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Install and Configure SNMP on RHEL/CentOS/Fedora - How to do it ?
This article covers how to install and configure SNMP on RHEL. SNMP (Simple Network Management Protocol) is widely used for monitoring and central management purposes.
To Install SNMPd Agent on Ubuntu Server:
1. Type the following commands as root, then click Enter:
$ sudo apt-get update
$ sudo apt-get install snmp snmp-mibs-downloader
$ sudo apt-get update
$ sudo apt-get install snmpd
2. You might also need to execute:
$ sudo download-mibs
SNMPd Configuration
The snmpd daemon must be configured to work with Atera. The configuration file is located at "/etc/snmp/snmpd.conf".
Make sure you are editing the snmpd.conf file and not the snmp.conf file.
Time Based Temporary Group Membership in Active Directory on Windows
Basically, Temporary Group Membership (Time Based) is the version of Active Directory in Windows Server 2016 introduces an interesting feature that allows you to temporarily add a user to an AD security group. In order to use the Temporary Group Membership, you need to enable the Privileged Access Management Feature in your Active Directory forest. Like with AD Recycle Bin (which allows you to recover deleted objects), you cannot disable PAM after it has been enabled.
Create New Destinations for JetBackup
This article covers how to create New Destinations for JetBackup. Basically, clients choose to store at least one copy of backups locally and additional copies in at least one or more remote destinations. Remote destinations are usually slower than local destinations to backup and restore from due to bandwidth requirements. With this in consideration, many clients choose to store at least one copy of backups locally and additional copies in at least one or more remote destinations.
Whatever backup destination option(s) you choose, please make sure that your destination path is secure and has the appropriate privileges.
How To Secure Local Backup Storage ?
Prior to adding a destination to JetBackup, we advise securing the backup directory, so that only the allowed users can access that folder.
In order to do that, please connect to the destination via console/GUI, and make the directory in which you want to store your backups.
For example:
$ mkdir [-p] /mnt/backup_vol/jetbackup
Then we advise securing that destination so only one user can access it's content (except root):
$ useradd <jetbackup>
$ chown jetbackup:jetbackup /mnt/backup_vol/jetbackup
$ chmod 700 /mnt/backup_vol/jetbackup
Right now only two users that can access this directory are root and jetbackup.
Please search online, how to secure a backup folder for your particular file system (EXT, NTFS, FAT, etc..) on your system (Windows, Linux, macOS, BSD, etc..)
Enable Firewall On AlmaLinux - How to implement this ?
This article covers how to enable Firewall On AlmaLinux. Basically, we can allow certain ports through the firewall, which lets incoming connections reach our services.
To open the port for HTTP to the public zone, run the command:
# firewall-cmd --zone=public --add-service=http --permanent
To Allow DNS through firewall, run the command:
# firewall-cmd --zone=public --add-service=dns --permanent
Allow PostgreSQL through firewall, run the command:
# firewall-cmd --zone=public --add-service=postgresql --permanent
Allow telnet through firewall, run the command:
# firewall-cmd --zone=public --add-service=telnet --permanent
"403 forbidden" error in phppgadmin - Fix it Now ?
This article covers methods to tackle "403 forbidden" error messages in phpPgAdmin. Basically, the "Forbidden" error happens while accessing phpPgAdmin when permissions in the phpPgAdmin configuration file are not intact.
To resolve 403 forbidden error, In the Apache configuration, simply replace:
<Directory /usr/share/phppgadmin>
DirectoryIndex index.php
Order deny,allow
Allow from all
</Directory>
With:
<Directory /usr/share/phppgadmin>
Require all granted
</Directory>
Add Windows Disk Usage Checks In Nagios
This article covers how to monitor additional drives on a Windows client. To install Nagios monitoring agent, NSClient++, on a target Microsoft Windows desktop or server for the purposes of monitoring that machine with Nagios XI. This allows organizations to monitor vital metrics and ensure that a specific Windows desktop machine or server is functioning properly.
To access CCM:
- When hovering the Configure button in the top menu bar you can select Core Config Manager.
- On the Configure tab you can select Core Config Manager from the left pane or from the main screen.
