The Zscaler-hosted repository provides Long-Term Support (LTS) for CentOS 7 and includes security patches for critical CVEs affecting the operating system.

Zscaler will end support of the CentOS 7 LTS repository after the posted End-of-Support (EOS) of Private Applications for CentOS 7.

To configure CentOS 7 for LTS:

1. (Optional) If it doesn't already exist, enter the following content under /etc/yum.repos.d/zscaler.repo:

[zscaler]
name=Zscaler Private Access Repository
baseurl=https://yum.private.zscaler.com/yum/el7
enabled=1
gpgcheck=1
gpgkey=https://yum.private.zscaler.com/gpg

2. Enter the following content under /etc/yum.repos.d/centos-longterm.repo:

[centos-7-for-x86_64-baseos-eus-rpms]
name=CentOS 7 for x86_64 EUS RPMS
gpgkey=https://os-updates-eus.private.zscaler.com/centos-mirror/RPM-GPG-KEY-CENTOS-7-BASE-EUS
gpgcheck=1
enabled=0
baseurl=https://os-updates-eus.private.zscaler.com/centos-mirror/centos-7-for-x86_64-baseos-eus-rpms

3. Disable all other repositories using the following command:

$ yum-config-manager --disable \*

4. Enable the Zscaler repository using the following command:

$ yum-config-manager --enable zscaler

5. Enable the CentOS 7 LTS repository using the following command:

$ yum-config-manager --enable centos-7-for-x86_64-baseos-eus-rpms

6. Verify that only the Zscaler repository and the CentOS 7 LTS repository exist using the following command:

$ yum repolist

7. Perform a yum update using the following command:

$ yum update

The steps to configure CentOS7 for LTS apply to both App Connectors and Private Service Edges.