Install, upgrade, and downgrade 编辑

Install and upgrade

How to download a specific Citrix ADC release build package?

For information on downloading a specific Citrix ADC release build package, see Download a Citrix ADC release package.

How to upgrade the system software of a Citrix ADC appliance?

For information on upgrading the system software of a Citrix ADC appliance, see Upgrade a Citrix ADC standalone appliance.

Where do I find the release notes for a Citrix ADC release build?

The release notes document for a Citrix ADC release build lists the following for the release build:

• Enhancements
• Fixed issues
• Known issues

The release notes document for a Citrix ADC release build is found at the following locations:

• Citrix ADC firmware or virtual appliance downloads page of a specific release build.

• Citrix ADC release notes page in Citrix docs site

Where do I find security updates for Citrix ADC appliances?

Citrix security team regularly releases security bulletins on Common Vulnerabilities and Exposures (CVE) for all related Citrix products. This information can be found at Citrix security bulletin. Alternatively, you can search for a specific CVE at Citrix Support site.

What is the use of the zebos.conf file available in a Citrix ADC release?

A Citrix ADC appliance uses ZebOS as the routing suite. The zebos.conf file available in a Citrix ADC release is the configuration file for ZebOS.

I want to change the SSH port (22) on the Citrix ADC appliance to some other port. Is it possible to change the SSH port on the appliance?

Yes. You can change the SSH port on the Citrix ADC appliance by editing the sshd_config file in the /nsconfig directory. If the file does not exist in the /nsconfig directory, copy it from the /etc directory.

In the sshd_config file, edit the entry for Port 22 to Port <Number>, where <Number> is the target port number. If you do not want to restart the appliance and make the changes effective, terminate the sshd process by using the kill command, and then restart the process.

The flash directory is missing from the Citrix ADC appliance. What procedure must I follow to mount the flash directory?

To mount the flash directory, do the following:

1. Start the Citrix ADC appliance in single-user mode.

   When the appliance starts, the following message appears:

   Select [Enter] to boot immediately, or any other key for the command prompt. Booting [kernel] in 10 seconds…” Select space and you must see the following prompt:

   Type ‘?’ for a list of commands, ‘help’ for more detailed help.

2. Enter the following command to start FreeBSD in single-user mode:

   boot –s

   After the appliance starts, the following message appears:

   Enter full pathname of shell or RETURN for /bin/sh:

3. Press Enter to display the # prompt.

4. Run the following command to mount the flash directory:

   mount /dev/ad0s1a /flash
   
   Note: If the preceding command displays an error message about permissions, run the following command to check the disk for consistency:
   
   fsck /dev/ad0s1a
   
   Run the mount command again to mount the flash directory.