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OpenVZ is a container based, OS level virtualization technique for Linux. OpenVZ creates multiple secure, isolated Linux containers (otherwise known as VEs or VPSs) on a single physical server. Each container performs and executes exactly like a stand-alone server. These…
How to disable SSH login as root user – PermitRootLogin? PermitRootLogin – is an important directive in SSH configuration file to control the ssh login as root user. You can enable / disable root login access using this directive in…
7 plus head command switches with example in Unix/Linux The head command By default, the head command prints the first 10 lines from the file which is given followed by the head command. In the case of more than one…
10+ useful tail command’s switches with example – Unix/Linux The tail command By default, the tail command prints the last 10 lines from the file which is given followed by the tail command. In the case of more than one…
How to install iftop on Unix/Linux server? The command “iftop” is using for bandwidth (BW) monitoring on a server. It is simple to monitor a server BW with iftop command. You can analyse the incoming and outgoing packets using iftop…
A short note on inode number – Linux/Unix Inode number in Linux. It’s simply a reference (index) about the file and directory on the System. This is an entry in Inode table. This data structure uses to represent a file…
In some high load situations, we need to find out the resource consumption of each users on the server to figure out the exact issue. There are a lot of options/commands available in Linux to find the same. Normally, we…