By default, When you give the Manual IP address in the Centos and after every restart it will deactivate the network interface and you have to activate the network connection manually after every reboot of the system. The reason it happens is that you have not configured the onboot system. Now let’s see, How you can do that… Read More »
if you want to check the uptime of your Linux server then there are a few commands which you can use effectively for collecting this information on system uptime. The first command which I prefer to use is uptime. Let’s look at the output given below. The second command is Top command. The third one is W Command.
The ping command is one of the important network troubleshooting tools to test reachability between the source and destination. Timestamp ping is a great tool for troubleshooting the network because It will give you the ping report along with the time frame so that you can identify what was the issue at that particular time frame. in this… Read More »
It’s really funny to degrade your network performance by yourself after adding a higher delay and packet loss on the link. Even 2 servers are directly connected with a cable within a 2-meter distance but still, you can add the delay or packet loss like they are 2000km apart from each other. To edit the network or link… Read More »
1-nmtui & nmcli commands. The Nmcli and Nmtui commands are used to configure network settings and also to manage network devices for creating, editing, and deleting the network connections in Cent OS. [root@localhost ~]# nmtui//The above command will open a GUI for you to edit the network connections.[root@localhost ~]# nmclieno2: connected to eno2 2-ARP Table If you want… Read More »
1-The below command will show you ,How much RAM is installed in your computer. 2-Free command will show you the total free memory amount, physically used and swap memory. 3-The top command is used to display memory and buffers information. 4-The vmstat command is used to see the memory statistics in which the user can view some additional… Read More »
1-The uname -a will show you the system name and architecture of the machine ,network Host name etc .. 2-The lscpu command will give you the information about the cpu and processing units. 3-lshw -short command you can use for more information.
1-This Command cat /etc/os-release will show you all the information of your OS. 2-hostnamectl is a command which you can use to find your CentOS branch. 3-You can use a command cat /etc/centos-release to see the centos release