How do I add a second IP range to a network?
Hi all I have a IP block working on my server. how do I add a new IP block? For example 192.200.234.128 with net mask 255.255.255.192 (what gives me 192.200.234.129-190) and I whant to add a second IP range 192.200.234.192 with net mask 255.255.255.192 I put it in the named.conf, and create a .IN-ADDR.ARPA) but it seams I forgot something. I apreciate any help. Thanx in advanced.
Re: How do I add a second IP range to a network?
At 11:47 PM 4/7/2000 -0300, you wrote: Hi all I have a IP block working on my server. how do I add a new IP block? For example 192.200.234.128 with net mask 255.255.255.192 (what gives me 192.200.234.129-190) and I whant to add a second IP range 192.200.234.192 with net mask 255.255.255.192 I put it in the named.conf, and create a .IN-ADDR.ARPA) but it seams I forgot something. I was thinking about this recently, and here's what I reasoned (but have never put to the test). Due to the way that reverse DNS works, what would have to happen is whatever body gave you the address space would have to actually create an entry in their server for each address - yes, 62 entries, that delegates DNS for those addresses to your DNS server. Either that or they just have to provide the reverse DNS for you. As for how to handle secondary DNS, I'm still scratching my head trying to work that one out. If I'm completely mistaken, I'd love to be corrected (but not flamed :). Thanks, Shawn
Re: How do I add a second IP range to a network?
On Fri, Apr 07, 2000 at 10:09:53PM -0600, elyograg wrote: I have a IP block working on my server. how do I add a new IP block? For example 192.200.234.128 with net mask 255.255.255.192 (what gives me 192.200.234.129-190) and I whant to add a second IP range 192.200.234.192 with net mask 255.255.255.192 I put it in the named.conf, and create a .IN-ADDR.ARPA) but it seams I forgot something. I was thinking about this recently, and here's what I reasoned (but have never put to the test). Due to the way that reverse DNS works, what would have to happen is whatever body gave you the address space would have to actually create an entry in their server for each address - yes, 62 entries, that delegates DNS for those addresses to your DNS server. Either that or they just have to provide the reverse DNS for you. As for how to handle secondary DNS, I'm still scratching my head trying to work that one out. If I'm completely mistaken, I'd love to be corrected (but not flamed :). Reverse DNS will be provided by the organization that delegated the subnet. The x.in-addr.arpa resolution is directed to whoever obtained the block. If reverse DNS for a particular block should point elsewhere, it's a pain. It's simpler to inform your ISP (or whoever) of the PTR entries desired for reverse resolution. Forward resolution can be easily pointed at any machine you wish, which you specify when registering a domain. Your ISP (or whoever) should be able to pull zone transfers from your DNS server if you wish to have them provide secondary lookup services. If this is not available, check out: http://www.granitecanyon.com . If you are referring on how to join two IPv4 subnets into a single network, You have a few options: 1. You can multihome a Linux box and turn it into a router by adding: - echo 1 /proc/sys/net/ipv4/ip_forward - ...to your /etc/init.d/network to have it toss the packets for you. Your ISP (or whoever) will need to setup the routing at their end to reflect this. 2. Change your subnet mask and adjust the upstream router to reflect the larger subnet. You are using contiguous networks, so this shouldn't be a problem. Maybe I'm not understanding your question. It wasn't too clear what exactly you were trying to do. -- Kevin Blackham 801-539-0852 XMission Internet877-XMISSION [EMAIL PROTECTED]877-964-7746 http://www.xmission.com/help
Re: Virus Scanning on Mailserver
Fraser Campbell wrote: A recent incident with Pretty Park in our building caused me much amusement and prompted our LAN administrator to ask if I can perform any virus scanning on the mailserver. Do there exist any solutions to scan email for viruses where the mailserver is a Linux box? Ideally I would like all locally delivered emails to be scanned before delivery. Our current mailserver is running sendmail 8.9.3 but I plan to upgrade to exim soon. Is there a site with a comparison of sendmail, exim, qmail performances? -- -o) Cédric Gavage [EMAIL PROTECTED] | /\\ www: http://linuxbe.org| _\_v homepage: http://cedric.gavage.com | ---'
Re: System clock
At 12:31 AM 4/8/00 +1000, Doug Bean Mr Bean's Internet wrote: My timezone is set correctly. I just need to sync UTC time with local time. Set your hardware clock to GMT. Then set your timezone to GMT. Your system will then be in a +000 offset. +---+ |-=I T ' S P R I N C I P L E T H A T C O U N T S=- | |=- -=ALAN KEYES FOR PRESIDENT=- -=| | Balanced Budgets Personal Freedoms Morality Lower Tax | |=-- http://www.Keyes2000.com. --=| ++
Re: How do I add a second IP range to a network?
At 10:09 PM 4/7/00 -0600, elyograg wrote: have to happen is whatever body gave you the address space would have to actually create an entry in their server for each address - yes, 62 entries, that delegates DNS for those addresses to your DNS server. Either Actually, your upstream provider can delegate the reverse DNS authority to you. They create an entry for you in ARIN (or wherever) and any reverse lookups will get funneled to your server. This is how I had it set up with my ISP. that or they just have to provide the reverse DNS for you. Major pain right there. I think the original poster wanted to know how to make his box listen to two subnets on the same interface. Can you restate your question? And give us a little more information on what you're trying to do. +---+ |-=I T ' S P R I N C I P L E T H A T C O U N T S=- | |=- -=ALAN KEYES FOR PRESIDENT=- -=| | Balanced Budgets Personal Freedoms Morality Lower Tax | |=-- http://www.Keyes2000.com. --=| ++
Re: Email confirmation...
At 04:27 PM 4/5/00 +, [EMAIL PROTECTED] wrote: Is there a program or a script which sends a info to the sender that the email was successfully downloaded from the server by the receiver? Hmm, I don't think so unless you can hack your POP server. You would have to modify it so it remembered who to email when a user downloaded or viewed a certain message. +---+ |-=I T ' S P R I N C I P L E T H A T C O U N T S=- | |=- -=ALAN KEYES FOR PRESIDENT=- -=| | Balanced Budgets Personal Freedoms Morality Lower Tax | |=-- http://www.Keyes2000.com. --=| ++
Re: Ethernet card recommendations?
Speaking of the SMC cards, I ran SMC EtherEZ's 10BaseT on ISA and got some weird behaviour from time to time. When I first set it up, things were great. Getting 7Mbps ftp transfers. But this began to decline and then finally flucuate. Before I turned off the network it was varying from 2-4Mbps. But if you want serious performance go with gigabit over fiber. +---+ |-=I T ' S P R I N C I P L E T H A T C O U N T S=- | |=- -=ALAN KEYES FOR PRESIDENT=- -=| | Balanced Budgets Personal Freedoms Morality Lower Tax | |=-- http://www.Keyes2000.com. --=| ++
Hardware RAID
I've been looking through kernel readme files, and trying to find a hardware RAID solution that will run under Debian. It seems that all of the RAID hardware that is supported in the 2.2 kernel is either very very expensive, or impossible to find. The controllers that are affordable, aren't supported. I did briefly look at the 2.3 kernel, but there didn't seem to be any additional support. We're planning to go with 5-7 U2W drives in a level 5 array, probably sticking with 7200 RPM. The 160Mb standard on 10,000 RPM drives would be very nice, but the price increases are staggering. We'll try to find the current pricing sweet spot and purchase drives at that capacity. We don't need the full redundant power, hot swappable setup - our concern is speed and reliability. If we have to take it down because of a hardware failure, we're OK with that. :) Does anyone have any recommendations for a hardware RAID controller with a good combination of price and Linux support, and at least one supplier who carries it? I know I can do software RAID, and this idea hasn't been completely discounted, but I'm very interested in the potential for just letting the hardware take care of it. The only case I know of with software RAID (level 1) was difficult to work with, as it was extremely slow to fsck/rebuild if there were any problems. Anyone have any other horror or success stories with either hardware or software RAID to share? If we go the software route, would there be any issue with simply getting something like the Adaptec 2940U2W? Any other solid recommendations, and reasoning to support the choice? Thanks, Shawn
Re: Hardware RAID
On Sat, Apr 08, 2000 at 08:15:13AM -0600, elyograg wrote: Does anyone have any recommendations for a hardware RAID controller with a good combination of price and Linux support, and at least one supplier who carries it? http://www.tdl.com/~netex - We got our DAC1164 from there, works under the DAC960 driver (Mylex). There are also other options. I would recommend the DAC1164 if you can afford it (233MHz i960), or the DAC960. -- Kevin Blackham 801-539-0852 XMission Internet877-XMISSION [EMAIL PROTECTED]877-964-7746 http://www.xmission.com/help
Re: Ethernet card recommendations?
On Sat, 8 Apr 2000, Chris Wagner wrote: Speaking of the SMC cards, I ran SMC EtherEZ's 10BaseT on ISA and got some weird behaviour from time to time. When I first set it up, things were great. Getting 7Mbps ftp transfers. But this began to decline and then finally flucuate. Before I turned off the network it was varying from 2-4Mbps. Wow, I thought we were the only ones who experienced that problem. I had assumed it was a bad card because we only had 2, one of which just stopped working one day, and the other started to have the problem you describe. That was about a year or so ago, maybe a little longer. Unfortunately, I can't say if the card did it when initially used in the machine, as it was built and in use before I started working here. I had tried using a different kernel, or different driver (at first, that seemed to have made a difference, I think we used the 8309 driver originally and switched to a different driver, don't remember offhand because it was a while ago, but after a while the same problem showed itself). We eventually shelved the card and just replaced it with a 3com Vortex and have been trouble-free ever since. I don't know if you noticed this, but the transfer problems seemed to be one-way, outgoing. Incoming transfers occured at the proper speed, but outgoing was extremely slow. -Leigh --- Leigh Koven CyberComm Online Services [EMAIL PROTECTED] http://www.cybercomm.net/ http://www.thegovernment.net/(732) 818- Every new beginning comes from some other beginning's end - Semisonic
Re: System clock
On Sat, 8 Apr 2000, Doug Bean Mr Bean's Internet wrote: My timezone is set correctly. I just need to sync UTC time with local time. Ahem. Had you ever thought of moving to London? -- Martin Wheeler - StarTEXT - Glastonbury - BA6 9PH - England [1] [EMAIL PROTECTED] http://www.startext.co.uk/
Re: System clock
Is this what you need? mail:~# /usr/sbin/rdate time.nist.gov Sat Apr 8 16:02:16 2000 is how I sync my clock(s). Actually I sync one that way and the rest sync off of that one. I am in the Midwest in the USA CDT and system time gets synced with that command. I just realized noone else tossed this out as a solution. Be aware that a drastic change in system time might cause some strange crond activity following a sync. $.02 Tom
