# exim -bpc
# exim -bp
# exim -bp | exiqsumm
# exiwhat
# exim -bh ipaddress
# exim -bP
You can use the slow query log to help determine which database queries take a long time to run. However, the slow queries can affect database performance and overall server performance.
Follow below steps to enable the
# Login to SSH shell with root user
# vi /etc/my.
# Add below lines under the [mysqld] section:
slow_query_log = 1
log-slow-queries = /var/log/mysql-slow.log
long_query_time = 2
Note: In MySQL 5.7, the variable log-slow-queries is deprecated so use slow_query_log_file instead of log-slow-queries .
# Save and close /etc/my.cnf file.
# touch /var/log/mysql-slow.log
# chown mysql:mysql /var/log/mysql-slow.log
# service
You can test your log file is working by typing
# tail -t /var/log/mysql-slow.log
Warnings:
To harden your cPanel system’s kernel, log in to your server as the root user via SSH and perform the following steps:
# cd /etc/yum.repos.d/
# wget https://securedownloads.cpanel.net/cPkernel/cPkernel.repo
# yum -y update kernel
After you update the kernel, you must restart the system to complete the kernel update. To reboot the server, run reboot
After you reboot the server, verify that the cPanel Hardened Kernel update succeeded with below command :
# uname -r
If the command’s output includes cpanel in the returned value, you successfully updated the kernel.
On cPanel server, “mod_userdir” (WHM >> Home >> Security Center >> Apache mod_userdir Tweak) allows you to access
However, some sites will not work with a temporary URL like
For those sites, you can configure your
Follow below steps to modify the “hosts” file on a Windows® 8 or Windows® 10 system :
1. On your keyboard, type Win+X on the keyboard, or click the windows icon in the lower-left corner of your desktop interface to to open the Start menu.
2. Enter Notepad in the search text box.
3. Right-click Notepad and select Run as Administrator.
4. From the Notepad , open the following file:C:\Windows\System32\Drivers\etc\hosts
5. Add the destination server’s IP address and domain name under the latest entry in the file, for example:
127.0.0.1 localhost localhost.localdomain localhost4
1.2.3.4 example.com
1.2.3.4 www.example.com
1.2.3.4 blog.example.com
Note:
In this example, 1.2.3.4 represents the destination server’s IP address, blog.example.com
6. Save your changes.
7. Reload your web browser for the changes to take effect.
To modify the “hosts" file on a Windows® 7 or Windows Vista® system, perform the following steps:
127.0.0.1 localhost localhost.localdomain localhost4
1.2.3.4 example.com
1.2.3.4 www.example.com
1.2.3.4 blog.example.com
Note: In this example, 1.2.3.4 represents the destination server’s IP address, and blog.example.com represents the domain name.
6. Save your changes.
If there is a high load on your server and you need to find out exact processes & users are consuming your server resources.
In such
Here are some useful commands :
# ps -e -o pcpu,pid,user,args|sort -k1 -nr|head -10
# ps -auxf|sort -nr -k3|head -10
# ps -e -o pmem,pid,user,args|sort -k1 -nr|head -10
# ps -auxf|sort -nr -k4|head -10
# ps -U user-name -u user-name u
Or
# ps -e -o pid,user,args|grep $username
In WHM, you can change the default PHP version through Multi-PHP Manager.
However, if you want to change the global default PHP version through command line you can follow below steps :
To display the current default PHP version :
# /usr/local/cpanel/bin/rebuild_phpconf –current
Above command is showing PHP 5.6 as default
# /usr/local/cpanel/bin/rebuild_phpconf –default=ea-php70
cPanel / WHM allows you to setup Security Policies for cPanel/whm login page.
If you have configured Security Policies with security questions and you forgot it’s answers, you will not able to login to cPanel / WHM.
Please perform the following steps to disable security questions via the command line :
root user./var/cpanel/cpanel.config file in your preferred text editor.SecurityPolicy::SourceIPCheck option to 0./scripts/restartsrv cpanel command to restart cPanel & WHM service.
cPanel allows you to automatically compress website content when visitors access your website.
Your system administrator must enable the mod_deflate Apache module for this interface to appear in cPanel.
# Login to cPanel account
# You will get “Optimize Website” option under “Software” on your cPanel page.
# To disable compression of your website’s content, perform the following steps:
Select Disabled.
Click Update Settings.
# To compress all of your website’s content, perform the following steps:
Select Compress All Content.
Click Update Settings.
# To specify a list of types of content to compress, perform the following steps:
Select the Compress the specified MIME types option.
In the MIME Types text box, enter a space-separated list of the types of content that you wish to compress (for example,
text/html text/plain text/xml).
Click Update Settings.
By default, LFD sends a lot of alerts for all users/processes/activities.
We can disable LFD alerts for a specific user.
# Login to shell with root user
# We need to findout the UID (User ID) of that user
# You can check the UID information from /etc/passwd file or from the CLI by using the command “id.
# grep -i nick /etc/passwd nick:x:754:754:nick:/:/sbin/nologin
# id -u nick 754
# Now open /etc/csf/csf.uidignore file
# Add the UID into /etc/csf/csf.uidignore file
# Restart CSF and LFD.
csf -r
# /etc/init.d/lfd restart