Bug ID 517209: tmsh save sys config file /var/tmp or /shared/tmp can make some BIG-IP functionality unusable

Last Modified: Apr 10, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP All(all modules)

Known Affected Versions:
11.0.0, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8

Fixed In:
12.0.0, 11.6.1, 11.5.4 HF2

Opened: Apr 08, 2015
Severity: 3-Major
Related AskF5 Article:


The tmsh save sys config file /var/tmp or /shared/tmp or a relative path to these directories (for example, /config/../shared/tmp) saves the scf with the specified real path. However, since the /var/tmp directory is used internally by BIG-IP daemons, some functionality may be rendered unusable till the /var/tmp symlink to /shared/tmp is restored.


Some system functionality may be rendered unusable.


Saving the sys config file /var/tmp or /shared/tmp (or a relative patch to one of these directories).


Use the following commands to delete the scf and restore the symlink and reset the permissions of the /shared/tmp directory: -- rm -f /var/tmp -- ln -s /shared/tmp /var/ -- chmod 01777 /shared/tmp -- bigstart restart

Fix Information

The /var/tmp or /shared/tmp are now invalid paths for the tmsh save sys config file command.

Behavior Change