1svc_start_selinux(8) SELinux Policy svc_start svc_start_selinux(8)
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6 svc_start_selinux - Security Enhanced Linux Policy for the svc_start
7 processes
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10 Security-Enhanced Linux secures the svc_start processes via flexible
11 mandatory access control.
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13 The svc_start processes execute with the svc_start_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep svc_start_t
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24 The svc_start_t SELinux type can be entered via the svc_start_exec_t
25 file type.
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27 The default entrypoint paths for the svc_start_t domain are the follow‐
28 ing:
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30 /usr/bin/svc, /usr/bin/svok, /usr/bin/svscan, /usr/bin/supervise,
31 /usr/bin/svscanboot
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34 SELinux defines process types (domains) for each process running on the
35 system
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37 You can see the context of a process using the -Z option to ps
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39 Policy governs the access confined processes have to files. SELinux
40 svc_start policy is very flexible allowing users to setup their
41 svc_start processes in as secure a method as possible.
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43 The following process types are defined for svc_start:
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45 svc_start_t
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47 Note: semanage permissive -a svc_start_t can be used to make the
48 process type svc_start_t permissive. SELinux does not deny access to
49 permissive process types, but the AVC (SELinux denials) messages are
50 still generated.
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54 SELinux policy is customizable based on least access required.
55 svc_start policy is extremely flexible and has several booleans that
56 allow you to manipulate the policy and run svc_start with the tightest
57 access possible.
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61 If you want to allow all daemons the ability to read/write terminals,
62 you must turn on the daemons_use_tty boolean. Disabled by default.
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64 setsebool -P daemons_use_tty 1
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68 If you want to deny any process from ptracing or debugging any other
69 processes, you must turn on the deny_ptrace boolean. Enabled by
70 default.
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72 setsebool -P deny_ptrace 1
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76 If you want to allow any process to mmap any file on system with
77 attribute file_type, you must turn on the domain_can_mmap_files bool‐
78 ean. Enabled by default.
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80 setsebool -P domain_can_mmap_files 1
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84 If you want to allow all domains write to kmsg_device, while kernel is
85 executed with systemd.log_target=kmsg parameter, you must turn on the
86 domain_can_write_kmsg boolean. Disabled by default.
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88 setsebool -P domain_can_write_kmsg 1
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92 If you want to allow all domains to use other domains file descriptors,
93 you must turn on the domain_fd_use boolean. Enabled by default.
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95 setsebool -P domain_fd_use 1
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99 If you want to allow all domains to have the kernel load modules, you
100 must turn on the domain_kernel_load_modules boolean. Disabled by
101 default.
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103 setsebool -P domain_kernel_load_modules 1
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107 If you want to allow all domains to execute in fips_mode, you must turn
108 on the fips_mode boolean. Enabled by default.
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110 setsebool -P fips_mode 1
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114 If you want to enable reading of urandom for all domains, you must turn
115 on the global_ssp boolean. Disabled by default.
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117 setsebool -P global_ssp 1
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122 The SELinux process type svc_start_t can manage files labeled with the
123 following file types. The paths listed are the default paths for these
124 file types. Note the processes UID still need to have DAC permissions.
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126 svc_svc_t
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128 /service/.*
129 /var/axfrdns(/.*)?
130 /var/tinydns(/.*)?
131 /var/service/.*
132 /var/dnscache(/.*)?
133 /var/qmail/supervise(/.*)?
134 /service
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138 SELinux requires files to have an extended attribute to define the file
139 type.
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141 You can see the context of a file using the -Z option to ls
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143 Policy governs the access confined processes have to these files.
144 SELinux svc_start policy is very flexible allowing users to setup their
145 svc_start processes in as secure a method as possible.
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147 The following file types are defined for svc_start:
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151 svc_start_exec_t
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153 - Set files with the svc_start_exec_t type, if you want to transition
154 an executable to the svc_start_t domain.
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157 Paths:
158 /usr/bin/svc, /usr/bin/svok, /usr/bin/svscan, /usr/bin/supervise,
159 /usr/bin/svscanboot
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162 Note: File context can be temporarily modified with the chcon command.
163 If you want to permanently change the file context you need to use the
164 semanage fcontext command. This will modify the SELinux labeling data‐
165 base. You will need to use restorecon to apply the labels.
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169 semanage fcontext can also be used to manipulate default file context
170 mappings.
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172 semanage permissive can also be used to manipulate whether or not a
173 process type is permissive.
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175 semanage module can also be used to enable/disable/install/remove pol‐
176 icy modules.
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178 semanage boolean can also be used to manipulate the booleans
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181 system-config-selinux is a GUI tool available to customize SELinux pol‐
182 icy settings.
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186 This manual page was auto-generated using sepolicy manpage .
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190 selinux(8), svc_start(8), semanage(8), restorecon(8), chcon(1), sepol‐
191 icy(8) , setsebool(8)
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195svc_start 19-04-25 svc_start_selinux(8)