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cPanel & WHM Update Configuration Files: cpupdate.conf, noquotafs, and Third‑Party Application Updates

This article explains the update configuration files used by cPanel & WHM, including cpupdate.conf, which controls how the system updates cPanel, OS packages, and SpamAssassin rules; the noquotafs file, which excludes specific filesystem types from quota management; and the Third‑Party Applications Updates section, which lists bundled external applications across different cPanel versions.

cpupdate.confcPanel update configurationnoquotafs, third‑party updates

~3 min read · Updated Feb 17, 2026

1. The cPanel & WHM Update Configuration File — cpupdate.conf


The /etc/cpupdate.conf file determines how cPanel & WHM updates the following system components:

  • cPanel & WHM itself
  • Installed OS packages
  • Apache SpamAssassin™ rules

1.1 How to Edit the File

Each line contains a KEY=value pair. You can edit the file with any text editor.


1.2 File Format

CPANEL=release
RPMUP=daily
SARULESUP=daily
STAGING_DIR=/usr/local/cpanel
UPDATES=daily

Notes:

  • Each key-value pair must be on its own line.
  • Only one equals sign (=) is allowed per line.
  • No spaces are allowed in the file.
  • /usr/local/cpanel is the default staging directory.

2. Configuration Values


2.1 CPANEL

Defines the release tier or exact version of cPanel & WHM.

You may specify:

  • A release tier: edge, current, release, stable, lts
  • An exact version number: 118, 11.118, 118.123.45

Warning: Unsupported versions will cause installation failure.

Example:

CPANEL=release

2.2 RPMUP

Controls how OS packages are updated.

  • daily — Update packages daily
  • manual — Update manually
  • never — Disable all updates

Example:

RPMUP=daily

2.3 SARULESUP

Controls how SpamAssassin rules are updated.

  • daily
  • manual
  • never

Example:

SARULESUP=daily

2.4 STAGING_DIR

Specifies the staging directory for update files.

Example:

STAGING_DIR=/valid/path

2.5 UPDATES

Controls how cPanel & WHM itself is updated.

  • daily
  • manual

Example:

UPDATES=daily


3. The Quota File Systems Configuration File — /var/cpanel/noquotafs


This file specifies filesystem types that should be excluded from cPanel’s quota system.

Note: This file only exists if quotas are enabled.

How to Edit

List each filesystem type on a separate line. The file is not case-sensitive.

Example:

nfs
ext3


4. Third‑Party Applications Updates


This section lists the third‑party applications included with various cPanel & WHM versions.

Note: Lists are generated using Ubuntu servers. Versions may differ on AlmaLinux, CloudLinux, and Rocky Linux.

Supported Versions:

122
124
126
128
130
132
134

cPanel & WHM version 134 includes a set of bundled third‑party applications (full list available in official documentation).

Conclusion


The cpupdate.conf and noquotafs configuration files play a critical role in managing updates and quota behavior in cPanel & WHM. The Third‑Party Applications Updates section provides insight into bundled external software across versions. Understanding these files helps administrators maintain precise control over system updates and server behavior.


Written & researched by Dr. Shahin Siami

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