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/corosync-qnetd(/.*)?
96 /var/run/corosync-qdevice(/.*)?
97 /var/run/corosync.pid
98 /var/run/cpglockd.pid
99 /var/run/rgmanager.pid
100 /var/run/cluster/rgmanager.sk
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102 courier_var_lib_t
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104 /var/lib/courier(/.*)?
105 /var/lib/courier-imap(/.*)?
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107 courier_var_run_t
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109 /var/run/courier(/.*)?
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111 root_t
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113 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
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115 /initrd
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119 SELinux requires files to have an extended attribute to define the file
120 type.
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122 You can see the context of a file using the -Z option to ls
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124 Policy governs the access confined processes have to these files.
125 SELinux courier_tcpd policy is very flexible allowing users to setup
126 their courier_tcpd processes in as secure a method as possible.
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128 The following file types are defined for courier_tcpd:
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132 courier_tcpd_exec_t
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134 - Set files with the courier_tcpd_exec_t type, if you want to transi‐
135 tion an executable to the courier_tcpd_t domain.
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139 Note: File context can be temporarily modified with the chcon command.
140 If you want to permanently change the file context you need to use the
141 semanage fcontext command. This will modify the SELinux labeling data‐
142 base. You will need to use restorecon to apply the labels.
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146 semanage fcontext can also be used to manipulate default file context
147 mappings.
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149 semanage permissive can also be used to manipulate whether or not a
150 process type is permissive.
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152 semanage module can also be used to enable/disable/install/remove pol‐
153 icy modules.
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155 semanage boolean can also be used to manipulate the booleans
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158 system-config-selinux is a GUI tool available to customize SELinux pol‐
159 icy settings.
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163 This manual page was auto-generated using sepolicy manpage .
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167 selinux(8), courier_tcpd(8), semanage(8), restorecon(8), chcon(1),
168 sepolicy(8), setsebool(8)
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172courier_tcpd 19-10-08 courier_tcpd_selinux(8)