Linux Administration

Nullsec posted on – November 29, 2014 at 7:53 pm regarding ProxyChains giving an error: ERROR: ld.so: object ‘libproxychains.so.3’ from LD_PRELOAD cannot be preloaded: ignored. Essentially, this might expose you. Following fix was also posted by NullSec, ‘Thank you‘. (I’ve only formatted his comment to make it more user-readable!) ProxyChains …

Forgetting root password is an hassle. We try to be vigilant with our security and set a complex root password. We also try not to login using directly into root account (in most production boxes) and use sudo instead. So it’s not very unlikely to loose your root password and …

Tried to install atop in one of the CentOS servers. Due to the fact this server is locked down, the install process failed. Next thing I know yum is giving me grief with the following error There are unfinished transactions remaining. You might consider running yum-complete-transaction first to finish them. …

Many Linux systems, servers and VPS’s run on low memory and over time you will see a degradation of speed and responsiveness. By default, Linux got excellent Memory Management and it knows when to clean up cache to free up enough Memory to execute the next command. However, saying that, …

bash history command is very useful. It gives you an complete view of what commands you ran. By default bash  historycommand will give you all your previous commands with Line numbers. It’s the default behavior. However when you’re trying to copy-paste those commands again, you have to manually remove those …