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F S UID PID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME COMD
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ifconfig_selinux(8) SELinux Policy ifconfig ifconfig_selinux(8)
NAME
ifconfig_selinux - Security Enhanced Linux Policy for the ifconfig processes
DESCRIPTION
Security-Enhanced Linux secures the ifconfig processes via flexible mandatory access control.
The ifconfig processes execute with the ifconfig_t SELinux type. You can check if you have these processes running by executing the ps com-
mand with the -Z qualifier.
For example:
ps -eZ | grep ifconfig_t
ENTRYPOINTS
The ifconfig_t SELinux type can be entered via the ifconfig_exec_t file type.
The default entrypoint paths for the ifconfig_t domain are the following:
/bin/ip, /sbin/ip, /sbin/tc, /usr/bin/ip, /usr/sbin/ip, /usr/sbin/tc, /sbin/ethtool, /sbin/ifconfig, /sbin/iwconfig, /sbin/mii-tool,
/usr/sbin/ethtool, /usr/sbin/ifconfig, /usr/sbin/iwconfig, /usr/sbin/mii-tool, /sbin/ipx_configure, /sbin/ipx_interface, /sbin/ipx_inter-
nal_net, /usr/sbin/ipx_configure, /usr/sbin/ipx_interface, /usr/sbin/ipx_internal_net
PROCESS TYPES
SELinux defines process types (domains) for each process running on the system
You can see the context of a process using the -Z option to ps
Policy governs the access confined processes have to files. SELinux ifconfig policy is very flexible allowing users to setup their ifcon-
fig processes in as secure a method as possible.
The following process types are defined for ifconfig:
ifconfig_t
Note: semanage permissive -a ifconfig_t can be used to make the process type ifconfig_t permissive. SELinux does not deny access to permis-
sive process types, but the AVC (SELinux denials) messages are still generated.
BOOLEANS
SELinux policy is customizable based on least access required. ifconfig policy is extremely flexible and has several booleans that allow
you to manipulate the policy and run ifconfig with the tightest access possible.
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 authlo-
gin_nsswitch_use_ldap boolean. Disabled by default.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow all daemons the ability to read/write terminals, you must turn on the daemons_use_tty boolean. Disabled by default.
setsebool -P daemons_use_tty 1
If you want to deny any process from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean. Enabled by
default.
setsebool -P deny_ptrace 1
If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled by default.
setsebool -P domain_fd_use 1
If you want to allow all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules boolean. Disabled by
default.
setsebool -P domain_kernel_load_modules 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 enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.
setsebool -P global_ssp 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. Disabled by default.
setsebool -P nscd_use_shm 1
NSSWITCH DOMAIN
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server for the ifconfig_t, you must
turn on the authlogin_nsswitch_use_ldap boolean.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow confined applications to run with kerberos for the ifconfig_t, you must turn on the kerberos_enabled boolean.
setsebool -P kerberos_enabled 1
MANAGED FILES
The SELinux process type ifconfig_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.
ifconfig_var_run_t
/var/run/netns(/.*)?
ipsec_var_run_t
/var/racoon(/.*)?
/var/run/pluto(/.*)?
/var/run/charon.*
/var/run/charon.ctl
/var/run/racoon.pid
FILE CONTEXTS
SELinux requires files to have an extended attribute to define the file type.
You can see the context of a file using the -Z option to ls
Policy governs the access confined processes have to these files. SELinux ifconfig policy is very flexible allowing users to setup their
ifconfig processes in as secure a method as possible.
STANDARD FILE CONTEXT
SELinux defines the file context types for the ifconfig, if you wanted to store files with these types in a diffent paths, you need to exe-
cute the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk.
semanage fcontext -a -t ifconfig_exec_t '/srv/ifconfig/content(/.*)?'
restorecon -R -v /srv/myifconfig_content
Note: SELinux often uses regular expressions to specify labels that match multiple files.
The following file types are defined for ifconfig:
ifconfig_exec_t
- Set files with the ifconfig_exec_t type, if you want to transition an executable to the ifconfig_t domain.
Paths:
/bin/ip, /sbin/ip, /sbin/tc, /usr/bin/ip, /usr/sbin/ip, /usr/sbin/tc, /sbin/ethtool, /sbin/ifconfig, /sbin/iwconfig, /sbin/mii-tool,
/usr/sbin/ethtool, /usr/sbin/ifconfig, /usr/sbin/iwconfig, /usr/sbin/mii-tool, /sbin/ipx_configure, /sbin/ipx_interface,
/sbin/ipx_internal_net, /usr/sbin/ipx_configure, /usr/sbin/ipx_interface, /usr/sbin/ipx_internal_net
ifconfig_var_run_t
- Set files with the ifconfig_var_run_t type, if you want to store the ifconfig files under the /run or /var/run 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.
COMMANDS
semanage fcontext can also be used to manipulate default file context mappings.
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.
AUTHOR
This manual page was auto-generated using sepolicy manpage .
SEE ALSO
selinux(8), ifconfig(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8)
ifconfig 14-06-10 ifconfig_selinux(8)