Upgrade CentOS

Benefits

• Obtain the CentOS security updates
• Patch recent vulnerabilities
• Patch SNMP core files

Applicable Products

• TMG800, TMG3200, TMG7800-CTRL
• Tdev Linux server with (CentOS, RedHat, etc) running Toolpack software

TelcoBridges repository

The operating OS (CentOS) upgrade is perform from a TelcoBridges copy of the official CentOS packages repository (http://repo.telcobridges.com). If your Tmedia unit or Linux server does not have access to Internet (or does not have DNS configured), you must configure CentOS update tools to use a local copy TelcoBridges repository.

Offline repository configuration

First, SSH to your unit do determine which version of the OS your system is using:

# cat /etc/redhat-release

CentOS release 5.11 (Final)

• Configure_Offline_Repository_CentOS5_A

# cat /etc/redhat-release

CentOS Linux release 7.2.1511 (Core)

• Configure_Offline_Repository_CentOS7_A

Update procedure

The operator can use one of the two methods available: GUI/WebPortal or command line interface.

WebPortal

To upgrade the CentOS to have the latest patches, follow this procedure from the web interface of the unit:

• Hosts -> Status -> TBxxxxxx -> Action -> Upgrade Linux Packages, then 'Apply Action':

When the upgrade is in progress, there is no status shown, and you will see the screen like this:

It may take a while 8-10 mins. You need to refresh the page until you see this:

Once complete, you need to reboot the host: Hosts -> Status -> TBxxxxxx -> Action -> Shutdown -> Reboot

Command line

Alternatively, you can ssh to the TMG and run the following command:

# yum update

Reboot the TMG unit

# reboot