1courier_tcpd_selinux(8) SELinux Policy courier_tcpd courier_tcpd_selinux(8)
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6 courier_tcpd_selinux - Security Enhanced Linux Policy for the
7 courier_tcpd processes
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10 Security-Enhanced Linux secures the courier_tcpd processes via flexible
11 mandatory access control.
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13 The courier_tcpd processes execute with the courier_tcpd_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep courier_tcpd_t
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24 The courier_tcpd_t SELinux type can be entered via the
25 courier_tcpd_exec_t file type.
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27 The default entrypoint paths for the courier_tcpd_t domain are the fol‐
28 lowing:
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30 /usr/sbin/couriertcpd
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33 SELinux defines process types (domains) for each process running on the
34 system
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36 You can see the context of a process using the -Z option to ps
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38 Policy governs the access confined processes have to files. SELinux
39 courier_tcpd policy is very flexible allowing users to setup their
40 courier_tcpd processes in as secure a method as possible.
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42 The following process types are defined for courier_tcpd:
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44 courier_tcpd_t
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46 Note: semanage permissive -a courier_tcpd_t can be used to make the
47 process type courier_tcpd_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
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53 SELinux policy is customizable based on least access required.
54 courier_tcpd policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run courier_tcpd with the tight‐
56 est access possible.
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60 If you want to allow all domains to execute in fips_mode, you must turn
61 on the fips_mode boolean. Enabled by default.
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63 setsebool -P fips_mode 1
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68 The SELinux process type courier_tcpd_t can manage files labeled with
69 the following file types. The paths listed are the default paths for
70 these file types. Note the processes UID still need to have DAC per‐
71 missions.
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73 cluster_conf_t
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75 /etc/cluster(/.*)?
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77 cluster_var_lib_t
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79 /var/lib/pcsd(/.*)?
80 /var/lib/cluster(/.*)?
81 /var/lib/openais(/.*)?
82 /var/lib/pengine(/.*)?
83 /var/lib/corosync(/.*)?
84 /usr/lib/heartbeat(/.*)?
85 /var/lib/heartbeat(/.*)?
86 /var/lib/pacemaker(/.*)?
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88 cluster_var_run_t
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90 /var/run/crm(/.*)?
91 /var/run/cman_.*
92 /var/run/rsctmp(/.*)?
93 /var/run/aisexec.*
94 /var/run/heartbeat(/.*)?
95 /var/run/pcsd-ruby.socket
96 /var/run/corosync-qnetd(/.*)?
97 /var/run/corosync-qdevice(/.*)?
98 /var/run/corosync.pid
99 /var/run/cpglockd.pid
100 /var/run/rgmanager.pid
101 /var/run/cluster/rgmanager.sk
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103 courier_var_lib_t
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105 /var/lib/courier(/.*)?
106 /var/lib/courier-imap(/.*)?
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108 courier_var_run_t
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110 /var/run/courier(/.*)?
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112 root_t
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114 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
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116 /initrd
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120 SELinux requires files to have an extended attribute to define the file
121 type.
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123 You can see the context of a file using the -Z option to ls
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125 Policy governs the access confined processes have to these files.
126 SELinux courier_tcpd policy is very flexible allowing users to setup
127 their courier_tcpd processes in as secure a method as possible.
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129 The following file types are defined for courier_tcpd:
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133 courier_tcpd_exec_t
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135 - Set files with the courier_tcpd_exec_t type, if you want to transi‐
136 tion an executable to the courier_tcpd_t domain.
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140 Note: File context can be temporarily modified with the chcon command.
141 If you want to permanently change the file context you need to use the
142 semanage fcontext command. This will modify the SELinux labeling data‐
143 base. You will need to use restorecon to apply the labels.
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147 semanage fcontext can also be used to manipulate default file context
148 mappings.
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150 semanage permissive can also be used to manipulate whether or not a
151 process type is permissive.
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153 semanage module can also be used to enable/disable/install/remove pol‐
154 icy modules.
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156 semanage boolean can also be used to manipulate the booleans
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159 system-config-selinux is a GUI tool available to customize SELinux pol‐
160 icy settings.
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164 This manual page was auto-generated using sepolicy manpage .
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168 selinux(8), courier_tcpd(8), semanage(8), restorecon(8), chcon(1), se‐
169 policy(8), setsebool(8)
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173courier_tcpd 21-06-09 courier_tcpd_selinux(8)