Adding and removing custom programs can affect the virtual links of the system files on your VPS. This can cause your disk usage to increase dramatically and potentially cause your server to stop functioning properly. Modifying system files could also interfere with our regular system updates which include patches and upgrades. In a similar way, our updates could replace system files installed by your custom programs.

We have created some tools designed to help you manage your system files and custom programs in order to prevent the potential problems you may face.


The relink command is designed to help conserve disk space on your VPS by finding files on your server that are identical to system files found in the /skel directory. relink will search a directory for any files that match and then replace those files with virtual links which take up virtually no disk space. For more information, run man relink from your VPS command prompt.


The vunlink command is designed to quickly remove virtual link directory trees. For more information, run vunlink -h from your VPS command prompt.


In order to prevent relink or the regular system updates from modifying files or directories on your VPS, you may want to freeze them. The freeze command adds a special flag to each file which tells relink not to touch the file. Run freeze --help from your VPS command prompt for help using the freeze command.

Please note: the information on this page applies to ITS web hosting plans. It may or may not apply to other environments. If you are looking for a feature described here, or better support from your hosting provider, please consider hosting your site with ITS!

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phone 630.420.2550
fax 630.420.2771