Re: fiber
Lenght of a BNC ethernet trunc can be 320m ! Width a good cable you can force the limit at 350m. Most 10mbs hubs have a bnc connextor width 180/320m switch ! You can get a link width 10Mb/s bandwidth. Other sollution is two etherent segment linked width a ethernet repeater. Other 10Mbs sollution is thin etnernet that support 500m/per segment. Russell Coker wrote: On Tue, 25 Jul 2000, Allen Ahoffman wrote: Can someone comment here on reasons to use fiber for network cable now instead of old style standard cat5 cable? I see lots of fiber equipment out there but 100mbps is 100mbps right? Is fiber economical when you get into over 100mbps situations? thanks. Fiber currently allows gigabit speeds. But there are some companies offering gigabit over Cat5 cable (but the quality of the cable would have to be significantly greater than most Cat5 implementations...). For 100M Cat5 is what you want. Installing a 100baseT network is really easy, especially as most people don't need a dedicated 100M to their desktop so you just run two cables to each group of desks in an office (one spare just in case) and have a desktop switch. -- My current location - X marks the spot. X X X -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: fiber
On Thu, 27 Jul 2000, Catalin Ciocoiu wrote: Lenght of a BNC ethernet trunc can be 320m ! Width a good cable you can force the limit at 350m. Most 10mbs hubs have a bnc connextor width 180/320m switch ! Is this for "thick Ethernet"? You can get a link width 10Mb/s bandwidth. Other sollution is two etherent segment linked width a ethernet repeater. Other 10Mbs sollution is thin etnernet that support 500m/per segment. That sounds quite good. Better than WaveLAN unless you are running between buildings and don't want to risk interferance! Russell Coker -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: fiber
Catalin Ciocoiu wrote: Lenght of a BNC ethernet trunc can be 320m ! Width a good cable you can force the limit at 350m. Most 10mbs hubs have a bnc connextor width 180/320m switch ! Be careful with this solution - it relies on the 2 locations being on the same power grid. If not you may run into some grounding problems. S. -- Simon Tennant, Web Team, Linuxcare, Inc. 415.577.6719 tel, 415.701.7457 fax pgp id: 05F76248FF62442C4D0010C09851C0746410974D Linuxcare. Support for the revolution. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: web server suggestions
Sven Burgener wrote: Hi all Sorry for this being so highly off-topic, forgive me; I need the infos. (It's just that debian lists are an excellent resort for information) I'd like some infos from people who've had experience with this: What web server software is in your opinion best for running on an NT machine? (Yes, NT) -- For reasons of compatibility and ease of maintainence, I strongly suggest staying with IIs or some other server designed for NT. It (NT) has enough problems without trying to get it to do something that Microsoft has effectively tried to keep folks from doing (using open source software). (How) does Apache run on NT? It runs fine, but the windows version is not as robust as the Linux/Unix etc. version. Plus, you will need to install some type of Perl (ActiveState) to get it to do anything worthwhile. The reason I'm posting this, though, is, that a friend of mine needs the infos, so I'll send any replies straight back to him. Tell your friend to check out the Apache and the ActiveState web site for explicit info. -- AdVance-Computing Systems We sell fine quality servers and workstations. We specialize in multiprocessor units. We install Debian Linux at no extra charge! John Foster [EMAIL PROTECTED] ICQ# 19460173 -- Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] /dev/null
web server suggestions
Hi all Sorry for this being so highly off-topic, forgive me; I need the infos. (It's just that debian lists are an excellent resort for information) I'd like some infos from people who've had experience with this: What web server software is in your opinion best for running on an NT machine? (Yes, NT) (How) does Apache run on NT? I've used Linux with Apache and that's always served my needs very well. Been *very* happy with it. The reason I'm posting this, though, is, that a friend of mine needs the infos, so I'll send any replies straight back to him. Again sorry for the OT-ness. Thanks tons in advance. Regards Sven -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Setting up DNS for virtual domains
At 09:23 AM 7/26/2000 -0400, Mostly Harmless wrote:
I'm going to try to explain this as bast I can though my understanding
of a lot of these issues is shaky at best.
I help admin the student computing organization's servers at my school.
We would like to offer full virtual domain service to our users, but we
do not have a 2nd level domain -- our main domain is wso.williams.edu,
also known as gertrude.williams.edu. For now, we ask the school's tech
guys to change the DNS whenever we need to a new computer. I'm
comfortable staying with that arrangement, but a lot of users have
registered domains with places that don't provide DNS service. We can't
get the school DNS to change every time this happens, so we've decided
to set up our main machine as DNS Nameserver. There's two main issues as
I see them -- the actual DNS configuration on the gertrude and getting
the machine "known" as a Nameserver out in the wide world.
Yes. Exactly.
Issue 1: I've looked far and wide on the Internet (probably not far and
wide enough) for resources telling me how to set up virtual domain
service. Most of the examples are for Bind 4.x which make things tough
(we're running 8). Essentially, we'd just like to have a lot of
different domains point to the same IP: gertrude's. We'll sort it all
out with Apache later (I can handle that part). But I just can't seem to
figure out how to do this -- we won't be providing DNS service for
the name gertrude.williams.edu or wso.williams.edu -- we just want to
specify 10-20 domains that should point to gertrude's IP. I think I need
a resource zone file for each domain (all based on some template) but
I'm having trouble. If anyone could point me in the direction of a
sample named.conf and a resource file or two for someone in my situation
I'd be really grateful.
I assume wso is the canonical name, I will use that. I am also going to be
using the BIND 8 format, named.conf, not named.boot, as that is the
recommended for Debian now.
Most importantly, the potato BIND has all his files in /etc/bind, so I will
follow that. Use updatedb and locate to find files in other versions.
Set up BIND on wso. Use the Debian package, install the default, caching,
forward only.
For each domain that you are going to provide a NS for, do the following:
In /etc/bind/named.conf , add the stanza
---
zone "DOMAIN.com." {
type master;
file "/etc/bind/db.DOMAIN.com";
};
---
Substituting the actual 2nd level name domain for DOMAIN.com. Notice final
"." on the zone line.
In /etc/bind, create a file called db.DOMAIN.com , and populate it as
follows (lines with a # prefix are comments for you, strip from file):
---
;Zone file for DOMAIN.com.
@ IN SOA wso.williams.edu. jredburn.wso.williams.edu. (
# The ".", not "@" after jredburn is correct
251601 ; serial, todays date + todays
serial #
# I like using MMDDxx for Serial, update each time you toch
this file
3600; refresh, seconds
600 ; retry, seconds
345600 ; expire, seconds
36000 ) ; minimum, seconds
IN NS wso.williams.edu.
MX 10 wso.williams.edu.
# If you want to recieve mail for them. Else remove line above.
www A IP.ADDRESS.OF.WSO
MX 10 wso.williams.edu.
# As above
LOC 41 50 0 N 87 35 0 W
# You will, of course, change this ;-)
ftp IN CNAME www
---
This will ensure that anyone asking wso for the adderss of www.DOMAIN.com.
will be returned wso's address.
Issue 2: As I understand it, none of this means much unless I can
specify gertrude as the nameserver for these domains. Currently, I'm
told she's not a valid nameserver. Does this mean I need to get the
person who runs DNS for gertrude (the school) to edit the DNS records
just this once and specify gertrude as a Nameserver? What exactly should
I ask them to do? They tend to be pretty helpful as long as I know what
I need done.
One thing, actually. Go to Network Solutions Register page. Fill up a
Host template for WSO.williams.edu. When you get a mail from them, forward
it to your Tech guys, who are in charge of the williams.edu zone. Once the
approve it, and send it to NSI, wso.williams.edu will be a "Host".
Ask all DOMAIN.com. holders to specify the name wso.williams.edu and its IP
address in their registrar's configuration.
thanks much if any of you made it this far,
jeremy
A CC: on any reply would be much appreciated - thanks.
Done.
I must say that you, or the Administrator of wso, is a very generous
chap. Most Administrators balk at giving users public_html access, you are
willing to set up Virtual hosts!!
Hope this helps
-- Ghane
--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe".
Re: Video Server....??
On Wed, Jul 26, 2000 at 09:24:18AM +0800, Donald Szeto wrote: Hi! Our school uses fiber optic backbones with Fast Ethernet segments and the Video Support Team had optimized the clips for better streaming without consuming much bandwidth. Sometimes, students do not need to play the video themselves, they can watch the movie from the projector :). what kind of server do you use for streaming, and is it available somewhere.. i need to build a system to stream a picture from the tv (yes, it's legal =) and my boss wanted sound too.. i've been trying to look at solutions like this.. but nothing proved good enough... (oh, and he is not willing to pay loads of money for this.. =( ) Regards, Sami haahtinen
Re: Setting up DNS for virtual domains
At 09:23 AM 7/26/2000 -0400, Mostly Harmless wrote:
I'm going to try to explain this as bast I can though my understanding
of a lot of these issues is shaky at best.
I help admin the student computing organization's servers at my school.
We would like to offer full virtual domain service to our users, but we
do not have a 2nd level domain -- our main domain is wso.williams.edu,
also known as gertrude.williams.edu. For now, we ask the school's tech
guys to change the DNS whenever we need to a new computer. I'm
comfortable staying with that arrangement, but a lot of users have
registered domains with places that don't provide DNS service. We can't
get the school DNS to change every time this happens, so we've decided
to set up our main machine as DNS Nameserver. There's two main issues as
I see them -- the actual DNS configuration on the gertrude and getting
the machine known as a Nameserver out in the wide world.
Yes. Exactly.
Issue 1: I've looked far and wide on the Internet (probably not far and
wide enough) for resources telling me how to set up virtual domain
service. Most of the examples are for Bind 4.x which make things tough
(we're running 8). Essentially, we'd just like to have a lot of
different domains point to the same IP: gertrude's. We'll sort it all
out with Apache later (I can handle that part). But I just can't seem to
figure out how to do this -- we won't be providing DNS service for
the name gertrude.williams.edu or wso.williams.edu -- we just want to
specify 10-20 domains that should point to gertrude's IP. I think I need
a resource zone file for each domain (all based on some template) but
I'm having trouble. If anyone could point me in the direction of a
sample named.conf and a resource file or two for someone in my situation
I'd be really grateful.
I assume wso is the canonical name, I will use that. I am also going to be
using the BIND 8 format, named.conf, not named.boot, as that is the
recommended for Debian now.
Most importantly, the potato BIND has all his files in /etc/bind, so I will
follow that. Use updatedb and locate to find files in other versions.
Set up BIND on wso. Use the Debian package, install the default, caching,
forward only.
For each domain that you are going to provide a NS for, do the following:
In /etc/bind/named.conf , add the stanza
---
zone DOMAIN.com. {
type master;
file /etc/bind/db.DOMAIN.com;
};
---
Substituting the actual 2nd level name domain for DOMAIN.com. Notice final
. on the zone line.
In /etc/bind, create a file called db.DOMAIN.com , and populate it as
follows (lines with a # prefix are comments for you, strip from file):
---
;Zone file for DOMAIN.com.
@ IN SOA wso.williams.edu. jredburn.wso.williams.edu. (
# The ., not @ after jredburn is correct
251601 ; serial, todays date + todays
serial #
# I like using MMDDxx for Serial, update each time you toch
this file
3600; refresh, seconds
600 ; retry, seconds
345600 ; expire, seconds
36000 ) ; minimum, seconds
IN NS wso.williams.edu.
MX 10 wso.williams.edu.
# If you want to recieve mail for them. Else remove line above.
www A IP.ADDRESS.OF.WSO
MX 10 wso.williams.edu.
# As above
LOC 41 50 0 N 87 35 0 W
# You will, of course, change this ;-)
ftp IN CNAME www
---
This will ensure that anyone asking wso for the adderss of www.DOMAIN.com.
will be returned wso's address.
Issue 2: As I understand it, none of this means much unless I can
specify gertrude as the nameserver for these domains. Currently, I'm
told she's not a valid nameserver. Does this mean I need to get the
person who runs DNS for gertrude (the school) to edit the DNS records
just this once and specify gertrude as a Nameserver? What exactly should
I ask them to do? They tend to be pretty helpful as long as I know what
I need done.
One thing, actually. Go to Network Solutions Register page. Fill up a
Host template for WSO.williams.edu. When you get a mail from them, forward
it to your Tech guys, who are in charge of the williams.edu zone. Once the
approve it, and send it to NSI, wso.williams.edu will be a Host.
Ask all DOMAIN.com. holders to specify the name wso.williams.edu and its IP
address in their registrar's configuration.
thanks much if any of you made it this far,
jeremy
A CC: on any reply would be much appreciated - thanks.
Done.
I must say that you, or the Administrator of wso, is a very generous
chap. Most Administrators balk at giving users public_html access, you are
willing to set up Virtual hosts!!
Hope this helps
-- Ghane
2500 Linux workstation !
In a slashdot articol somebody lace a interesing question What is the best solution for a network width 2500 Linux WorkStation ? I proposed a diskless workstation sollution becose is very robust sollution. Is it a good sollution What filesystem can be used for file sharing ?? Is NFS ok ??? What kind of authentification can be used in this network ? I waiting your answares !!
Re: fiber
On Tue, 25 Jul 2000, Allen Ahoffman wrote: Can someone comment here on reasons to use fiber for network cable now instead of old style standard cat5 cable? I see lots of fiber equipment out there but 100mbps is 100mbps right? Is fiber economical when you get into over 100mbps situations? thanks. Fiber currently allows gigabit speeds. But there are some companies offering gigabit over Cat5 cable (but the quality of the cable would have to be significantly greater than most Cat5 implementations...). For 100M Cat5 is what you want. Installing a 100baseT network is really easy, especially as most people don't need a dedicated 100M to their desktop so you just run two cables to each group of desks in an office (one spare just in case) and have a desktop switch. -- My current location - X marks the spot. X X X
Re: fiber - cat5 - wireless
On Wed, 26 Jul 2000, Helber wrote: What is the best way to conect two points at about 350 m away? When I say best I´m talking about $ and performance. Here's what I would do if I was paying. 350m is twice the maximum length of a segment of 10baseT/100baseT. So put a cheap hub or switch between them. You may think it's crazy to use a switch, but when you consider that a cheap switch (like the one I've got in my loungue) costs $120 and gives you 100M full duplex it's probably worth it. The only problem with this is that it relies on there being a good half-way point that you can run a switch. If you are considering running a line between two buildings then this won't work. But if the line is outside then there's the issue of electrical interferance and earth-loops. In that case I would consider the bandwidth requirements. If 2Mb/s is all you need then WaveLAN is a good solution. It can do 1Km with ease and 4Km+ if you use the right antennas and there's no interferance (NB it is generally not advertised as being capable of really long distances). WaveLAN does 2Mb/s over unregulated frequencies (you don't need a permit). Currently work is in progress on IEEE 802.11 wireless at 11Mb/s speed. AFAIK there are no available products that implement it. If all these options are unsuitable then you can use fiber. Fiber apparently isn't as difficult as it used to be. A former colleague of mine was considering implementing a gigabit Ethernet network in his home because fiber is so cheap and easy! This thing of taking an hour to do a termination is apparently a thing of the past. Russell Coker
Re: fiber
Lenght of a BNC ethernet trunc can be 320m ! Width a good cable you can force the limit at 350m. Most 10mbs hubs have a bnc connextor width 180/320m switch ! You can get a link width 10Mb/s bandwidth. Other sollution is two etherent segment linked width a ethernet repeater. Other 10Mbs sollution is thin etnernet that support 500m/per segment. Russell Coker wrote: On Tue, 25 Jul 2000, Allen Ahoffman wrote: Can someone comment here on reasons to use fiber for network cable now instead of old style standard cat5 cable? I see lots of fiber equipment out there but 100mbps is 100mbps right? Is fiber economical when you get into over 100mbps situations? thanks. Fiber currently allows gigabit speeds. But there are some companies offering gigabit over Cat5 cable (but the quality of the cable would have to be significantly greater than most Cat5 implementations...). For 100M Cat5 is what you want. Installing a 100baseT network is really easy, especially as most people don't need a dedicated 100M to their desktop so you just run two cables to each group of desks in an office (one spare just in case) and have a desktop switch. -- My current location - X marks the spot. X X X -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: fiber
On Thu, 27 Jul 2000, Catalin Ciocoiu wrote: Lenght of a BNC ethernet trunc can be 320m ! Width a good cable you can force the limit at 350m. Most 10mbs hubs have a bnc connextor width 180/320m switch ! Is this for thick Ethernet? You can get a link width 10Mb/s bandwidth. Other sollution is two etherent segment linked width a ethernet repeater. Other 10Mbs sollution is thin etnernet that support 500m/per segment. That sounds quite good. Better than WaveLAN unless you are running between buildings and don't want to risk interferance! Russell Coker
Re: qmailadmin 0.30
elbetech.at Hostmaster wrote: Hallo, has anyone a working Solution to compile, without errors, the qmailadmin under debian 2.2 For only working solution for me is to use the 0.25 version. I've tested the 0.26h and the 0.30 versions but I unable to compile them. Ciao, Guido. -- ++---+ | Guido Bozzetto | Office ph./fax:+39 0432 477588/486157 | L'avar al è chel | \/ I | E-mail::-) mailto:[EMAIL PROTECTED] | che si lambiche | OO like | Web: http://www.nauta.it/~bozzetto/ | a vivi puar | -- Linux | Talk:[EMAIL PROTECTED] | par muri sior ++---+
Re: Video Server....??
Hi! In my company, Dell's PowerEdge 6300 is used to stream video clips. They are connected to Fast Ethernet segments which is separate from employee's Fast Ethernet segment. In addition, a fiber optic backbone connected the Fast Ethernet segments up. Donald Szeto Senior Engineer Desiter.COM (HK) - Networking Department -Original Message- On Wed, Jul 26, 2000 at 09:24:18AM +0800, Donald Szeto wrote: Hi! Our school uses fiber optic backbones with Fast Ethernet segments and the Video Support Team had optimized the clips for better streaming without consuming much bandwidth. Sometimes, students do not need to play the video themselves, they can watch the movie from the projector :). what kind of server do you use for streaming, and is it available somewhere.. i need to build a system to stream a picture from the tv (yes, it's legal =) and my boss wanted sound too.. i've been trying to look at solutions like this.. but nothing proved good enough... (oh, and he is not willing to pay loads of money for this.. =( ) Regards, Sami haahtinen -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: fiber
Catalin Ciocoiu wrote: Lenght of a BNC ethernet trunc can be 320m ! Width a good cable you can force the limit at 350m. Most 10mbs hubs have a bnc connextor width 180/320m switch ! Be careful with this solution - it relies on the 2 locations being on the same power grid. If not you may run into some grounding problems. S. -- Simon Tennant, Web Team, Linuxcare, Inc. 415.577.6719 tel, 415.701.7457 fax pgp id: 05F76248FF62442C4D0010C09851C0746410974D Linuxcare. Support for the revolution.
web server suggestions
Hi all Sorry for this being so highly off-topic, forgive me; I need the infos. (It's just that debian lists are an excellent resort for information) I'd like some infos from people who've had experience with this: What web server software is in your opinion best for running on an NT machine? (Yes, NT) (How) does Apache run on NT? I've used Linux with Apache and that's always served my needs very well. Been *very* happy with it. The reason I'm posting this, though, is, that a friend of mine needs the infos, so I'll send any replies straight back to him. Again sorry for the OT-ness. Thanks tons in advance. Regards Sven
