A chronological documentation test project, nothing serious, really!
First you remove this line from /etc/modprobe.conf if this line exists. alias net-pf-10 ipv6 Add the following line to /etc/modprobe.conf alias net-pf-10 off Reboot the system. IPv6 is now disabled. To re-enable IPv6, remove the alias net-pf-10 off line from /etc/modprobe.conf and reboot the machine. I’ve also made a post about how to disable IPv6 […]
Please note that you have to be the root user to use this command because it puts the network card in promiscuous mode. # tcpdump -i eth0 -A -s 0 udp port 1514 and host 192.168.0.1 The example above command listens on port 1514 which is the port ossec-hids uses on its secure communication between […]
Query caching is a way to increase the performance of mysql by caching database queries. It’s quite easy to do and only requires to edit one file, in Debian it’s called /etc/mysql/my.cnf Add the following lines in the mysqld section [mysqld] query-cache-type = 1 query-cache-size = 10M restart the mysql daemon # /etc/init.d/mysql restart Verify […]
# date -d @1221256800 “+%Y-%m-%d %T” 2008-09-13 00:00:00 Convert a date (YYYYMMDD) to unix timestamp # date -d “20080913” +%s 1221256800
This post describes how to disable IPv6 on a Redhat (RHEL5) installation. I haven’t had the time to test it on other version of Redhat. Edit /etc/sysconfig/network and change NETWORKING_IPV6=no Edit /etc/modprobe.conf and add these lines alias net-pf-10 off alias ipv6 off Stop the ipv6tables service # service ip6tables stop Disable the ipv6tables service # […]