Discuss July 2008

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Yaz and libyaz package for CentOS 5
by Siju George 10 Jul '08

10 Jul '08

Hi, Where do I get Yaz and libyaz package for CentOS 5? thanks Siju

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Bind update overwrites named.conf
by Chris Miller 10 Jul '08

10 Jul '08

I just had a customer's bind server lose all of it's local DNS records. Yum updated the bind packages this morning at ~6am, and replaced the original /etc/named.conf file, saving the old as named.conf.rpmsave. This seems like the opposite of what it should have done (i.e. save the new file as named.conf.rpmnew). There does not appear to be any difference between the originally shipped conf file and the new one, suggesting that the file should not have been replaced at all. Just wanted to through this out there in hopes it helps someone else before the phone starts ringing... CentOS release 4.6 (Final) Jul 09 05:59:25 Updated: bind-devel.i386 20:9.2.4-28.0.1.el4 Jul 09 05:59:29 Updated: bind-chroot.i386 20:9.2.4-28.0.1.el4 Chris

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rsh problems in CentOS 5.2 (was "cvs command failure on 5.2")
by MHR 10 Jul '08

10 Jul '08

Okay, I've narrowed the problem down quite a bit. As previously reported, in CentOS 5.2 I get this: $ cvs log Makefile poll: protocol failure in circuit setup cvs [log aborted]: end of file from server (consult above messages if any) Turns out this is a problem with rsh: $ rsh khan ls connect to address 10.24.15.48 port 544: Connection refused Trying krb4 rsh... connect to address 10.24.15.48 port 544: Connection refused trying normal rsh (/usr/bin/rsh) poll: protocol failure in circuit setup Now, if I just reomtely login to khan (our cvs server), I get this: [mrichter@sushi ~]$ khan connect to address 10.24.15.48 port 543: Connection refused Trying krb4 rlogin... connect to address 10.24.15.48 port 543: Connection refused trying normal rlogin (/usr/bin/rlogin) Last login: Fri Jul 4 18:19:01 from viper [mrichter@khan mrichter]$ Voila - I'm logged in. Also, if I try an rsh from another machine (viper - FC1), I get this: [mrichter@viper mrichter]$ rsh khan ls connect to address 10.24.15.48: Connection refused Trying krb4 rsh... connect to address 10.24.15.48: Connection refused trying normal rsh (/usr/bin/rsh) Desktop Documents Download Music Pictures Public Templates Videos bin lane608 rls_607 temp.xml So, what is it about rsh from CentOS 5.2 such that the kerberos certification destroys its chances of success? Alternative question: what do I need to tweak to make this work? Thanks. mhr PS: Google has lots of wrong answers on this, mostly really old and of no use at all.

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Need help with awk one-liner
by Sean Carolan 10 Jul '08

10 Jul '08

This awk command pulls URLs from an apache config file, where $x is the config filename. awk '/:8008\/root/ {printf $3 "\t"}' $x The URL that is output by the script looks something like this: ajpv12://hostname.network.company.com:8008/root Is there a way to alter the output so it only shows "hostname" by itself? Do I need to pipe this through awk again to clean it up?

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IPv6 static routing
by Robert Moskowitz 10 Jul '08

10 Jul '08

So I do not want to run radvd on my public subnet (between the gateway and firewall). I am trying to set up the firewall's public interface. For now in ifcfg-eth0 I have the lines: DEVICE=eth0 BOOTPROTO=static HWADDR=00:40:F4:05:A8:F1 IPV6INIT=yes IPV6_AUTOCONF=no IPV6ADDR="2607:F4B8:3:1:0:40:F405:A8F1" ONBOOT=yes And in network I have: NETWORKING=yes NETWORKING_IPV6=yes IPV6FORWARDING=yes IPV6_DEFAULTGW="2607:F4B8:3:1:50:BA42:8249%eth0" But when I restart network (service network restart) I get: Bringing up interface eth0: WARN : [ipv6_add_route] Unknown error [ OK ] and ip -6 route show dev eth0 generates: 2607:f4b8:3:1::/64 metric 256 expires 21333899sec mtu 1500 advmss 1440 hoplimit 4294967295 fe80::/64 metric 256 expires 21333899sec mtu 1500 advmss 1440 hoplimit 4294967295 What is missing? I am using http://www.tldp.org/HOWTO/Linux+IPv6-HOWTO/ for some help.

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How can I automate random bytes generation for CENTOS 5.2?
by Tolun ARDAHANLI 10 Jul '08

10 Jul '08

Hi; I want to automatize random bytes generation for gpg. Cause it takes too much time for creating a key. What should I do? I have Centos5.2+Atmail e-mail server. Thanks a lot... -- Tolun ARDAHANLI Bilgisayar Muhendisi E-posta:tolun.ardahanli@linux.org.tr<E-posta%3Atolun.ardahanli(a)linux.org.tr> Icq:326600 ---------------------------------------------------------------------------- Tolun ARDAHANLI Computer Engineer E-mail:tolun.ardahanli@linux.org.tr <E-mail%3Atolun.ardahanli(a)linux.org.tr> Icq:326600

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CentOS Patch for http://www.kb.cert.org/vuls/id/800113
by Sean Carolan 10 Jul '08

10 Jul '08

Will there be a BIND patch available for this vulnerability, for CentOS 3.9? http://www.kb.cert.org/vuls/id/800113

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can I use CentOS as a antivirus / spam filter / HTTP AV gateway?
by Rudi Ahlers 10 Jul '08

10 Jul '08

Hi all I've been thinking about using CentOS on a Dell R200 server and turn it into a firewall / network monitor / traffic shaper in our datacentre, instead of using a dedicated firewall device. One of the devices that I have been looking at, with my limited budget, is the D-Link DFL 860 - http://www.netdefend.eu/Product.aspx?m=15&ref=DFL-860 It provides AV, SPI, VPN, DOS, P2P, etc protection. Most of this can be done with Linux as well, but I'm not 100% sure about the AV part. How will I use / setup CentOS to check all traffic coming in & out (HTTP, SMTP, POP3, IMAP, etc) for virusses and clean them? We host both Windows & Linux servers, and I'm not too worried about the Linux servers, but Windows needs a lot of extra protection. -- Kind Regards Rudi Ahlers CEO, SoftDux Web: http://www.SoftDux.com Check out my technical blog, http://blog.softdux.com for Linux or other technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting stuff

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1st static IPv6 address
by Robert Moskowitz 10 Jul '08

10 Jul '08

My ISP assigned prefix is: 2607:F4B8:3::/48 So I am building my internal IPv6 firewall/router/ etc. I want to have a static IPv6 address on its eth0 so that I can create static v6 routes to it from the gateway. I add the following lines to ifcfg-eth0: HWADDR=00:40:F4:05:A8:F1 IPV6INIT=yes IPV6_AUTOCONF=no IPV6ADDR="2607:F4B8:3:1" if-up eth0 gets the error: Error: an inet prefix is expected rather than "2607:F4B8:3:1/64". ERROR : [ipv6_add_addr_on_device] Cannot add IPv6 address '2607:F4B8:3:1/64' on dev 'eth0' What is missing? Why is it not building an address of 2607:F4B8:3:1:0:40:F405:A8F1 ? I am reading: file:///usr/share/doc/initscripts-8.45.19.EL/sysconfig.txt for my 'inspiration'. Other sources are welcome... OH, /etc/sysconfig/network does have the line: NETWORKING_IPV6=yes

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what does "not found" mean in a DHCPRELEASE context?
by David Mackintosh 10 Jul '08

10 Jul '08

I have a CentOS 4.6 server running dhcpd. One of my client devices (a Panasonic KX-HCM280A camera) is trying to get a lease from that server. I can see the device accept a lease (it is a reservation), however it always releases the reservation after about 25 seconds: Jul 10 10:30:49 stargate dhcpd: DHCPDISCOVER from 00:80:f0:56:46:30 via eth0 Jul 10 10:30:49 stargate dhcpd: DHCPOFFER on 172.31.14.13 to 00:80:f0:56:46:30 via eth0 Jul 10 10:30:49 stargate dhcpd: DHCPREQUEST for 172.31.14.13 (172.31.0.1) from 00:80:f0:56:46:30 via eth0 Jul 10 10:30:49 stargate dhcpd: DHCPACK on 172.31.14.13 to 00:80:f0:56:46:30 via eth0 Jul 10 10:31:16 stargate dhcpd: DHCPRELEASE of 172.31.14.13 from 00:80:f0:56:46:30 via eth0 (not found) If I remove the reservation and reset the camera, it does the same thing with a dynamic lease; however in that case the message is Jul 3 09:48:05 stargate dhcpd: DHCPDISCOVER from 00:80:f0:56:46:30 via eth0 Jul 3 09:48:06 stargate dhcpd: DHCPOFFER on 172.31.9.91 to 00:80:f0:56:46:30 via eth0 Jul 3 09:48:06 stargate dhcpd: DHCPREQUEST for 172.31.9.91 (172.31.0.1) from 00:80:f0:56:46:30 via eth0 Jul 3 09:48:06 stargate dhcpd: DHCPACK on 172.31.9.91 to 00:80:f0:56:46:30 via eth0 Jul 3 09:48:19 stargate dhcpd: DHCPRELEASE of 172.31.9.91 from 00:80:f0:56:46:30 via eth0 (found) ...ie "(found)" instead of "(not found)". I should mention that I have several other cameras of the same type which are working, so this is most assuredly a problem with the camera itself, but I was still wondering: Does anyone know what dhcpd (or the device) is trying to tell me with this message? -- /\oo/\ / /()\ \ David Mackintosh | dave(a)xdroop.com | http://www.xdroop.com

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Discuss July 2008