STIGUI
V-257845CAT III — Low severitySV-257845r1268251_rule

RHEL 9 must use a separate file system for /var.

Rule version RHEL-09-231020 · STIG v2 · 2026-09-17

Discussion

Ensuring that "/var" is mounted on its own partition enables the setting of more restrictive mount options. This helps protect system services such as daemons or other programs which use it. It is not uncommon for the "/var" directory to contain world-writable directories installed by other software packages.

Check

Verify that a separate file system/partition has been created for "/var" with the following command:

$ mount | grep /var

/dev/mapper/rootvg-varlv on /var type xfs (rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota) Note: Options displayed for mount may differ.

If a separate entry for "/var" is not in use, this is a finding.

Fix

Migrate the "/var" path onto a separate file system.

Identifiers

Group ID
V-257845
Group title
SRG-OS-000480-GPOS-00227
Rule ID
SV-257845r1268251_rule
Check ID
C-61586r1044919_chk
Fix ID
F-61510r925521_fix