1squid_script_selinux(8) SELinux Policy squid_script squid_script_selinux(8)
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6 squid_script_selinux - Security Enhanced Linux Policy for the
7 squid_script processes
8
10 Security-Enhanced Linux secures the squid_script processes via flexible
11 mandatory access control.
12 The squid_script processes execute with the squid_script_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep squid_script_t
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24 The squid_script_t SELinux type can be entered via the shell_exec_t,
25 squid_script_exec_t, squid_script_exec_t file types.
26 The default entrypoint paths for the squid_script_t domain are the fol‐
28 lowing:
29 /bin/d?ash, /bin/zsh.*, /bin/ksh.*, /usr/bin/d?ash, /usr/bin/ksh.*,
31 /usr/bin/zsh.*, /bin/esh, /bin/mksh, /bin/sash, /bin/tcsh, /bin/yash,
32 /bin/bash, /bin/fish, /bin/bash2, /usr/bin/esh, /usr/bin/sash,
33 /usr/bin/tcsh, /usr/bin/yash, /usr/bin/mksh, /usr/bin/fish,
34 /usr/bin/bash, /sbin/nologin, /usr/sbin/sesh, /usr/bin/bash2,
35 /usr/sbin/smrsh, /usr/bin/scponly, /usr/sbin/nologin,
36 /usr/libexec/sesh, /usr/sbin/scponlyc, /usr/bin/git-shell,
37 /usr/libexec/sudo/sesh, /usr/bin/cockpit-bridge, /usr/libexec/cockpit-
38 agent, /usr/libexec/git-core/git-shell, /usr/share/light‐
39 squid/cgi(/.*)?, /usr/lib/squid/cachemgr.cgi, /usr/share/light‐
40 squid/cgi(/.*)?, /usr/lib/squid/cachemgr.cgi
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43 SELinux defines process types (domains) for each process running on the
44 system
45 You can see the context of a process using the -Z option to ps
47 Policy governs the access confined processes have to files. SELinux
49 squid_script policy is very flexible allowing users to setup their
50 squid_script processes in as secure a method as possible.
51 The following process types are defined for squid_script:
53 squid_script_t
55 Note: semanage permissive -a squid_script_t can be used to make the
57 process type squid_script_t permissive. SELinux does not deny access to
58 permissive process types, but the AVC (SELinux denials) messages are
59 still generated.
60
63 SELinux policy is customizable based on least access required.
64 squid_script policy is extremely flexible and has several booleans that
65 allow you to manipulate the policy and run squid_script with the tight‐
66 est access possible.
67 If you want to deny any process from ptracing or debugging any other
71 processes, you must turn on the deny_ptrace boolean. Enabled by
72 default.
73 setsebool -P deny_ptrace 1
75 If you want to allow any process to mmap any file on system with
79 attribute file_type, you must turn on the domain_can_mmap_files bool‐
80 ean. Enabled by default.
81 setsebool -P domain_can_mmap_files 1
83 If you want to allow all domains write to kmsg_device, while kernel is
87 executed with systemd.log_target=kmsg parameter, you must turn on the
88 domain_can_write_kmsg boolean. Disabled by default.
89 setsebool -P domain_can_write_kmsg 1
91 If you want to allow all domains to use other domains file descriptors,
95 you must turn on the domain_fd_use boolean. Enabled by default.
96 setsebool -P domain_fd_use 1
98 If you want to allow all domains to have the kernel load modules, you
102 must turn on the domain_kernel_load_modules boolean. Disabled by
103 default.
104 setsebool -P domain_kernel_load_modules 1
106 If you want to allow all domains to execute in fips_mode, you must turn
110 on the fips_mode boolean. Enabled by default.
111 setsebool -P fips_mode 1
113 If you want to enable reading of urandom for all domains, you must turn
117 on the global_ssp boolean. Disabled by default.
118 setsebool -P global_ssp 1
120 If you want to allow httpd cgi support, you must turn on the
124 httpd_enable_cgi boolean. Disabled by default.
125 setsebool -P httpd_enable_cgi 1
127 If you want to allow system to run with NIS, you must turn on the
131 nis_enabled boolean. Disabled by default.
132 setsebool -P nis_enabled 1
134 If you want to allow confined applications to use nscd shared memory,
138 you must turn on the nscd_use_shm boolean. Disabled by default.
139 setsebool -P nscd_use_shm 1
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145 The SELinux process type squid_script_t can manage files labeled with
146 the following file types. The paths listed are the default paths for
147 these file types. Note the processes UID still need to have DAC per‐
148 missions.
149 squid_rw_content_t
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155 SELinux requires files to have an extended attribute to define the file
156 type.
157 You can see the context of a file using the -Z option to ls
159 Policy governs the access confined processes have to these files.
161 SELinux squid_script policy is very flexible allowing users to setup
162 their squid_script processes in as secure a method as possible.
163 The following file types are defined for squid_script:
165 squid_script_exec_t
169 - Set files with the squid_script_exec_t type, if you want to transi‐
171 tion an executable to the squid_script_t domain.
172 Paths:
175 /usr/share/lightsquid/cgi(/.*)?, /usr/lib/squid/cachemgr.cgi
176 Note: File context can be temporarily modified with the chcon command.
179 If you want to permanently change the file context you need to use the
180 semanage fcontext command. This will modify the SELinux labeling data‐
181 base. You will need to use restorecon to apply the labels.
182
185 semanage fcontext can also be used to manipulate default file context
186 mappings.
187 semanage permissive can also be used to manipulate whether or not a
189 process type is permissive.
190 semanage module can also be used to enable/disable/install/remove pol‐
192 icy modules.
193 semanage boolean can also be used to manipulate the booleans
195 system-config-selinux is a GUI tool available to customize SELinux pol‐
198 icy settings.
199
202 This manual page was auto-generated using sepolicy manpage .
203
206 selinux(8), squid_script(8), semanage(8), restorecon(8), chcon(1),
207 sepolicy(8) , setsebool(8)
208squid_script 19-04-25 squid_script_selinux(8)