1qmail_lspawn_selinux(8) SELinux Policy qmail_lspawn qmail_lspawn_selinux(8)
2
6 qmail_lspawn_selinux - Security Enhanced Linux Policy for the
7 qmail_lspawn processes
8
10 Security-Enhanced Linux secures the qmail_lspawn processes via flexible
11 mandatory access control.
12 The qmail_lspawn processes execute with the qmail_lspawn_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 qmail_lspawn_t
20
24 The qmail_lspawn_t SELinux type can be entered via the
25 qmail_lspawn_exec_t file type.
26 The default entrypoint paths for the qmail_lspawn_t domain are the fol‐
28 lowing:
29 /var/qmail/bin/qmail-lspawn
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 qmail_lspawn policy is very flexible allowing users to setup their
40 qmail_lspawn processes in as secure a method as possible.
41 The following process types are defined for qmail_lspawn:
43 qmail_lspawn_t
45 Note: semanage permissive -a qmail_lspawn_t can be used to make the
47 process type qmail_lspawn_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
53 SELinux policy is customizable based on least access required.
54 qmail_lspawn policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run qmail_lspawn with the tight‐
56 est access possible.
57 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.
63 setsebool -P deny_ptrace 1
65 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.
71 setsebool -P domain_can_mmap_files 1
73 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.
79 setsebool -P domain_can_write_kmsg 1
81 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.
86 setsebool -P domain_fd_use 1
88 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
93 default.
94 setsebool -P domain_kernel_load_modules 1
96 If you want to allow all domains to execute in fips_mode, you must turn
100 on the fips_mode boolean. Enabled by default.
101 setsebool -P fips_mode 1
103 If you want to enable reading of urandom for all domains, you must turn
107 on the global_ssp boolean. Disabled by default.
108 setsebool -P global_ssp 1
110 If you want to support ecryptfs home directories, you must turn on the
114 use_ecryptfs_home_dirs boolean. Disabled by default.
115 setsebool -P use_ecryptfs_home_dirs 1
117 If you want to support fusefs home directories, you must turn on the
121 use_fusefs_home_dirs boolean. Disabled by default.
122 setsebool -P use_fusefs_home_dirs 1
124 If you want to support NFS home directories, you must turn on the
128 use_nfs_home_dirs boolean. Disabled by default.
129 setsebool -P use_nfs_home_dirs 1
131 If you want to support SAMBA home directories, you must turn on the
135 use_samba_home_dirs boolean. Disabled by default.
136 setsebool -P use_samba_home_dirs 1
138
142 The SELinux process type qmail_lspawn_t can manage files labeled with
143 the following file types. The paths listed are the default paths for
144 these file types. Note the processes UID still need to have DAC per‐
145 missions.
146 cifs_t
148 dovecot_spool_t
151 /var/spool/dovecot(/.*)?
153 ecryptfs_t
155 /home/[^/]+/.Private(/.*)?
157 /home/[^/]+/.ecryptfs(/.*)?
158 fusefs_t
160 /var/run/user/[^/]*/gvfs
162 mail_home_rw_t
164 /root/Maildir(/.*)?
166 /root/.esmtp_queue(/.*)?
167 /home/[^/]+/.maildir(/.*)?
168 /home/[^/]+/Maildir(/.*)?
169 /home/[^/]+/.esmtp_queue(/.*)?
170 nfs_t
172 user_home_t
175 /home/[^/]+/.+
177
180 SELinux requires files to have an extended attribute to define the file
181 type.
182 You can see the context of a file using the -Z option to ls
184 Policy governs the access confined processes have to these files.
186 SELinux qmail_lspawn policy is very flexible allowing users to setup
187 their qmail_lspawn processes in as secure a method as possible.
188 The following file types are defined for qmail_lspawn:
190 qmail_lspawn_exec_t
194 - Set files with the qmail_lspawn_exec_t type, if you want to transi‐
196 tion an executable to the qmail_lspawn_t domain.
197 Note: File context can be temporarily modified with the chcon command.
201 If you want to permanently change the file context you need to use the
202 semanage fcontext command. This will modify the SELinux labeling data‐
203 base. You will need to use restorecon to apply the labels.
204
207 semanage fcontext can also be used to manipulate default file context
208 mappings.
209 semanage permissive can also be used to manipulate whether or not a
211 process type is permissive.
212 semanage module can also be used to enable/disable/install/remove pol‐
214 icy modules.
215 semanage boolean can also be used to manipulate the booleans
217 system-config-selinux is a GUI tool available to customize SELinux pol‐
220 icy settings.
221
224 This manual page was auto-generated using sepolicy manpage .
225
228 selinux(8), qmail_lspawn(8), semanage(8), restorecon(8), chcon(1),
229 sepolicy(8) , setsebool(8)
230qmail_lspawn 19-04-25 qmail_lspawn_selinux(8)