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Install the Acronis BackUp Plugin on cPanel - Step by Step Process ?
This article covers method to install the Acronis BackUp Plugin on cPanel.
To install the Acronis Backup plugin for WHM and cPanel, run the following command:
sh <(curl -L https://download.acronis.com/ci/cpanel/stable/install_acronis_cpanel.sh || wget -O -https://download.acronis.com/ci/cpanel/stable/install_acronis_cpanel.sh)
This command runs the installation script.
How to Install the backup agent ?
To back up the Virtuozzo container, the backup agent must be installed on its host as described in the Installing the backup agent on Virtuozzo host section.
1.Log into WHM UI.
2.Click Plugins> AcronisBackup.
3. Specify the credentials of the account to which the machine should be assigned. Make sure that you specify the credentials of an account created within the customer group (Customer administrator, Unit administrator, or User). Do not specify partner administrator credentials.
4. Follow the installation wizard. During the installation, the software checks if the ports required for communication with the cloud are open.
If some of the ports are closed, the software shows numbers of these ports and the hostnames for which a port should be open.
Open the ports, close the wizard, and restart the installation.
Completing the installation may take several minutes. You can leave the page during this process.
The backup agent can also be installed by using the command line.
To uninstall the Acronis Backup plugin for WHM and cPanel, run the following command:
$ yum remove acronis-backup-cpanel
Removing the extension will also uninstall the backup agent from the cPanel server.
The backup accounts you created and the backed-up data will be left intact.
Dnsmasq DHCP Server in Proxmox – How to use for VMs IP ?
This article covers methods to install, configure and resolve matters relating to Dnsmasq DHCP Server in Proxmox. When creating the VM we just need to specify the MAC address for specific IP and than just use DHCP to get the assigned IP.
To Install the DHCP server, run the command:
$ apt install isc-dhcp-server
Apache Error: "semget: No space left on device" - Fix it Now ?
This article covers methods to resolve Apache Error: "semget: No space left on device". This error indicates that apache failed and will not start again, so check the error log If you see an error similar to the following, it could indicate that your server has run out of semaphores and apache cannot be started:
[emerg] (12)Cannot allocate memory: mod_fcgid: Create process manager error
[error] (28)No space left on device: Cannot create SSLMutex Configuration Failed
To solve this problem you can restart Apache, Postgres and other services that consumer many IPC resources or increase limit of the resources in the system using 'sysctl'. When you stop all services the semaphores and shared memory segments have to be removed, if not, and you still able to see them using 'ipcs' command, try to remove them manually using 'ipcrm' command.
1. For example to remove semaphore:
# ipcs -a
2. If this is a common problem for you, you may want to increase the semaphore limits on your VPS server. You can do that by adding the following to the /etc/sysctl.conf file:
# Increases the semaphore limits & extend Apache's uptime.
kernel.msgmni = 512
kernel.sem = 250 128000 32 512
3. Then load the new settings into the kernel:
sysctl -p
Exclude Files from Backups in cPanel - How to do it ?
This article covers how to set up both global and local exclude files. Basically, we would require to exclude certain files from backups in cPanel either for security purposes or to reduce the size of the backup file.
When backing up large accounts, it can be desirable to skip certain large directories or exclude files for security reasons. Whatever the reason, cPanel offers two methods for excluding files from the standard backup process.
To exclude files or directories from your user backups, perform either of the following actions:
- Exclude the files from all user's backups.
- Exclude the files from an individual user's backups.
For one cPanel user
Users or administrators can modify the user-level exclude file. /home/username/cpbackup-exclude.conf excludes files from a specific user's home directory.
$ nano /home/username/cpbackup-exclude.conf
# add new entries here
example/
dir/example.php
Exclude Files from Backups in DirectAdmin - How to do it ?
This article covers how to Exclude Files from Backups in DirectAdmin.
User ability to skip paths from their tar.gz backup files in DirectAdmin.
i. New optional file:
/home/username/.backup_exclude_paths
where User can add paths to this file that they wish to have skipped from their backup.
The format of the file must be relative to /home/user and should not include a "/home/user" prefix.
2. New default internal directadmin.conf setting:
allow_backup_exclude_path=1
can be disabled by setting it to 0 and restarting DA.
A sample line in the .backup_exclude_paths would look like:
domains/domain.com/awstats
so that the path:
/home/username/domains/domain.com/awstats
is skipped from the backup.
This will add:
--exclude-from=/home/username/.backup_exclude_paths
Just after the -C /home/username option in the creation of BOTH the home.tar.gz and the user's backup tar.gz.
So using the feature will truly exclude the path, regardless of if it's in /home/user/domains, or /home/user/*.
As you may have noticed, the option uses tar's exclude-file option.
This supports patterns, eg:
*.gz
So you have skip those types of files, regardless of what path they're under.
Monitoring Linux Using NCPA
This article covers how to go about setting up monitoring in Linux using NCPA. You will learn how to configure NCPA to monitor Linux.
NCPA is a cross-platform monitoring agent for Nagios Core and Nagios XI that runs on Windows, Linux/Unix, and Mac OS/X machines. Its features include both active and passive checks, remote management, and a local monitoring interface.
In Nagios XI wizards can be used to to perform configuration of hosts and services through the Web UI. Wizards take the complicated matter of creating hosts and services, defining configuration parameters, assigning contacts, contact groups, hostgroups, servicegroups, etc, into a easy steps form in the Nagios XI UI.
Wizards can also be easily added to Nagios XI through the Admin -> Manage Wizards menu to expand the capabilities of Nagios XI.
