Strange things sometimes happen,one of them is a rpm database got corrupted . This means that the computer tells you something is installed and it really is not. i personally encountered this few times before and usually this happens when the ssh session/connection to the server cut off(i used to ssh to the server , [...]
Sometime i wants to know who is login and when user login to my server but i don’t want to setup and run my own mail server, this can be done easily by using tcpwrapper and ssmtp , first make sure ssmtp is installed # dpkg -l|grep ssmtp iF ssmtp 2.64-4fakesync1 extremely simple MTA to [...]
Today i found this message in one of my server, although the server’s load is quite low. using dmesg , i kept getting this, and it kept coming ip_conntrack: table full, dropping packet I’d seen this message before, but I headed over to Red Hat’s site for more details. Generally, the ip_conntrack_max is set to [...]
——————- Reducing(Offline):: ——————- Scenario: -There is existing LVM partition 50GB in total and has been used up 5GB -We will reduce the LVM partition from 50GB to 10GB -We need to unmount the FS before we can proceed -Please do proper backup before proceed as there might be chances that you would lose your data [...]
We can log all the DNS queries , type this single command (as root) on your DNS server (Bind) ————- rndc querylog ————- once this done, all DNS queries will be logged in /var/log/messages, the results will be similar to Oct 24 03:01:43 ns1 named[30660]: client 200.23.242.196#35545: query: parentsascoaches.net IN MX Oct 24 03:01:43 ns1 [...]
Try these single and simple command from your mysql cli, to change mysql global parameter on the fly (it’s means no need to restart the service) mysql> set global max_connections=400; you can check the results using this command mysql> show global variables; always be reminded that parameter has been setup using above command will be [...]
i got that usb wifi adapter from my sis few months back, thanks sis , but i was figured it out how to make it works on my machine running centos 5.2, it’s working fine with windows based os Hmmmmm…from lsusb i got , it’s a ————————————————– Bus 001 Device 002: ID 148f:2570 Ralink Technology, [...]
Someday and somehow your Linux machine stuck and when you consoling that machine, there is kernel panic message appears on the screen, here’s little tips , by default the kernel will not reboot after a panic , but this option will cause a kernel reboot after ‘N’ seconds Tools required: -)Linux OS running on your [...]
On 10 Oct 2009, early morning , one of our server was not accessible while our monitoring system keeps altering us, looks like there was something gone wrong happening, yup i was right, called up DC guy and asked them to console in that server, they saw Kernel panic messages on console, yuck…., this server [...]
