Security-Enhanced Linux secures the git_session processes via flexible mandatory access control.
The git_session processes execute with the git_session_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 git_session_t
The git_session_t SELinux type can be entered via the gitd_exec_t file type.
The default entrypoint paths for the git_session_t domain are the following:
/usr/libexec/git-core/git-daemon
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux git_session policy is very flexible allowing users to setup their git_session processes in as secure a method as possible.
The following process types are defined for git_session:
git_session_t
Note: semanage permissive -a git_session_t can be used to make the process type git_session_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.
If you want to determine whether Git session daemon can bind TCP sockets to all unreserved ports, you must turn on the git_session_bind_all_unreserved_ports boolean. Disabled by default.
setsebool -P git_session_bind_all_unreserved_ports 1
If you want to determine whether calling user domains can execute Git daemon in the git_session_t domain, you must turn on the git_session_users boolean. Disabled by default.
setsebool -P git_session_users 1
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
If you want to support NFS home directories, you must turn on the use_nfs_home_dirs boolean. Disabled by default.
setsebool -P use_nfs_home_dirs 1
If you want to support SAMBA home directories, you must turn on the use_samba_home_dirs boolean. Disabled by default.
setsebool -P use_samba_home_dirs 1
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 boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux policy settings.