snmpd_selinux(8)

1snmpd_selinux(8)             SELinux Policy snmpd             snmpd_selinux(8)
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NAME

6       snmpd_selinux - Security Enhanced Linux Policy for the snmpd processes
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DESCRIPTION

9       Security-Enhanced Linux secures the snmpd processes via flexible manda‐
10       tory access control.
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12       The snmpd processes execute with the  snmpd_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 snmpd_t
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ENTRYPOINTS

23       The snmpd_t SELinux type can be entered via the snmpd_exec_t file type.
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25       The default entrypoint paths for the snmpd_t domain are the following:
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27       /usr/sbin/snmpd, /usr/sbin/snmptrapd
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PROCESS TYPES

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

50       SELinux policy is customizable based on least access  required.   snmpd
51       policy is extremely flexible and has several booleans that allow you to
52       manipulate the policy and run snmpd with the tightest access possible.
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56       If you want to allow all domains to execute in fips_mode, you must turn
57       on the fips_mode boolean. Enabled by default.
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59       setsebool -P fips_mode 1
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PORT TYPES

64       SELinux defines port types to represent TCP and UDP ports.
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66       You  can  see  the  types associated with a port by using the following
67       command:
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69       semanage port -l
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71
72       Policy governs the access  confined  processes  have  to  these  ports.
73       SELinux snmpd policy is very flexible allowing users to setup their sn‐
74       mpd processes in as secure a method as possible.
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76       The following port types are defined for snmpd:
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78
79       snmp_port_t
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83       Default Defined Ports:
84                 tcp 199,1161,161-162,10161-10162
85                 udp 161-162,10161-10162
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MANAGED FILES

88       The SELinux process type snmpd_t can manage files labeled with the fol‐
89       lowing  file  types.   The paths listed are the default paths for these
90       file types.  Note the processes UID still need to have DAC permissions.
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92       cluster_conf_t
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94            /etc/cluster(/.*)?
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96       cluster_var_lib_t
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98            /var/lib/pcsd(/.*)?
99            /var/lib/cluster(/.*)?
100            /var/lib/openais(/.*)?
101            /var/lib/pengine(/.*)?
102            /var/lib/corosync(/.*)?
103            /usr/lib/heartbeat(/.*)?
104            /var/lib/heartbeat(/.*)?
105            /var/lib/pacemaker(/.*)?
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107       cluster_var_run_t
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109            /var/run/crm(/.*)?
110            /var/run/cman_.*
111            /var/run/rsctmp(/.*)?
112            /var/run/aisexec.*
113            /var/run/heartbeat(/.*)?
114            /var/run/pcsd-ruby.socket
115            /var/run/corosync-qnetd(/.*)?
116            /var/run/corosync-qdevice(/.*)?
117            /var/run/corosync.pid
118            /var/run/cpglockd.pid
119            /var/run/rgmanager.pid
120            /var/run/cluster/rgmanager.sk
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122       krb5_host_rcache_t
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124            /var/tmp/krb5_0.rcache2
125            /var/cache/krb5rcache(/.*)?
126            /var/tmp/nfs_0
127            /var/tmp/DNS_25
128            /var/tmp/host_0
129            /var/tmp/imap_0
130            /var/tmp/HTTP_23
131            /var/tmp/HTTP_48
132            /var/tmp/ldap_55
133            /var/tmp/ldap_487
134            /var/tmp/ldapmap1_0
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136       root_t
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138            /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
139            /
140            /initrd
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142       snmpd_log_t
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144            /var/log/snmpd.log.*
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146       snmpd_var_lib_t
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148            /var/agentx(/.*)?
149            /var/net-snmp(/.*)
150            /var/lib/snmp(/.*)?
151            /var/net-snmp(/.*)?
152            /var/lib/net-snmp(/.*)?
153            /var/spool/snmptt(/.*)?
154            /usr/share/snmp/mibs/.index
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156       snmpd_var_run_t
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158            /var/run/snmpd(/.*)?
159            /var/run/net-snmp(/.*)?
160            /var/run/snmpd.pid
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162

FILE CONTEXTS

164       SELinux requires files to have an extended attribute to define the file
165       type.
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167       You can see the context of a file using the -Z option to ls
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169       Policy  governs  the  access  confined  processes  have to these files.
170       SELinux snmpd policy is very flexible allowing users to setup their sn‐
171       mpd processes in as secure a method as possible.
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173       EQUIVALENCE DIRECTORIES
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176       snmpd policy stores data with multiple different file context types un‐
177       der the /var/run/snmpd directory.  If you would like to store the  data
178       in  a different directory you can use the semanage command to create an
179       equivalence mapping.  If you wanted to store this data under  the  /srv
180       directory you would execute the following command:
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182       semanage fcontext -a -e /var/run/snmpd /srv/snmpd
183       restorecon -R -v /srv/snmpd
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185       STANDARD FILE CONTEXT
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187       SELinux  defines the file context types for the snmpd, if you wanted to
188       store files with these types in a diffent paths, you  need  to  execute
189       the  semanage  command  to  specify alternate labeling and then use re‐
190       storecon to put the labels on disk.
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192       semanage fcontext -a -t snmpd_var_lib_t '/srv/mysnmpd_content(/.*)?'
193       restorecon -R -v /srv/mysnmpd_content
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195       Note: SELinux often uses regular expressions  to  specify  labels  that
196       match multiple files.
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198       The following file types are defined for snmpd:
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202       snmpd_exec_t
203
204       -  Set  files  with the snmpd_exec_t type, if you want to transition an
205       executable to the snmpd_t domain.
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208       Paths:
209            /usr/sbin/snmpd, /usr/sbin/snmptrapd
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211
212       snmpd_initrc_exec_t
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214       - Set files with the snmpd_initrc_exec_t type, if you want  to  transi‐
215       tion an executable to the snmpd_initrc_t domain.
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219       snmpd_log_t
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221       - Set files with the snmpd_log_t type, if you want to treat the data as
222       snmpd log data, usually stored under the /var/log directory.
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226       snmpd_var_lib_t
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228       - Set files with the snmpd_var_lib_t type, if you want to store the sn‐
229       mpd files under the /var/lib directory.
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231
232       Paths:
233            /var/agentx(/.*)?,     /var/net-snmp(/.*),    /var/lib/snmp(/.*)?,
234            /var/net-snmp(/.*)?,    /var/lib/net-snmp(/.*)?,    /var/spool/sn‐
235            mptt(/.*)?, /usr/share/snmp/mibs/.index
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238       snmpd_var_run_t
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240       - Set files with the snmpd_var_run_t type, if you want to store the sn‐
241       mpd files under the /run or /var/run directory.
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244       Paths:
245            /var/run/snmpd(/.*)?, /var/run/net-snmp(/.*)?, /var/run/snmpd.pid
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247
248       Note: File context can be temporarily modified with the chcon  command.
249       If  you want to permanently change the file context you need to use the
250       semanage fcontext command.  This will modify the SELinux labeling data‐
251       base.  You will need to use restorecon to apply the labels.
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COMMANDS

255       semanage  fcontext  can also be used to manipulate default file context
256       mappings.
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258       semanage permissive can also be used to manipulate  whether  or  not  a
259       process type is permissive.
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261       semanage  module can also be used to enable/disable/install/remove pol‐
262       icy modules.
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264       semanage port can also be used to manipulate the port definitions
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266       semanage boolean can also be used to manipulate the booleans
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269       system-config-selinux is a GUI tool available to customize SELinux pol‐
270       icy settings.
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AUTHOR

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