Denie's Tech Blog

echo “NETWORKING_IPV6=no” >> /etc/sysconfig/network
echo “alias ipv6 off” >> /etc/modprobe.conf
echo “alias net-pf-10 off” >> /etc/modprobe.conf
reboot
# ifconfig
eth1      Link encap:Ethernet  HWaddr 00:1C:F0:BB:A7:28
inet addr:10.10.10.11  Bcast:10.10.10.255  Mask:255.255.255.0
inet6 addr: fe80::21c:f0ff:febb:a728/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:470449435 errors:1 dropped:0 overruns:0 frame:0
TX packets:464084402 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2563674692 (2.3 GiB)  TX bytes:2243518951 (2.0 GiB)
Interrupt:225 Base address:0×2800
Don’t really [...]

Posted on July 19th, 2010 by Denie
Filed under: BASH, CentOS, Networking, Tutorials, tips | No Comments »

0) Backup your database.
You should probably be doing this already.  Now’s a good time to make sure that your backups ran.

1) Create the script.
You’ll need the correct permissions to query the database. Here’s the command.  Be sure to change <DATABASE_NAME> as it fits.
# mysql -p -e “show tables in <DATABASE_NAME>;” | \
tail –lines=+2 | [...]

Posted on July 11th, 2010 by Denie
Filed under: BASH, CentOS, Linux, MySQL, Tutorials | 2 Comments »

This is a quick walk through on how to set up domain keys on Centos 5 using sendmail. It should also be very similar for Redhat or Fedora.

Domainkeys is a method mostly used by yahoo to verify that the sender of an email is valid. I did notice that gmail changes the domainkeys header line [...]

Posted on March 9th, 2010 by Denie
Filed under: BASH, CentOS, Linux, Sendmail, Tutorials | No Comments »