1pam_timestamp_selinux(8) SELinux Policy pam_timestamp pam_timestamp_selinux(8)
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6 pam_timestamp_selinux - Security Enhanced Linux Policy for the
7 pam_timestamp processes
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10 Security-Enhanced Linux secures the pam_timestamp processes via flexi‐
11 ble mandatory access control.
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13 The pam_timestamp processes execute with the pam_timestamp_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 pam_timestamp_t
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24 The pam_timestamp_t SELinux type can be entered via the pam_time‐
25 stamp_exec_t file type.
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27 The default entrypoint paths for the pam_timestamp_t domain are the
28 following:
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30 /sbin/pam_timestamp_check, /usr/sbin/pam_timestamp_check
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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 pam_timestamp policy is very flexible allowing users to setup their
40 pam_timestamp processes in as secure a method as possible.
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42 The following process types are defined for pam_timestamp:
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44 pam_timestamp_t
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46 Note: semanage permissive -a pam_timestamp_t can be used to make the
47 process type pam_timestamp_t permissive. SELinux does not deny access
48 to 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 pam_timestamp policy is extremely flexible and has several booleans
55 that allow you to manipulate the policy and run pam_timestamp with the
56 tightest access possible.
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60 If you want to allow users to resolve user passwd entries directly from
61 ldap rather then using a sssd server, you must turn on the authlo‐
62 gin_nsswitch_use_ldap boolean. Disabled by default.
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64 setsebool -P authlogin_nsswitch_use_ldap 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
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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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121 If you want to allow confined applications to run with kerberos, you
122 must turn on the kerberos_enabled boolean. Enabled by default.
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124 setsebool -P kerberos_enabled 1
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128 If you want to allow system to run with NIS, you must turn on the
129 nis_enabled boolean. Disabled by default.
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131 setsebool -P nis_enabled 1
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135 If you want to allow confined applications to use nscd shared memory,
136 you must turn on the nscd_use_shm boolean. Disabled by default.
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138 setsebool -P nscd_use_shm 1
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143 The SELinux process type pam_timestamp_t can manage files labeled with
144 the following file types. The paths listed are the default paths for
145 these file types. Note the processes UID still need to have DAC per‐
146 missions.
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148 pam_timestamp_tmp_t
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153 SELinux requires files to have an extended attribute to define the file
154 type.
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156 You can see the context of a file using the -Z option to ls
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158 Policy governs the access confined processes have to these files.
159 SELinux pam_timestamp policy is very flexible allowing users to setup
160 their pam_timestamp processes in as secure a method as possible.
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162 STANDARD FILE CONTEXT
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164 SELinux defines the file context types for the pam_timestamp, if you
165 wanted to store files with these types in a diffent paths, you need to
166 execute the semanage command to sepecify alternate labeling and then
167 use restorecon to put the labels on disk.
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169 semanage fcontext -a -t pam_timestamp_tmp_t '/srv/mypam_timestamp_con‐
170 tent(/.*)?'
171 restorecon -R -v /srv/mypam_timestamp_content
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173 Note: SELinux often uses regular expressions to specify labels that
174 match multiple files.
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176 The following file types are defined for pam_timestamp:
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180 pam_timestamp_exec_t
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182 - Set files with the pam_timestamp_exec_t type, if you want to transi‐
183 tion an executable to the pam_timestamp_t domain.
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186 Paths:
187 /sbin/pam_timestamp_check, /usr/sbin/pam_timestamp_check
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190 pam_timestamp_tmp_t
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192 - Set files with the pam_timestamp_tmp_t type, if you want to store pam
193 timestamp temporary files in the /tmp directories.
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197 Note: File context can be temporarily modified with the chcon command.
198 If you want to permanently change the file context you need to use the
199 semanage fcontext command. This will modify the SELinux labeling data‐
200 base. You will need to use restorecon to apply the labels.
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204 semanage fcontext can also be used to manipulate default file context
205 mappings.
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207 semanage permissive can also be used to manipulate whether or not a
208 process type is permissive.
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210 semanage module can also be used to enable/disable/install/remove pol‐
211 icy modules.
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213 semanage boolean can also be used to manipulate the booleans
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216 system-config-selinux is a GUI tool available to customize SELinux pol‐
217 icy settings.
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221 This manual page was auto-generated using sepolicy manpage .
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225 selinux(8), pam_timestamp(8), semanage(8), restorecon(8), chcon(1),
226 sepolicy(8) , setsebool(8)
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230pam_timestamp 19-04-25 pam_timestamp_selinux(8)