1afs_kaserver_selinux(8) SELinux Policy afs_kaserver afs_kaserver_selinux(8)
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6 afs_kaserver_selinux - Security Enhanced Linux Policy for the
7 afs_kaserver processes
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10 Security-Enhanced Linux secures the afs_kaserver processes via flexible
11 mandatory access control.
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13 The afs_kaserver processes execute with the afs_kaserver_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 afs_kaserver_t
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24 The afs_kaserver_t SELinux type can be entered via the
25 afs_kaserver_exec_t file type.
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27 The default entrypoint paths for the afs_kaserver_t domain are the fol‐
28 lowing:
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30 /usr/afs/bin/kaserver, /usr/libexec/openafs/kaserver
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33 SELinux defines process types (domains) for each process running on the
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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 afs_kaserver policy is very flexible allowing users to setup their
40 afs_kaserver processes in as secure a method as possible.
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42 The following process types are defined for afs_kaserver:
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44 afs_kaserver_t
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46 Note: semanage permissive -a afs_kaserver_t can be used to make the
47 process type afs_kaserver_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 afs_kaserver policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run afs_kaserver 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 afs_kaserver_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 afs_config_t
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121 /etc/(open)?afs(/.*)?
122 /usr/afs/etc(/.*)?
123 /usr/afs/local(/.*)?
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125 afs_ka_db_t
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127 /usr/afs/db/ka.*
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129 afs_logfile_t
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131 /usr/afs/logs(/.*)?
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135 SELinux requires files to have an extended attribute to define the file
136 type.
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138 You can see the context of a file using the -Z option to ls
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140 Policy governs the access confined processes have to these files.
141 SELinux afs_kaserver policy is very flexible allowing users to setup
142 their afs_kaserver processes in as secure a method as possible.
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144 The following file types are defined for afs_kaserver:
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148 afs_kaserver_exec_t
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150 - Set files with the afs_kaserver_exec_t type, if you want to transi‐
151 tion an executable to the afs_kaserver_t domain.
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154 Paths:
155 /usr/afs/bin/kaserver, /usr/libexec/openafs/kaserver
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158 Note: File context can be temporarily modified with the chcon command.
159 If you want to permanently change the file context you need to use the
160 semanage fcontext command. This will modify the SELinux labeling data‐
161 base. You will need to use restorecon to apply the labels.
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165 semanage fcontext can also be used to manipulate default file context
166 mappings.
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168 semanage permissive can also be used to manipulate whether or not a
169 process type is permissive.
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171 semanage module can also be used to enable/disable/install/remove pol‐
172 icy modules.
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174 semanage boolean can also be used to manipulate the booleans
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177 system-config-selinux is a GUI tool available to customize SELinux pol‐
178 icy settings.
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182 This manual page was auto-generated using sepolicy manpage .
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186 selinux(8), afs_kaserver(8), semanage(8), restorecon(8), chcon(1),
187 sepolicy(8) , setsebool(8)
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191afs_kaserver 19-04-25 afs_kaserver_selinux(8)