Security-Enhanced Linux secures the amanda processes via flexible mandatory access control.
The amanda processes execute with the amanda_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier.
For example:
ps -eZ | grep amanda_t
The amanda_t SELinux type can be entered via the amanda_inetd_exec_t file type.
The default entrypoint paths for the amanda_t domain are the following:
/usr/sbin/amandad, /usr/lib/amanda/amandad, /usr/lib/amanda/amindexd, /usr/lib/amanda/amidxtaped
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux amanda policy is very flexible allowing users to setup their amanda processes in as secure a method as possible.
The following process types are defined for amanda:
amanda_t, amanda_recover_t
Note: semanage permissive -a amanda_t can be used to make the process type amanda_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn on the authlogin_nsswitch_use_ldap boolean. Disabled by default.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.
setsebool -P fips_mode 1
If you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by default.
setsebool -P kerberos_enabled 1
If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.
setsebool -P nis_enabled 1
If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Enabled by default.
setsebool -P nscd_use_shm 1
You can see the types associated with a port by using the following command:
semanage port -l
Policy governs the access confined processes have to these ports. SELinux amanda policy is very flexible allowing users to setup their amanda processes in as secure a method as possible.
The following port types are defined for amanda:
Default Defined Ports: tcp 10080-10083 udp 10080-10082
The SELinux process type amanda_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions.
amanda_amandates_t
/etc/amandates
amanda_data_t
/etc/amanda/.*/index(/.*)?
/etc/amanda/.*/tapelist(/.*)?
/var/lib/amanda/[^/]+(/.*)?
/etc/amanda/DailySet1(/.*)?
amanda_dumpdates_t
/etc/dumpdates
amanda_gnutarlists_t
/var/lib/amanda/gnutar-lists(/.*)?
amanda_log_t
/var/log/amanda(/.*)?
/var/lib/amanda/[^/]*/log(/.*)?
amanda_tmp_t
amanda_tmpfs_t
amanda_var_lib_t
/var/lib/amanda/[^/]+/index(/.*)?
/var/lib/amanda
cluster_conf_t
/etc/cluster(/.*)?
cluster_var_lib_t
/var/lib/pcsd(/.*)?
/var/lib/cluster(/.*)?
/var/lib/openais(/.*)?
/var/lib/pengine(/.*)?
/var/lib/corosync(/.*)?
/usr/lib/heartbeat(/.*)?
/var/lib/heartbeat(/.*)?
/var/lib/pacemaker(/.*)?
cluster_var_run_t
/var/run/crm(/.*)?
/var/run/cman_.*
/var/run/rsctmp(/.*)?
/var/run/aisexec.*
/var/run/heartbeat(/.*)?
/var/run/corosync-qnetd(/.*)?
/var/run/corosync-qdevice(/.*)?
/var/run/corosync.pid
/var/run/cpglockd.pid
/var/run/rgmanager.pid
/var/run/cluster/rgmanager.sk
root_t
/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd
You can see the context of a file using the -Z option to lsP Policy governs the access confined processes have to these files. SELinux amanda policy is very flexible allowing users to setup their amanda processes in as secure a method as possible.
EQUIVALENCE DIRECTORIES
amanda policy stores data with multiple different file context types under the /var/lib/amanda/[^/]+ directory. If you would like to store the data in a different directory you can use the semanage command to create an equivalence mapping. If you wanted to store this data under the /srv dirctory you would execute the following command:
semanage fcontext -a -e /var/lib/amanda/[^/]+ /srv/]+
restorecon -R -v /srv/]+
STANDARD FILE CONTEXT
SELinux defines the file context types for the amanda, if you wanted to store files with these types in a diffent paths, you need to execute the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk.
semanage fcontext -a -t amanda_recover_dir_t '/srv/myamanda_content(/.*)?'
restorecon -R -v /srv/myamanda_content
Note: SELinux often uses regular expressions to specify labels that match multiple files.
The following file types are defined for amanda:
amanda_amandates_t
- Set files with the amanda_amandates_t type, if you want to treat the files as amanda amandates data.
amanda_config_t
- Set files with the amanda_config_t type, if you want to treat the files as amanda configuration data, usually stored under the /etc directory.
amanda_data_t
- Set files with the amanda_data_t type, if you want to treat the files as amanda content.
amanda_dumpdates_t
- Set files with the amanda_dumpdates_t type, if you want to treat the files as amanda dumpdates data.
amanda_exec_t
- Set files with the amanda_exec_t type, if you want to transition an executable to the amanda_t domain.
amanda_gnutarlists_t
- Set files with the amanda_gnutarlists_t type, if you want to treat the files as amanda gnutarlists data.
amanda_inetd_exec_t
- Set files with the amanda_inetd_exec_t type, if you want to transition an executable to the amanda_inetd_t domain.
amanda_log_t
- Set files with the amanda_log_t type, if you want to treat the data as amanda log data, usually stored under the /var/log directory.
amanda_recover_dir_t
- Set files with the amanda_recover_dir_t type, if you want to treat the files as amanda recover dir data.
amanda_recover_exec_t
- Set files with the amanda_recover_exec_t type, if you want to transition an executable to the amanda_recover_t domain.
amanda_tmp_t
- Set files with the amanda_tmp_t type, if you want to store amanda temporary files in the /tmp directories.
amanda_tmpfs_t
- Set files with the amanda_tmpfs_t type, if you want to store amanda files on a tmpfs file system.
amanda_unit_file_t
- Set files with the amanda_unit_file_t type, if you want to treat the files as amanda unit content.
amanda_usr_lib_t
- Set files with the amanda_usr_lib_t type, if you want to treat the files as amanda usr lib data.
amanda_var_lib_t
- Set files with the amanda_var_lib_t type, if you want to store the amanda files under the /var/lib directory.
Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.
semanage permissive can also be used to manipulate whether or not a process type is permissive.
semanage module can also be used to enable/disable/install/remove policy modules.
semanage port can also be used to manipulate the port definitions
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux policy settings.