5 Basic Linux SSH Client Commands

Let us review the following 5 basic command line usage of the ssh client. Identify SSH client version Login to remote host Transfer Files to/from remote host Debug SSH client connection SSH escape character usage: (Toggle SSH session, SSH session statistics etc.) 1. SSH Client Version: Sometimes it may be necessary to identify the SSH client that you are currently …

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WHM/Cpanel Increase The Size Of /tmp (/usr/tmpDSK) Partition

You may have noticed that cPanel’s default partition size for /tmp is 512 MB, which in some cases can be way too small. And sometime you probably get this report email: Drive Critical: /usr/tmpDSK (/tmp) is 100% full Although cPanel automatically deletes the unused files, the /tmp would be getting full very quickly on a busy server. The /tmp partition …

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Install nginx as reverse proxy in cPanel

The web-hosting control panel’s default web-server is Apache. cPanel/WHM doesn’t have native support on Nginx, but we can install and configure it so that it will improve the server performance. Why run Apache and Nginx together? Is there any advantage by using Nginx as reverse proxy on Cpanel? Both Apache and Nginx are powerful and effective web-servers. Apache is the topmost webserver …

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HowTo: Linux List Disk Partitions Command

How do I list all hard disk partitions under Linux operating systems? Usually, your hard disk drive divided into one or more logical disks called partitions. This division is described in the partition table found in sector 0 of the hard disk. The device is usually /dev/sda, /dev/sdb or so. A device name refers to the entire disk and the …

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Linux / UNIX – Display the permissions of a file

Q. How do I list or display the permission of a file using ssh? I don’t have GUI installed on a remote Linux computer. A.You need to use ls command with -l option. File access permissions are displayed in the first column of the output, after the character for file type. ls command List information about the FILEs. If no argument …

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Find out the spam mailing script’s location – Exim

The Exim mail server has a lot of options/commands to find out the details of spammers easily from the command line. Click this link “Spam Check” to get more ideas. We can find out the mail queue details, spam mail sender details, spam mail counts etc from the link I mentioned above. Here is a script/piped-command to find out the …

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List of cPanel Default Open Ports

This is a listing of all default open ports in cPanel server. You must open all of these ports in your server firewall to run the cPanel perfectly. These default ports are configured as opened in the firewall like CSF for a cPanel server. 20 FTP 21 FTP 22 SSH 37 rdate 25 SMTP 26 SMTP 110 POP3 143 IMAP4 465 SMTP TLS/SSL …

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