Red Hat Training

A Red Hat training course is available for Red Hat Enterprise Linux

7.10. augeas

Updated augeas packages that fix several bugs and add one enhancement are now available for Red Hat Enterprise Linux 6.
Augeas is a utility for editing configuration. Augeas parses configuration files in their native formats and transforms them into a tree. Configuration changes are made by manipulating this tree and saving it back into native configuration files. Augeas also uses "lenses" as basic building blocks for establishing the mapping from files into the Augeas tree and back.

Bug Fixes

Previously, some cgroup controller types used in the /etc/cgconfig.conf file were not recognized. As a consequence, parsing error occurred in Augeas and an error message was returned. With this update, the Augeas module can parse files containing these controller names as expected.
Entries in the /etc/services file containing colons in the service name prevented Augeas from parsing the file. This update makes sure that the "service_name" field in the services.aug file is able to support the colon character, and the aforementioned entries can now be parsed successfully.
When entries in /etc/rsyslog.conf were configured for remote logging over Transmission Control Protocol (TCP), Augeas was unable to parse the file. The underlying source code has been fixed, and files containing this configuration are now parsed successfully.
By default, the /etc/sysconfig/ file was parsed by the wrong module, which led to a parsing failure and an error reported by Augeas. The wrong module has been substituted with a correct one, and /etc/sysconfig/ is now parsed correctly by default.
Previously, the Augeas utility did not correctly parse the "ssh" and "fence_kdump_*" parameters in the /etc/kdump.conf file. As a consequence, using Augeas to edit these parameters in kdump configuration failed. With this update, Augeas has been updated to parse "ssh" and "fence_kdump_*" as intended, and the described problem no longer occurs.
Previously, the aug_match API returned paths of files and nodes with special characters unescaped, unsuitable for use in further API calls. Consequently, specially constructed file names could cause programs built on Augeas to function incorrectly, and implementing escaping in such programs was impossible. With this update, Augeas escapes paths returned from aug_match correctly, and paths returned from aug_match can be used safely and reliably in further API calls.
Prior to this update, Augeas was unable to parse the /etc/krb5.conf configuration files containing values with curly brackets ("{}"). To fix this bug, Augeas lens (parser) has been fixed to handle these characters in krb5.conf setting values, and Augeas can now parse these krb5.conf files as expected.
Previously. Augeas was unable to parse the .properties (Java-style) files containing a multi-line value that begins with a blank line. Augeas lens (parser) has been fixed to accept an empty starting line, thus fixing this bug.


A lens for the /etc/shadow file format has been added to Augeas to parse the shadow password file.
Users of augeas are advised to upgrade to these updated packages, which fix these bugs and add this enhancement.