Install vzdump using yum on CentOS

As some of you may already know, vzdump is not included in the openvz repository for CentOS. If you need to use vzdump, you have to download its source and compile it yourself, unless you’re already using some VPS control panel that has it bundled.

Luckily, for all those who don’t use control panels and don’t want to compile vzdump themselves, there’s a quick workaround. SolusVM includes it in its repository, which apparently can be used even if you don’t have SolusVM installed on that particular server.

iptables modules for OpenVZ kernel

This is my preferred list of modules for iptables on OpenVZ kernels (set in /etc/vz/vz.conf): ## IPv4 iptables kernel modules to be enabled in CTs by default IPTABLES=”ipt_REJECT ipt_tos ipt_TOS ipt_LOG ip_conntrack ipt_limit ipt_multiport iptable_filter iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_length ipt_state iptable_nat ip_nat_ftp ipt_owner ipt_REDIRECT” ## IPv4 iptables kernel modules …

Unable to login to FTP on CentOS 6 VPS with Virtualmin / ProFTPD?

Does the login to your newly installed CentOS 6 VPS using Virtualmin and ProFTPD fail?

Check your /var/log/secure for errors such as this :
proftpd: PAM unable to dlopen(/lib64/security/pam_stack.so): /lib64/security/pam_stack.so: cannot open shared object file: No such file or directory
proftpd: PAM adding faulty module: /lib64/security/pam_stack.so

If you are logging the above error your /etc/pam.d/proftpd was updated (incorrectly)…

Configure network connection via files in Linux

Setting your hostname, IP address, netmask, gateway, DNS server via files
It is sometimes helpful to know what is going on behind the scenes or if you want to modify the network configuration via changing files.
For example, assume you want to modify the network configuration by modifying files with the following…

How to Repair a Corrupt MBR and boot into Linux

There are times when you inadvertently overwrite your Master Boot Record. The end result being that you are unable to boot into Linux. This is especially true when you are dual booting between windows and Linux OSes. Once when I was working in Windows XP, I accidentally clicked the hibernate button instead of shutdown. And windows somehow overwrote my MBR which housed the GRUB boot loader. At such times, it pays to have this cool tip at hand…

Count occurences of character X in all files in current directory

If you ever need to count the occurences of a character in all (or some) files, this next series of commands would come in handy:

Replace X with the character in question. The command is all in one line. “ls” can be replaced with a more specific list (eg: …

How to install VMware Server 1.06 on Linux kernel 2.6.26

I updated my server’s operating system from Fedora Core 6 (on which VMware Server ran perfectly) to Fedora 8. Fedora 6 was running an older 2.6.25 (which VMware liked just fine), but Fedora 8 brought me the 2.6.26.6-49.fc8 kernel, which caused a lot of trouble.
After spending 5 hours looking everywhere for a solution (I even thought the newer v1.08 would work on this kernel – but it didn’t), I considered writing down what I did to finally get my virtual machines up and running: