[newbie] Networking Question
One more message from the 'newbie' trenches I need a little expert help on getting my machine to recognize network file systems. At work I've got LM 8.0 installed on a Micron Millenium running a ~500mhz PII. We're on a Sun-based intranet supported by a bunch of clever folks who know Unix and generic linux and, on the linux side, are most familiar with RedHat. Officially, we're a Sun/Microsoft only site but our data management people do have a few linux servers running, etc. Here's the problem. I can't see the network file systems from my linux machine. I'm on the network fine. I've done the following per the instructions of our network gurus (without really knowing what is behind this and without them putting their hands on my machine): 1. install and turn on the ypbind and autofs daemons. 2. go to 'etc/auto.master' and add the line: /net yp:auto.net --timeout=60 3. go to '/etc/rc.d/init.d' and run 'autofs reload' 4. go to /net (which has been created on my machine) and do a 'ls'. I'm supposed to see all the network drives. I get nothing. If I run 'autofs status' I get: /usr/bin/automount --timeout 60 /net yp auto.net /home auto_home /usr/bin/automount --timeout 60 /- yp auto_direct -browse When I logon I see all the usernames on the system (NIS?). So where are the server files??? TIA. Terry Smith Woods Hole, MA
RE: [newbie] networking question
You need to run Samba on the linux box. Daryl Johnson Proplan Associates -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of BJS Sent: 05 April 2001 02:32 To: [EMAIL PROTECTED] Subject: [newbie] networking question Ok Box #1 runs windows 2000 Box #2 runs mandrake 7.2 and windows 2000 they are networked together with a lynksys 4 port router. I have a cable modem for internet access. I know how to get them networked for file sharing when they are both windows 2000... but what about when Linux is running? (which is what I want to do full time on the second box) I can see all my files on my windows partition in linux. I would love be be able to share out that directory so I can still access them on the win2k box. Is this easily done? I realize this question might not be suited for this list.. so if anyone could point me to a good website on this or maybe reccomend a good book? = Brian J Susol Raynham MA http://people.ne.mediaone.net/negative ICQ# 9088592 Yahoo: bsusol __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/
Re: [newbie] networking question
first step...turn off Plug and pray in bios... - Original Message - From: "Christopher" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, April 05, 2001 2:07 AM Subject: Re: [newbie] networking question How did you get Linux to see your network card? I've Mandrake 7.2 Deluxe, and have yet to get it to see my LinkSys 10/100 card. I'm lost. Any help there? Thanks, Christopher. - Original Message - From: "BJS" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, April 04, 2001 9:32 PM Subject: [newbie] networking question Ok Box #1 runs windows 2000 Box #2 runs mandrake 7.2 and windows 2000 they are networked together with a lynksys 4 port router. I have a cable modem for internet access. I know how to get them networked for file sharing when they are both windows 2000... but what about when Linux is running? (which is what I want to do full time on the second box) I can see all my files on my windows partition in linux. I would love be be able to share out that directory so I can still access them on the win2k box. Is this easily done? I realize this question might not be suited for this list.. so if anyone could point me to a good website on this or maybe reccomend a good book? = Brian J Susol Raynham MA http://people.ne.mediaone.net/negative ICQ# 9088592 Yahoo: bsusol __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
Re: [newbie] networking question
Ed Tharp wrote: first step...turn off Plug and pray in bios... - Original Message - From: "Christopher" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, April 05, 2001 2:07 AM Subject: Re: [newbie] networking question How did you get Linux to see your network card? I've Mandrake 7.2 Deluxe, and have yet to get it to see my LinkSys 10/100 card. I'm lost. Any help there? Hi, The first thing you should know is that linksys changes chip suppliers like most of us change clothes. Over the last few years, the same model cards have used 4 or 5 different chips. The tulip family and it's clones have given the developers fits. You might try using the old_tulip driver. #/etc/rc.d/init.d/network stop # modprobe old_tulip #/etc/rc.d/init.d/network start If this works you can edit /etc/conf.modules and change tulip to old_tulip. There was a post earlier by acar (subj: LINKSYS ETHERFAST) that you might want to look at first. If that doesn't work try the above. -Steve
[newbie] networking question
Ok Box #1 runs windows 2000 Box #2 runs mandrake 7.2 and windows 2000 they are networked together with a lynksys 4 port router. I have a cable modem for internet access. I know how to get them networked for file sharing when they are both windows 2000... but what about when Linux is running? (which is what I want to do full time on the second box) I can see all my files on my windows partition in linux. I would love be be able to share out that directory so I can still access them on the win2k box. Is this easily done? I realize this question might not be suited for this list.. so if anyone could point me to a good website on this or maybe reccomend a good book? = Brian J Susol Raynham MA http://people.ne.mediaone.net/negative ICQ# 9088592 Yahoo: bsusol __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/
Re: [newbie] networking question
How did you get Linux to see your network card? I've Mandrake 7.2 Deluxe, and have yet to get it to see my LinkSys 10/100 card. I'm lost. Any help there? Thanks, Christopher. - Original Message - From: "BJS" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, April 04, 2001 9:32 PM Subject: [newbie] networking question Ok Box #1 runs windows 2000 Box #2 runs mandrake 7.2 and windows 2000 they are networked together with a lynksys 4 port router. I have a cable modem for internet access. I know how to get them networked for file sharing when they are both windows 2000... but what about when Linux is running? (which is what I want to do full time on the second box) I can see all my files on my windows partition in linux. I would love be be able to share out that directory so I can still access them on the win2k box. Is this easily done? I realize this question might not be suited for this list.. so if anyone could point me to a good website on this or maybe reccomend a good book? = Brian J Susol Raynham MA http://people.ne.mediaone.net/negative ICQ# 9088592 Yahoo: bsusol __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
Re: [newbie] Networking question...
I'm with similar questions. Looking forward to hearing responses to this. What hardware is necessary if 2 or 3 machines will be networked in a LAN, connection sharing, etc.)? What working/cost differences are there between hubs, routers and switches or are 2 or more of these synonymous? Dave (I originally posted this on Wednesday at just about the time everything became silent for a while.. early afternoon NY time. If you did receive this and the next message, please accept my humble apologies. It never came back to my box nor did I see a response to it.) Matt Schroeder wrote: Can I use a switch instead of a router to connect a Linux and a Win 98 machine? I know most people use a router but I have a 16 port switch that I got for cheap... (SMC EZ NET 10/100 Switch - 16 Ports) It says it also works as a router but can dramatically improve networking speed as a switch... I have no manuals or anything. Just the switch itself. Also, can I later add a DSL modem to the switch and share my DSL between the systems? I know so little about networking that it's a shame. Are there any how to's or anything that might help out... -- Dave Burrows 741 Cleveland Road Washington, PA 15301 USA
Re: [newbie] Networking question...
I use the linksys cable/DSL router. It is fine for a home LAN. It is fast and works well. With the Linksys models the prices between hubs, switches, and routers go up about $15 per level (depending on the number of ports, obviously). Their multi-port router's include a built in switch. The switch is far better than a hub. I see no reason to purchase a hub. The hub would share the bandwidth among all the ports. So if you have 100mb 5-port hub, each port gets 20mb. The switch dedicates 100mb to each hub. On top of that, the linksys supposedly gives each port 100mb upload and 100mb download. Because the router is also a switch, this is true for the router as well. Of course, the router allows you to hookup several computers to the internet or some other network. And it basically routes data to and from the proper computers. If you have a lan you want to hook to the internet, a router would certainly be the most desirable method so long as the price is affordable. However, you can use your switch. You will need to set up a computer to act as the router. In linux, check enable routing in the networking section of linuxconf. In windows set up Internet Sharing. This server will need an extra ethernet card. One hooks to the lan, the other to the internet (or whatever network you are adding). The client computers should then use the IP address of this new routing server as their (the client's) default gateway. The server IP should be for the ethernet card attached to the internet, I believe. I use a router, so you can try the other if I am wrong. The disadvantage of using an ordinary switch instead of a router is that if you power down this server, all clients obviously lose their ability to get to the outside network. The router will give you the benefit of always being available. Some (like Linksys) even include a fair firewall. --- Dave Burrows [EMAIL PROTECTED] wrote: I'm with similar questions. Looking forward to hearing responses to this. What hardware is necessary if 2 or 3 machines will be networked in a LAN, connection sharing, etc.)? What working/cost differences are there between hubs, routers and switches or are 2 or more of these synonymous? Dave (I originally posted this on Wednesday at just about the time everything became silent for a while.. early afternoon NY time. If you did receive this and the next message, please accept my humble apologies. It never came back to my box nor did I see a response to it.) Matt Schroeder wrote: Can I use a switch instead of a router to connect a Linux and a Win 98 machine? I know most people use a router but I have a 16 port switch that I got for cheap... (SMC EZ NET 10/100 Switch - 16 Ports) It says it also works as a router but can dramatically improve networking speed as a switch... I have no manuals or anything. Just the switch itself. Also, can I later add a DSL modem to the switch and share my DSL between the systems? I know so little about networking that it's a shame. Are there any how to's or anything that might help out... -- Dave Burrows 741 Cleveland Road Washington, PA 15301 USA __ Do You Yahoo!? Yahoo! Auctions - Buy the things you want at great prices. http://auctions.yahoo.com/
RE: [newbie] Networking question...
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Todd Flinders Sent: Friday, January 26, 2001 12:20 PM To: [EMAIL PROTECTED] Subject: Re: [newbie] Networking question... "The switch is far better than a hub. I see no reason to purchase a hub. The hub would share the bandwidth among all the ports. So if you have 100mb 5-port hub, each port gets 20mb." While your intent is very good, this statement is incorrect and misleading to newbies. I recently had to explain this very misconception to another newbie on this list who had been told the same by an overzealous sales person... Yes a hub "shares" it's bandwidth among it's ports, but it doesn't do it as you describe. ANY connected device is free to "grab" the LAN at full bandwidth. Collision avoidance and detection comes into play, as another device must listen for traffic on the LAN before attempting to utilize it. The device wanting to enter into the fray, must "back off" if it "hears" a transmission already in progress on the LAN. The end result is that -NOT- that "each port gets 20mb". Rather transmission time is divided among all the connected and active devices. Thus if a device is not transmitting, it does not use up bandwidth. Since on a 5 port LAN it is unlikely that saturation will occur for any length of time, a switch, while nice, remains overkill. Should all 5 workstations decide to stream an entire CD-ROM to another machine, then indeed the difference between a switch and hub would be apparent. But then again on a 5 port LAN, even with a switch, you'll probably be waiting on the recipient devices anyway, giving you somewhat similar performance... I.E. if three machines are sending to one device, at least two will be waiting at any time, even with a switch... -JMS
[newbie] Networking question...
Can I use a switch instead of a router to connect a Linux and a Win 98 machine? I know most people use a router but I have a 16 port switch that I got for cheap... (SMC EZ NET 10/100 Switch - 16 Ports) It says it also works as a router but can dramatically improve networking speed as a switch... I have no manuals or anything. Just the switch itself. Also, can I later add a DSL modem to the switch and share my DSL between the systems? I know so little about networking that it's a shame. Are there any how to's or anything that might help out...
RE: [newbie] Networking question...
Yes, logically a switch works just like a hub. Plug your machines into the switch and you are done. Switches have many advantages... I.E. support for full duplex operations, etc. -JMS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Matt Schroeder Sent: Wednesday, January 24, 2001 11:56 AM To: [EMAIL PROTECTED] Subject: [newbie] Networking question... Can I use a switch instead of a router to connect a Linux and a Win 98 machine? I know most people use a router but I have a 16 port switch that I got for cheap... (SMC EZ NET 10/100 Switch - 16 Ports) It says it also works as a router but can dramatically improve networking speed as a switch... I have no manuals or anything. Just the switch itself. Also, can I later add a DSL modem to the switch and share my DSL between the systems? I know so little about networking that it's a shame. Are there any how to's or anything that might help out...
RE: [newbie] networking question
On Sat, 17 Jun 2000, Jose M. Sanchez wrote: Once it's up and running, you don't need much. The problem is that the installers and configuration utilities utilize X windows... Yes, you can do this in textmode... but it becomes very complicated for a newbie to deal with textmode and script editing... etc. Once you begin to deal with firewalls, I think it's really worthfull to learn how your system really works and how to use commands such as ifconfig, route, ipchains, etc... But even if you are not familiar with these, you don't really need it. You seem to forget that the linuxconf client can also run in text mode. ok, linuxconf is YAUSR (Yet Another Unneeded Server Running), but it is less place and ressource consuming than X. Anyway after things are set up 32 megs or less will often do as long as the latency between your interfaces is relatively low. True. And You usually don't need much network performance between a LAN and an internet connection... You have a P100 which is normally adecuate for cable modem speeds, esp. due to the PCI bus. He is talking about a 486. Have you every tried a dual ISA 486 configuration? I can't speek for myself, but I already heard about such configurations (for example in the OpenBSD mailing list). It works, if you minimize the installation requirements... but performance is not optimal... or you can run something like the floppy based bare Linux distros which tend to work well... like the Linux Router Project... Of course, a mini-distro is also a good solution. For Mandrake, however he is best advised to get more RAM... just to permit the install to complete. Use X to set things up and test... and then he can dump X and all the X apps. It is true as long as you are speaking about the 7.1 version. Personaly, on my P100, I installed an mdk 6.1 and performances are not a problem. And I already used linux on a 486 (not as a router, but as a file server) and it worked quite well. Or, help him set it up in text mode... No problem. I can do that... :-) Flupke -JMS |-Original Message- |From: flupke [mailto:[EMAIL PROTECTED]] |Sent: Saturday, June 17, 2000 6:21 AM |To: bascule |Cc: [EMAIL PROTECTED] |Subject: Re: [newbie] networking question | | |I don't agree. I have a firewall between my LAN and my cable-modem |internet connection, with the following configuration : |P100, 24 MB RAM, 300 MB HD, 2 PCI NE200 compatible nics, no screen, no |keyboard. And the average load of the machine is near the 0%. | |Concerning X, I personnaly consider it as a waste of space and resource, |on a machine that really don't need it. And I find it dangerous to add an |unneeded server on a machine that has to deal with security. | |Just my 2 cent... | |HTH |Flupke | | | |One do really not need to have much memory to make a firewall. | |On Wed, 14 Jun 2000, bascule wrote: | | hi, and what a useful answer! | | this is exactly the stuff that the books i have looked at assumed i | already knew! | | i have to admit though, that i'm a bit worried about needing so much | memory for my 486, i keep reading about how such machines make good | firewalls for smalltime users like me but i don't think my 486 can have | 64meg! | | thanks again | | bascule | | | | --- | | | | | it is my intention to one day have the 486 machine be a firewall, i | perceive that one day the uk will have reasonably priced unmetered isp | access and i want to be ready! | | --- | | I hope your 486 has at least 64megs of RAM. | | While a 486 does fine as a router, it normally does so if it |is not bogged | down with things like Xwindows. You can use X to set things up |though, then | merely have the computer come up in text mode. | | -JMS | [EMAIL PROTECTED] | | | | |-- | There's no place like ~ ! | -- There's no place like ~ !
Re: [newbie] networking question
hi, thanks for that url, as for my 486 it has 12meg ram, 540mb hard drive, vlb i/o card, trident tgui9440 vlb video card,the processor is reported as a 'Cx486 DX2-S at 66mhz' netgear ea201 nic and a cdrom that i obtained for free from a friend and 'repaired' it is labelled an xcelsior-24x, the tray had come out and by taking it apart i managed to get it working again (as far as i can tell) i managed to install redhat 6.0 on to the machine and after that i had one sucessful install of mandrake7-02 i486 but when i tried to reinstall recently i had problems, i keep getting 'abnormal termination' errors or something similar while all the selected packages are being copied over, selecting alt-f4 (or was it alt-f3?) i see messages about 'hdd tray is open' hdd should be the cdrom drive so maybe it isn't as functional as i think it is, only i have subsequently discovered that my mandrake i486 iso that i downloaded to burn to cd is failing the md5sum test so maybe this is the problem instead, running windows i had no problems using the cdrom drive to copy files -even used it to install win95 for a laugh!- if this helps then i'm glad, all i know is that i have had two successful installs so it's not impossible, looking ahead, if after i obtain a known good copy of the mandrake i486 iso i find that my cdrom is faulty then does anyone know if i can install from my other machine via the nic? bascule Ot Ratsaphong wrote: I have a 486/66 VL-bus PC with 32MB RAM and a Trident Video card. I have not been able to install anything after RedHat 5.2. I'm interested in upgrading to MDK 7.02 486 and am interested to hear that you have been successful at it. Can you tell me if your H/w is similar to mine? Thanks, Ot 8^) -Original Message-
Re: [newbie] networking question
hi, and what a useful answer! this is exactly the stuff that the books i have looked at assumed i already knew! i have to admit though, that i'm a bit worried about needing so much memory for my 486, i keep reading about how such machines make good firewalls for smalltime users like me but i don't think my 486 can have 64meg! thanks again bascule 2)is the ip address of each nic the same as each machine or is that different? (i ask because i know that one machine could have more than one nic) --- It is different, but a part of the same subnet. Welcome to Networking 101. Let's assume that machine A has two nic cards, for whatever purposes. Then Machine B has one. Machine A B are connected to a common hub. Only ONE of the interfaces on A is connected to the hub. The other is connected to another LAN, DSL/CABLE modem, etc. Now the interfaces on the same "segment" (in this case connected to the same hub) would need to be on the same "subnet". If you've elected to use the reserved IP's (a wise decision) of 192.168.0.1 thru 192.168.0.254 you can set up Machine B to use 192.168.0.2 or 3, etc. Machine A can also use about any IP from 1 thru 254. 1 however is a special case. It is normally used for Routers or Gateways... so if A is to be a gateway... Nat, etc... 192.168.0.1 is a good choice. Two other things you need to know. 192.168.0.255 is called a "broadcast" address. The computers use this reserved IP to "broadcast" to other nodes on the same "subnet" or LAN. 192.168.0.0 is the NETWORK address. Addresses ending in Zero refer to a group or subnet. Your Netmask is 255.255.255.0 since this is a class C network. The Netmask is used to filter out packets. It helps distinguish their destination... --- 3)do i need a default gateway or to set up any routing info if i only have two machines connected via a hub? --- If machine A is going to be the gateway (I.E. connected to a Cable Modem/DSL, etc.) IT is the default gateway. In Linuxconf you ENABLE routing, but in the field where it says "Default Gateway" you leave it BLANK on A. On machine B you fill in A's IP number... Thus B uses A as it's gateway. Get it? --- 4)i know about the reserved ip addresses but does it matter which address in an allowed range is used? i have used 192.168.0.1 on one box and 192.168.0.2 on the other --- See above --- 5)what other quiestions should i have asked?! --- For starters dealing with DNS. DHCP for your OTHER Ethernet card. Security levels. Samba, NFS, etc. quite a long list if you are going to set up everything... though worth the effort. --- it is my intention to one day have the 486 machine be a firewall, i perceive that one day the uk will have reasonably priced unmetered isp access and i want to be ready! --- I hope your 486 has at least 64megs of RAM. While a 486 does fine as a router, it normally does so if it is not bogged down with things like Xwindows. You can use X to set things up though, then merely have the computer come up in text mode. -JMS [EMAIL PROTECTED]
RE: [newbie] networking question
Without 64 Megs you will have problems getting this to work. The installer fails to run properly, nor can you get the installers working under Xwindows.. You can however install it with 64 megs then remove 32 megs later. -JMS |-Original Message- |From: Ot Ratsaphong [mailto:[EMAIL PROTECTED]] |Sent: Tuesday, June 13, 2000 8:39 AM |To: [EMAIL PROTECTED] |Subject: Re: [newbie] networking question | | |Hi bascule, | |If you have a look at the following URL, you will find all you need to get |you going. I followed the instructions to get my 486 configured as a router |and firewall for my small home network. | |http://members.home.net/ipmasq/ipmasq-HOWTO-1.82.html | |I have a question for you: | |I have a 486/66 VL-bus PC with 32MB RAM and a Trident Video card. |I have not |been able to install anything after RedHat 5.2. I'm interested in upgrading |to MDK 7.02 486 and am interested to hear that you have been successful at |it. Can you tell me if your H/w is similar to mine? | |Thanks, |Ot 8^) | | |-Original Message- |From: bascule [EMAIL PROTECTED] |To: [EMAIL PROTECTED] [EMAIL PROTECTED] |Date: Monday, 12 June 2000 10:38 |Subject: [newbie] networking question | | |i am having trouble setting up two machines to talk to each other, i'll |put all the questions in this one post since they are all related, | |1) do i need to 'fake' a domain for both machines to belong to or is it |enough to give each machine a name? |2)is the ip address of each nic the same as each machine or is that |different? (i ask because i know that one machine could have more than |one nic) |3)do i need a default gateway or to set up any routing info if i only |have two machines connected via a hub? |4)i know about the reserved ip addresses but does it matter which |address in an allowed range is used? i have used 192.168.0.1 on one box |and 192.168.0.2 on the other |5)what other quiestions should i have asked?! | |i have never connected two machines before, i have read a couple of |books but they are a little over my head and seem to assume a lot, my |machines both run mandrake 7-02 one is a 486 and one is an amdk6-2 400, |i have installed a netgear ea201 in each machine and according to the |diagnostic disk provided both are setup ok. of course until i know that |linux is configured properly in both machines i won't know this for |sure, | |any answers, recommended books, urls gratefully received, | |it is my intention to one day have the 486 machine be a firewall, i |perceive that one day the uk will have reasonably priced unmetered isp |access and i want to be ready! |
Re: [newbie] networking question
I don't agree. I have a firewall between my LAN and my cable-modem internet connection, with the following configuration : P100, 24 MB RAM, 300 MB HD, 2 PCI NE200 compatible nics, no screen, no keyboard. And the average load of the machine is near the 0%. Concerning X, I personnaly consider it as a waste of space and resource, on a machine that really don't need it. And I find it dangerous to add an unneeded server on a machine that has to deal with security. Just my 2 cent... HTH Flupke One do really not need to have much memory to make a firewall. On Wed, 14 Jun 2000, bascule wrote: hi, and what a useful answer! this is exactly the stuff that the books i have looked at assumed i already knew! i have to admit though, that i'm a bit worried about needing so much memory for my 486, i keep reading about how such machines make good firewalls for smalltime users like me but i don't think my 486 can have 64meg! thanks again bascule --- it is my intention to one day have the 486 machine be a firewall, i perceive that one day the uk will have reasonably priced unmetered isp access and i want to be ready! --- I hope your 486 has at least 64megs of RAM. While a 486 does fine as a router, it normally does so if it is not bogged down with things like Xwindows. You can use X to set things up though, then merely have the computer come up in text mode. -JMS [EMAIL PROTECTED] -- There's no place like ~ !
RE: [newbie] networking question
Once it's up and running, you don't need much. The problem is that the installers and configuration utilities utilize X windows... Yes, you can do this in textmode... but it becomes very complicated for a newbie to deal with textmode and script editing... etc. Anyway after things are set up 32 megs or less will often do as long as the latency between your interfaces is relatively low. You have a P100 which is normally adecuate for cable modem speeds, esp. due to the PCI bus. He is talking about a 486. Have you every tried a dual ISA 486 configuration? It works, if you minimize the installation requirements... but performance is not optimal... or you can run something like the floppy based bare Linux distros which tend to work well... like the Linux Router Project... For Mandrake, however he is best advised to get more RAM... just to permit the install to complete. Use X to set things up and test... and then he can dump X and all the X apps. Or, help him set it up in text mode... -JMS |-Original Message- |From: flupke [mailto:[EMAIL PROTECTED]] |Sent: Saturday, June 17, 2000 6:21 AM |To: bascule |Cc: [EMAIL PROTECTED] |Subject: Re: [newbie] networking question | | |I don't agree. I have a firewall between my LAN and my cable-modem |internet connection, with the following configuration : |P100, 24 MB RAM, 300 MB HD, 2 PCI NE200 compatible nics, no screen, no |keyboard. And the average load of the machine is near the 0%. | |Concerning X, I personnaly consider it as a waste of space and resource, |on a machine that really don't need it. And I find it dangerous to add an |unneeded server on a machine that has to deal with security. | |Just my 2 cent... | |HTH |Flupke | | | |One do really not need to have much memory to make a firewall. | |On Wed, 14 Jun 2000, bascule wrote: | | hi, and what a useful answer! | | this is exactly the stuff that the books i have looked at assumed i | already knew! | | i have to admit though, that i'm a bit worried about needing so much | memory for my 486, i keep reading about how such machines make good | firewalls for smalltime users like me but i don't think my 486 can have | 64meg! | | thanks again | | bascule | | | | --- | | | | | it is my intention to one day have the 486 machine be a firewall, i | perceive that one day the uk will have reasonably priced unmetered isp | access and i want to be ready! | | --- | | I hope your 486 has at least 64megs of RAM. | | While a 486 does fine as a router, it normally does so if it |is not bogged | down with things like Xwindows. You can use X to set things up |though, then | merely have the computer come up in text mode. | | -JMS | [EMAIL PROTECTED] | | | | |-- | There's no place like ~ ! |
Re: [newbie] networking question
Hi Bascule. On Mon, 12 Jun 2000, bascule wrote: i am having trouble setting up two machines to talk to each other, i'll put all the questions in this one post since they are all related, 1) do i need to 'fake' a domain for both machines to belong to or is it enough to give each machine a name? It's better to have a domain. 2)is the ip address of each nic the same as each machine or is that different? (i ask because i know that one machine could have more than one nic) No. Each nic has an IP adress. If a machine has 5 nics, then it will respond to 5 IPs. 3)do i need a default gateway or to set up any routing info if i only have two machines connected via a hub? If you just intend to communicate between the two comps, it's not necessary. But if you want for instance set up a firewall masquerading to share your connection between your machines, then that becomes another problem. 4)i know about the reserved ip addresses but does it matter which address in an allowed range is used? i have used 192.168.0.1 on one box and 192.168.0.2 on the other That's fine. 5)what other quiestions should i have asked?! Depends on what you plan to do with your network... :-) i have never connected two machines before, i have read a couple of books but they are a little over my head and seem to assume a lot, my machines both run mandrake 7-02 one is a 486 and one is an amdk6-2 400, i have installed a netgear ea201 in each machine and according to the diagnostic disk provided both are setup ok. of course until i know that linux is configured properly in both machines i won't know this for sure, any answers, recommended books, urls gratefully received, I would suggest you to read the LAME (Linux Administration Made Easy) and other books from the LDP (the NAG and SAG [Network/System Administrator's Guide],...) Thoses are available in different formats and language at http://ldp.linuxbe.org . There sure are other mirrors somewhere else, but I don't know them. it is my intention to one day have the 486 machine be a firewall, i perceive that one day the uk will have reasonably priced unmetered isp access and i want to be ready! Well, prepare your knowledge before worying about hardware (but ok, it's also important to have something to make it run...). Read as lot as you can about TCP/IP, routing, browse the HOWTOs, etc... HTH Flupke -- There's no place like ~ !
Re: [newbie] networking question
On Mon, 12 Jun 2000, bascule wrote: As far as I can help you: 1) do i need to 'fake' a domain for both machines to belong to or is it enough to give each machine a name? A name for each machine is enough. 2)is the ip address of each nic the same as each machine or is that different? (i ask because i know that one machine could have more than one nic) Each Nic needs a separate IP address. If you hand out equal IP's there will be confusion all around when one machine shouts "Hey, 192.168.0.1, here's something. Eh... oh, it's for me too??" 3)do i need a default gateway or to set up any routing info if i only have two machines connected via a hub? Networking set up a gateway thing for me, on 192.168.0.255. I don't know if I use it, but it apparently is there. 4)i know about the reserved ip addresses but does it matter which address in an allowed range is used? i have used 192.168.0.1 on one box and 192.168.0.2 on the other This is how I did it also. You can also use 192.168.0.100 and 192.168.0.200, as long as you don't go over 255 (254 in case you have the gateway on 255). This of course limits you to having only 253 possible machines on your network. SHould be enough, I guess. 5)what other quiestions should i have asked?! Do I need to enable all NFS daemons in the services? Yes. At least, if you want the machines to be able to transfer files to and from. Can I share drives over the network? Yes. In your /etc/exports you write: mountpoint machine(rw,no_root_squash) where mountpoint is e.g. / or /home or /usr, or whatever share you want the other side to access, (add a line for each mountpoint) and machine is the name of the OTHER machine. So if you set this up on machine "bascule_main", and you want "bascule_firewall" to be able to access the /home share on "bascule_main", this would read: /home bascule_firewall(rw,no_root_squash) Then on "bascule_firewall" you mount this one as: mount bascule_main:/home /mnt/main And through /mnt/main on bascule_firewall you then can access bascule_main's /home directories. Was this clear? Don't know. Was this extensive? I guess! You're in England? Neat! Tomorrow I am coming over for a week. I am going to spend a week in Wales! Paul -- Yesterday is Past; Tomorrow is the Future; Today is a Gift...That is why we call it The Present. )0([[EMAIL PROTECTED]])0( http://nlpagan.net - ICQ 147208 Registered Linux User 174403
RE: [newbie] networking question
-Original Message- From: bascule [mailto:[EMAIL PROTECTED]] Sent: Sunday, June 11, 2000 8:57 PM To: [EMAIL PROTECTED] Subject: [newbie] networking question i am having trouble setting up two machines to talk to each other, i'll put all the questions in this one post since they are all related, 1) do i need to 'fake' a domain for both machines to belong to or is it enough to give each machine a name? --- Yes for most purposes you do. --- 2)is the ip address of each nic the same as each machine or is that different? (i ask because i know that one machine could have more than one nic) --- It is different, but a part of the same subnet. Welcome to Networking 101. Let's assume that machine A has two nic cards, for whatever purposes. Then Machine B has one. Machine A B are connected to a common hub. Only ONE of the interfaces on A is connected to the hub. The other is connected to another LAN, DSL/CABLE modem, etc. Now the interfaces on the same "segment" (in this case connected to the same hub) would need to be on the same "subnet". If you've elected to use the reserved IP's (a wise decision) of 192.168.0.1 thru 192.168.0.254 you can set up Machine B to use 192.168.0.2 or 3, etc. Machine A can also use about any IP from 1 thru 254. 1 however is a special case. It is normally used for Routers or Gateways... so if A is to be a gateway... Nat, etc... 192.168.0.1 is a good choice. Two other things you need to know. 192.168.0.255 is called a "broadcast" address. The computers use this reserved IP to "broadcast" to other nodes on the same "subnet" or LAN. 192.168.0.0 is the NETWORK address. Addresses ending in Zero refer to a group or subnet. Your Netmask is 255.255.255.0 since this is a class C network. The Netmask is used to filter out packets. It helps distinguish their destination... --- 3)do i need a default gateway or to set up any routing info if i only have two machines connected via a hub? --- If machine A is going to be the gateway (I.E. connected to a Cable Modem/DSL, etc.) IT is the default gateway. In Linuxconf you ENABLE routing, but in the field where it says "Default Gateway" you leave it BLANK on A. On machine B you fill in A's IP number... Thus B uses A as it's gateway. Get it? --- 4)i know about the reserved ip addresses but does it matter which address in an allowed range is used? i have used 192.168.0.1 on one box and 192.168.0.2 on the other --- See above --- 5)what other quiestions should i have asked?! --- For starters dealing with DNS. DHCP for your OTHER Ethernet card. Security levels. Samba, NFS, etc. quite a long list if you are going to set up everything... though worth the effort. --- i have never connected two machines before, i have read a couple of books but they are a little over my head and seem to assume a lot, my machines both run mandrake 7-02 one is a 486 and one is an amdk6-2 400, i have installed a netgear ea201 in each machine and according to the diagnostic disk provided both are setup ok. of course until i know that linux is configured properly in both machines i won't know this for sure, --- Are you using a HUB? (this is a misnomer, it's really a concentrator, but that's another matter...). You cannot simply connect the Ethernet ports together. This doesn't work. any answers, recommended books, urls gratefully received, --- There are many books on this matter. If you are in a mixed environment one of the newer ones about integrating Windows and Linux are particularly good. it is my intention to one day have the 486 machine be a firewall, i perceive that one day the uk will have reasonably priced unmetered isp access and i want to be ready! --- I hope your 486 has at least 64megs of RAM. While a 486 does fine as a router, it normally does so if it is not bogged down with things like Xwindows. You can use X to set things up though, then merely have the computer come up in text mode. -JMS [EMAIL PROTECTED]
Re: [newbie] networking question
Hi bascule, If you have a look at the following URL, you will find all you need to get you going. I followed the instructions to get my 486 configured as a router and firewall for my small home network. http://members.home.net/ipmasq/ipmasq-HOWTO-1.82.html I have a question for you: I have a 486/66 VL-bus PC with 32MB RAM and a Trident Video card. I have not been able to install anything after RedHat 5.2. I'm interested in upgrading to MDK 7.02 486 and am interested to hear that you have been successful at it. Can you tell me if your H/w is similar to mine? Thanks, Ot 8^) -Original Message- From: bascule [EMAIL PROTECTED] To: [EMAIL PROTECTED] [EMAIL PROTECTED] Date: Monday, 12 June 2000 10:38 Subject: [newbie] networking question i am having trouble setting up two machines to talk to each other, i'll put all the questions in this one post since they are all related, 1) do i need to 'fake' a domain for both machines to belong to or is it enough to give each machine a name? 2)is the ip address of each nic the same as each machine or is that different? (i ask because i know that one machine could have more than one nic) 3)do i need a default gateway or to set up any routing info if i only have two machines connected via a hub? 4)i know about the reserved ip addresses but does it matter which address in an allowed range is used? i have used 192.168.0.1 on one box and 192.168.0.2 on the other 5)what other quiestions should i have asked?! i have never connected two machines before, i have read a couple of books but they are a little over my head and seem to assume a lot, my machines both run mandrake 7-02 one is a 486 and one is an amdk6-2 400, i have installed a netgear ea201 in each machine and according to the diagnostic disk provided both are setup ok. of course until i know that linux is configured properly in both machines i won't know this for sure, any answers, recommended books, urls gratefully received, it is my intention to one day have the 486 machine be a firewall, i perceive that one day the uk will have reasonably priced unmetered isp access and i want to be ready!
[newbie] networking question
i am having trouble setting up two machines to talk to each other, i'll put all the questions in this one post since they are all related, 1) do i need to 'fake' a domain for both machines to belong to or is it enough to give each machine a name? 2)is the ip address of each nic the same as each machine or is that different? (i ask because i know that one machine could have more than one nic) 3)do i need a default gateway or to set up any routing info if i only have two machines connected via a hub? 4)i know about the reserved ip addresses but does it matter which address in an allowed range is used? i have used 192.168.0.1 on one box and 192.168.0.2 on the other 5)what other quiestions should i have asked?! i have never connected two machines before, i have read a couple of books but they are a little over my head and seem to assume a lot, my machines both run mandrake 7-02 one is a 486 and one is an amdk6-2 400, i have installed a netgear ea201 in each machine and according to the diagnostic disk provided both are setup ok. of course until i know that linux is configured properly in both machines i won't know this for sure, any answers, recommended books, urls gratefully received, it is my intention to one day have the 486 machine be a firewall, i perceive that one day the uk will have reasonably priced unmetered isp access and i want to be ready!
Re: [newbie] Networking question
First let me show my suspicion at someone who misspells their own name (goerge). Jokes aside, you need to set up your box for IP Masquerading. This includes compiling the kernel and a few startup scripts. Been there, done that. It ain't hard, just a hassle. This will let your Win98 box into the internet, as mine does. Lemme know if you wanna do the kernel thing. Tmo
Re: [newbie] Networking question
i mis spell my name for fun, but anyway yea im totally intrested in doing this any help would be nifty thanks george
Re: [newbie] Networking question
First, you'll need to be able to compile the kernel so you need all of the sources, compilers and so on loaded onto your box. If you didn't do this at install time then you'll need to use rpm to get them (it's easier at install time). There's a couple of "experiment" flags that need to be set in the kernel so it's unlikely the kernel you're using will work. Give it a try anyway. There's a good web site that tells you all you nedto know about IP Masquerading. It's http://members.home.net. Go to the /ipmasq/ipmasq-HOWTO-1.79.html page and browse away. Section 3.3 tells you what to set for compiling the kernel. Follow it exactly. When setting the kernel options use "make xconfig" instead of "make config". This brings up a GUI screen that makes it much easier to set the flags you need (I learned this the hard way). It has help for just about every option so you can understand what you're doing. At the end of the make process instead of using "make" or "make zImage" I found I had to use "make bzImage" to get a kernel small enough to load. There are plenty of HOWTOs for building the kernel. Use the same addresses that are used in the examples. They're not absolutely necessary but will keep you from making a simple type-os and spending hours trying to figure out what you did wrong. You can always change them later. My problem is that I started with a "good" book which had one line in one of the rc files wrong. It took two days to figure it out. When I did EVERYTHING on this web site it worked perfectly. This stuff's slicker than Willie. Lemme know how it works. I'm using it the same way you'll be, with two network cards in the Linux box. Regards, Tom
Re: [newbie] Networking question
[EMAIL PROTECTED] wrote: First, you'll need to be able to compile the kernel so you need all of the You do -NOT- need to mess with the kernel to set up IP-Masq on a stock mandrake box. Read the IP-Masq how-to and follow the directions, but don't worry about the kernel. -- Brett Jones [EMAIL PROTECTED]
