1qmail_remote_selinux(8) SELinux Policy qmail_remote qmail_remote_selinux(8)
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6 qmail_remote_selinux - Security Enhanced Linux Policy for the
7 qmail_remote processes
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10 Security-Enhanced Linux secures the qmail_remote processes via flexible
11 mandatory access control.
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13 The qmail_remote processes execute with the qmail_remote_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 qmail_remote_t
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24 The qmail_remote_t SELinux type can be entered via the
25 qmail_remote_exec_t file type.
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27 The default entrypoint paths for the qmail_remote_t domain are the fol‐
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30 /var/qmail/bin/qmail-remote
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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 qmail_remote policy is very flexible allowing users to setup their
40 qmail_remote processes in as secure a method as possible.
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42 The following process types are defined for qmail_remote:
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44 qmail_remote_t
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46 Note: semanage permissive -a qmail_remote_t can be used to make the
47 process type qmail_remote_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 qmail_remote policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run qmail_remote with the tight‐
56 est access possible.
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60 If you want to deny any process from ptracing or debugging any other
61 processes, you must turn on the deny_ptrace boolean. Enabled by
62 default.
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64 setsebool -P deny_ptrace 1
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68 If you want to allow any process to mmap any file on system with
69 attribute file_type, you must turn on the domain_can_mmap_files bool‐
70 ean. Enabled by default.
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72 setsebool -P domain_can_mmap_files 1
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76 If you want to allow all domains write to kmsg_device, while kernel is
77 executed with systemd.log_target=kmsg parameter, you must turn on the
78 domain_can_write_kmsg boolean. Disabled by default.
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80 setsebool -P domain_can_write_kmsg 1
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84 If you want to allow all domains to use other domains file descriptors,
85 you must turn on the domain_fd_use boolean. Enabled by default.
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87 setsebool -P domain_fd_use 1
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91 If you want to allow all domains to have the kernel load modules, you
92 must turn on the domain_kernel_load_modules boolean. Disabled by
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95 setsebool -P domain_kernel_load_modules 1
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99 If you want to allow all domains to execute in fips_mode, you must turn
100 on the fips_mode boolean. Enabled by default.
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102 setsebool -P fips_mode 1
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106 If you want to enable reading of urandom for all domains, you must turn
107 on the global_ssp boolean. Disabled by default.
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109 setsebool -P global_ssp 1
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114 The SELinux process type qmail_remote_t can manage files labeled with
115 the following file types. The paths listed are the default paths for
116 these file types. Note the processes UID still need to have DAC per‐
117 missions.
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119 qmail_spool_t
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121 /var/qmail/queue(/.*)?
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125 SELinux requires files to have an extended attribute to define the file
126 type.
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128 You can see the context of a file using the -Z option to ls
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130 Policy governs the access confined processes have to these files.
131 SELinux qmail_remote policy is very flexible allowing users to setup
132 their qmail_remote processes in as secure a method as possible.
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134 The following file types are defined for qmail_remote:
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138 qmail_remote_exec_t
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140 - Set files with the qmail_remote_exec_t type, if you want to transi‐
141 tion an executable to the qmail_remote_t domain.
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145 Note: File context can be temporarily modified with the chcon command.
146 If you want to permanently change the file context you need to use the
147 semanage fcontext command. This will modify the SELinux labeling data‐
148 base. You will need to use restorecon to apply the labels.
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152 semanage fcontext can also be used to manipulate default file context
153 mappings.
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155 semanage permissive can also be used to manipulate whether or not a
156 process type is permissive.
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158 semanage module can also be used to enable/disable/install/remove pol‐
159 icy modules.
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161 semanage boolean can also be used to manipulate the booleans
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164 system-config-selinux is a GUI tool available to customize SELinux pol‐
165 icy settings.
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169 This manual page was auto-generated using sepolicy manpage .
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173 selinux(8), qmail_remote(8), semanage(8), restorecon(8), chcon(1),
174 sepolicy(8) , setsebool(8)
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178qmail_remote 19-04-25 qmail_remote_selinux(8)