avahi_selinux(8)

1avahi_selinux(8)             SELinux Policy avahi             avahi_selinux(8)
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NAME

6       avahi_selinux - Security Enhanced Linux Policy for the avahi processes
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DESCRIPTION

9       Security-Enhanced Linux secures the avahi processes via flexible manda‐
10       tory access control.
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12       The avahi processes execute with the  avahi_t  SELinux  type.  You  can
13       check  if  you have these processes running by executing the ps command
14       with the -Z qualifier.
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16       For example:
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18       ps -eZ | grep avahi_t
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ENTRYPOINTS

23       The avahi_t SELinux type can be entered via the avahi_exec_t file type.
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25       The default entrypoint paths for the avahi_t domain are the following:
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27       /usr/sbin/avahi-daemon,    /usr/sbin/avahi-autoipd,    /usr/sbin/avahi-
28       dnsconfd
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PROCESS TYPES

31       SELinux defines process types (domains) for each process running on the
32       system
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34       You can see the context of a process using the -Z option to ps
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36       Policy governs the access confined processes have  to  files.   SELinux
37       avahi  policy is very flexible allowing users to setup their avahi pro‐
38       cesses in as secure a method as possible.
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40       The following process types are defined for avahi:
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42       avahi_t
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44       Note: semanage permissive -a avahi_t can be used to  make  the  process
45       type  avahi_t  permissive.  SELinux  does not deny access to permissive
46       process types, but the AVC (SELinux denials) messages are still  gener‐
47       ated.
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BOOLEANS

51       SELinux  policy  is customizable based on least access required.  avahi
52       policy is extremely flexible and has several booleans that allow you to
53       manipulate the policy and run avahi with the tightest access possible.
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57       If you want to allow users to resolve user passwd entries directly from
58       ldap rather then using a sssd server, you  must  turn  on  the  authlo‐
59       gin_nsswitch_use_ldap boolean. Disabled by default.
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61       setsebool -P authlogin_nsswitch_use_ldap 1
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65       If you want to allow all domains to execute in fips_mode, you must turn
66       on the fips_mode boolean. Enabled by default.
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68       setsebool -P fips_mode 1
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72       If you want to allow Apache to communicate with avahi service via dbus,
73       you must turn on the httpd_dbus_avahi boolean. Disabled by default.
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75       setsebool -P httpd_dbus_avahi 1
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79       If  you  want  to allow confined applications to run with kerberos, you
80       must turn on the kerberos_enabled boolean. Enabled by default.
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82       setsebool -P kerberos_enabled 1
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86       If you want to allow system to run with  NIS,  you  must  turn  on  the
87       nis_enabled boolean. Disabled by default.
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89       setsebool -P nis_enabled 1
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93       If  you  want to allow confined applications to use nscd shared memory,
94       you must turn on the nscd_use_shm boolean. Disabled by default.
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96       setsebool -P nscd_use_shm 1
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MANAGED FILES

101       The SELinux process type avahi_t can manage files labeled with the fol‐
102       lowing  file  types.   The paths listed are the default paths for these
103       file types.  Note the processes UID still need to have DAC permissions.
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105       avahi_var_lib_t
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107            /var/lib/avahi-autoipd(/.*)?
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109       avahi_var_run_t
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111            /var/run/avahi-daemon(/.*)?
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113       cluster_conf_t
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115            /etc/cluster(/.*)?
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117       cluster_var_lib_t
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119            /var/lib/pcsd(/.*)?
120            /var/lib/cluster(/.*)?
121            /var/lib/openais(/.*)?
122            /var/lib/pengine(/.*)?
123            /var/lib/corosync(/.*)?
124            /usr/lib/heartbeat(/.*)?
125            /var/lib/heartbeat(/.*)?
126            /var/lib/pacemaker(/.*)?
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128       cluster_var_run_t
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130            /var/run/crm(/.*)?
131            /var/run/cman_.*
132            /var/run/rsctmp(/.*)?
133            /var/run/aisexec.*
134            /var/run/heartbeat(/.*)?
135            /var/run/corosync-qnetd(/.*)?
136            /var/run/corosync-qdevice(/.*)?
137            /var/run/corosync.pid
138            /var/run/cpglockd.pid
139            /var/run/rgmanager.pid
140            /var/run/cluster/rgmanager.sk
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142       net_conf_t
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144            /etc/hosts[^/]*
145            /etc/yp.conf.*
146            /etc/denyhosts.*
147            /etc/hosts.deny.*
148            /etc/resolv.conf.*
149            /etc/.resolv.conf.*
150            /etc/resolv-secure.conf.*
151            /var/run/cloud-init(/.*)?
152            /var/run/systemd/network(/.*)?
153            /etc/sysconfig/networking(/.*)?
154            /etc/sysconfig/network-scripts(/.*)?
155            /etc/sysconfig/network-scripts/.*resolv.conf
156            /var/run/NetworkManager/resolv.conf.*
157            /etc/ethers
158            /etc/ntp.conf
159            /var/run/systemd/resolve/resolv.conf
160            /var/run/systemd/resolve/stub-resolv.conf
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162       root_t
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164            /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
165            /
166            /initrd
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FILE CONTEXTS

170       SELinux requires files to have an extended attribute to define the file
171       type.
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173       You can see the context of a file using the -Z option to ls
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175       Policy  governs  the  access  confined  processes  have to these files.
176       SELinux avahi policy is very flexible allowing  users  to  setup  their
177       avahi processes in as secure a method as possible.
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179       STANDARD FILE CONTEXT
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181       SELinux  defines the file context types for the avahi, if you wanted to
182       store files with these types in a diffent paths, you  need  to  execute
183       the  semanage  command  to  sepecify  alternate  labeling  and then use
184       restorecon to put the labels on disk.
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186       semanage fcontext -a -t avahi_unit_file_t '/srv/myavahi_content(/.*)?'
187       restorecon -R -v /srv/myavahi_content
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189       Note: SELinux often uses regular expressions  to  specify  labels  that
190       match multiple files.
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192       The following file types are defined for avahi:
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196       avahi_exec_t
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198       -  Set  files  with the avahi_exec_t type, if you want to transition an
199       executable to the avahi_t domain.
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202       Paths:
203            /usr/sbin/avahi-daemon, /usr/sbin/avahi-autoipd,  /usr/sbin/avahi-
204            dnsconfd
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207       avahi_initrc_exec_t
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209       -  Set  files with the avahi_initrc_exec_t type, if you want to transi‐
210       tion an executable to the avahi_initrc_t domain.
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214       avahi_unit_file_t
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216       - Set files with the avahi_unit_file_t type, if you want to  treat  the
217       files as avahi unit content.
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221       avahi_var_lib_t
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223       -  Set  files  with  the avahi_var_lib_t type, if you want to store the
224       avahi files under the /var/lib directory.
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228       avahi_var_run_t
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230       - Set files with the avahi_var_run_t type, if you  want  to  store  the
231       avahi files under the /run or /var/run directory.
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235       Note:  File context can be temporarily modified with the chcon command.
236       If you want to permanently change the file context you need to use  the
237       semanage fcontext command.  This will modify the SELinux labeling data‐
238       base.  You will need to use restorecon to apply the labels.
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COMMANDS

242       semanage fcontext can also be used to manipulate default  file  context
243       mappings.
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245       semanage  permissive  can  also  be used to manipulate whether or not a
246       process type is permissive.
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248       semanage module can also be used to enable/disable/install/remove  pol‐
249       icy modules.
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251       semanage boolean can also be used to manipulate the booleans
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253
254       system-config-selinux is a GUI tool available to customize SELinux pol‐
255       icy settings.
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AUTHOR

259       This manual page was auto-generated using sepolicy manpage .
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