1rssh_selinux(8) SELinux Policy rssh rssh_selinux(8)
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6 rssh_selinux - Security Enhanced Linux Policy for the rssh processes
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9 Security-Enhanced Linux secures the rssh processes via flexible manda‐
10 tory access control.
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12 The rssh processes execute with the rssh_t SELinux type. You can check
13 if you have these processes running by executing the ps command with
14 the -Z qualifier.
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16 For example:
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18 ps -eZ | grep rssh_t
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23 The rssh_t SELinux type can be entered via the rssh_exec_t file type.
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25 The default entrypoint paths for the rssh_t domain are the following:
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27 /usr/bin/rssh
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30 SELinux defines process types (domains) for each process running on the
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33 You can see the context of a process using the -Z option to ps
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35 Policy governs the access confined processes have to files. SELinux
36 rssh policy is very flexible allowing users to setup their rssh pro‐
37 cesses in as secure a method as possible.
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39 The following process types are defined for rssh:
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41 rssh_t
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43 Note: semanage permissive -a rssh_t can be used to make the process
44 type rssh_t permissive. SELinux does not deny access to permissive
45 process types, but the AVC (SELinux denials) messages are still gener‐
46 ated.
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50 SELinux policy is customizable based on least access required. rssh
51 policy is extremely flexible and has several booleans that allow you to
52 manipulate the policy and run rssh with the tightest access possible.
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56 If you want to allow all domains to use other domains file descriptors,
57 you must turn on the allow_domain_fd_use boolean. Enabled by default.
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59 setsebool -P allow_domain_fd_use 1
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63 If you want to allow sysadm to debug or ptrace all processes, you must
64 turn on the allow_ptrace boolean. Disabled by default.
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66 setsebool -P allow_ptrace 1
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70 If you want to allow system to run with NIS, you must turn on the
71 allow_ypbind boolean. Disabled by default.
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73 setsebool -P allow_ypbind 1
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77 If you want to allow all domains to have the kernel load modules, you
78 must turn on the domain_kernel_load_modules boolean. Disabled by
79 default.
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81 setsebool -P domain_kernel_load_modules 1
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85 If you want to allow all domains to execute in fips_mode, you must turn
86 on the fips_mode boolean. Enabled by default.
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88 setsebool -P fips_mode 1
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92 If you want to enable reading of urandom for all domains, you must turn
93 on the global_ssp boolean. Disabled by default.
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95 setsebool -P global_ssp 1
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100 The SELinux process type rssh_t can manage files labeled with the fol‐
101 lowing file types. The paths listed are the default paths for these
102 file types. Note the processes UID still need to have DAC permissions.
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104 initrc_tmp_t
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107 mnt_t
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109 /mnt(/[^/]*)
110 /mnt(/[^/]*)?
111 /rhev(/[^/]*)?
112 /media(/[^/]*)
113 /media(/[^/]*)?
114 /etc/rhgb(/.*)?
115 /media/.hal-.*
116 /net
117 /afs
118 /rhev
119 /misc
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121 rssh_rw_t
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124 tmp_t
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126 /tmp
127 /usr/tmp
128 /var/tmp
129 /tmp-inst
130 /var/tmp-inst
131 /var/tmp/vi.recover
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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 rssh policy is very flexible allowing users to setup their rssh
142 processes in as secure a method as possible.
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144 STANDARD FILE CONTEXT
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146 SELinux defines the file context types for the rssh, if you wanted to
147 store files with these types in a diffent paths, you need to execute
148 the semanage command to sepecify alternate labeling and then use
149 restorecon to put the labels on disk.
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151 semanage fcontext -a -t rssh_rw_t '/srv/myrssh_content(/.*)?'
152 restorecon -R -v /srv/myrssh_content
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154 Note: SELinux often uses regular expressions to specify labels that
155 match multiple files.
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157 The following file types are defined for rssh:
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161 rssh_exec_t
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163 - Set files with the rssh_exec_t type, if you want to transition an
164 executable to the rssh_t domain.
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168 rssh_ro_t
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170 - Set files with the rssh_ro_t type, if you want to treat the files as
171 rssh read/only content.
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175 rssh_rw_t
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177 - Set files with the rssh_rw_t type, if you want to treat the files as
178 rssh read/write content.
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182 Note: File context can be temporarily modified with the chcon command.
183 If you want to permanently change the file context you need to use the
184 semanage fcontext command. This will modify the SELinux labeling data‐
185 base. You will need to use restorecon to apply the labels.
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189 semanage fcontext can also be used to manipulate default file context
190 mappings.
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192 semanage permissive can also be used to manipulate whether or not a
193 process type is permissive.
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195 semanage module can also be used to enable/disable/install/remove pol‐
196 icy modules.
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198 semanage boolean can also be used to manipulate the booleans
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201 system-config-selinux is a GUI tool available to customize SELinux pol‐
202 icy settings.
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206 This manual page was auto-generated using sepolicy manpage .
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210 selinux(8), rssh(8), semanage(8), restorecon(8), chcon(1) , setse‐
211 bool(8)
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215rssh 15-06-03 rssh_selinux(8)