Linux

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. …

Data recovery is the process of salvaging and handling the data through the data from damaged, failed, corrupted, or inaccessible secondary storage media when it cannot be accessed normally. Often the data are being salvaged from storage media such as internal or external hard disk drives, solid-state drives (SSD), USB …

This is an unusual situation and a misconfiguration on DNS servers that can be exploited using a simple AAAA DNS query. This causes a localized Denial-of-service situation where users behind a specific resolver will get: Error: Unable to determine IP address from host name www.somevulnerablesite.com The DNS server returned: Name …

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, …