Discuss September 2011

discuss@lists.centos.org

268 participants
252 discussions

Centos VPS Kernel 2.6.35.4 & 'string-less' IP tables
by Always Learning 01 Sep '11

01 Sep '11

On a VPS I wanted to add to IP tables:- iptables -A XXXX -p tcp -m string --algo bm --string 'login' -j DROP I got: iptables: Unknown error 18446744073709551615 uname -a = 2.6.35.4 #2 (don't know how this got installed) lsmod | grep ipt = ipt_LOG 5419 2 yum upgrade iptables* = nothing to install. --------------------------------------- On a standalone server (C 5.6) iptables -A XXXX -p tcp -m string --algo bm --string 'login' -j DROP is accepted. uname -a = 2.6.18-274.el5 #1 lsmod | grep ipt = ipt_LOG 39617 1 iptable_filter 36161 1 ip_tables 55457 1 iptable_filter x_tables 50505 6 xt_string,xt_state,ipt_LOG,xt_tcpudp,ip_tables,ip6_tables ------------------------------------------------ Appreciate suggestions on how to get kernel 2.6.35.4 to install the whole IP tables package, especially the STRING and RECENT options (in -m). Thank you. Paul.

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Help integrating CentOS 6 with existing network login infrastructure
by Alfred von Campe 01 Sep '11

01 Sep '11

I've updated my kickstart configuration files to work with CentOS 6 and am most of the way there integrating a CentOS 6 system into our LDAP/NIS environment. My authconfig line in the kickstart file is as follows: authconfig --enablemd5 --passalgo=sha512 --enablenis --nisdomain=XXX --nisserver=nis.XXX.com --useshadow --enablekrb5 --krb5realm=XXX.COM --krb5kdc=ldap.XXX.com --krb5adminserver=ldap.XXX.com This is virtually identical to the authconfig line I was using in CentOS 5. My issue is that users cannot log in with their network (NIS) usernames and passwords. If I log in as root, I can do a "su - username" and get the user's automounted home directory with the correct uid/gid, but if I try to log in as the user, or do a "su - username" as a non-root user and have to enter the password, authentication always fails. The entries in /var/log/secure just say "su: pam_unix(su-l:auth): authentication failure". I'm not a pam expert and don't know how to debug this. Anyone else run into this and/or know what might be the problem? This works just fine in CentOS 5. Alfred

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Discuss September 2011