1ncftool_selinux(8) SELinux Policy ncftool ncftool_selinux(8)
2
6 ncftool_selinux - Security Enhanced Linux Policy for the ncftool pro‐
7 cesses
8
10 Security-Enhanced Linux secures the ncftool processes via flexible
11 mandatory access control.
12 The ncftool processes execute with the ncftool_t SELinux type. You can
14 check if you have these processes running by executing the ps command
15 with the -Z qualifier.
16 For example:
18 ps -eZ | grep ncftool_t
20
24 The ncftool_t SELinux type can be entered via the ncftool_exec_t file
25 type.
26 The default entrypoint paths for the ncftool_t domain are the follow‐
28 ing:
29 /usr/bin/ncftool
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 ncftool policy is very flexible allowing users to setup their ncftool
40 processes in as secure a method as possible.
41 The following process types are defined for ncftool:
43 ncftool_t
45 Note: semanage permissive -a ncftool_t can be used to make the process
47 type ncftool_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
50
53 SELinux policy is customizable based on least access required. ncftool
54 policy is extremely flexible and has several booleans that allow you to
55 manipulate the policy and run ncftool with the tightest access possi‐
56 ble.
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
114 The SELinux process type ncftool_t can manage files labeled with the
115 following file types. The paths listed are the default paths for these
116 file types. Note the processes UID still need to have DAC permissions.
117 net_conf_t
119 /etc/hosts[^/]*
121 /etc/yp.conf.*
122 /etc/denyhosts.*
123 /etc/hosts.deny.*
124 /etc/resolv.conf.*
125 /etc/.resolv.conf.*
126 /etc/resolv-secure.conf.*
127 /var/run/systemd/network(/.*)?
128 /etc/sysconfig/networking(/.*)?
129 /etc/sysconfig/network-scripts(/.*)?
130 /etc/sysconfig/network-scripts/.*resolv.conf
131 /var/run/NetworkManager/resolv.conf.*
132 /etc/ethers
133 /etc/ntp.conf
134 /var/run/systemd/resolve/resolv.conf
135 system_conf_t
137 /ostree/repo(/.*)?
139 /etc/yum.repos.d(/.*)?
140 /etc/sysctl.conf(.old)?
141 /etc/sysconfig/ip6?tables.*
142 /etc/ostree/remotes.d(/.*)?
143 /etc/sysconfig/ipvsadm.*
144 /etc/sysconfig/ebtables.*
145 /etc/sysconfig/system-config-firewall.*
146 /ostree/deploy/rhel-atomic-host/deploy(/.*)?
147 systemd_passwd_var_run_t
149 /var/run/systemd/ask-password(/.*)?
151 /var/run/systemd/ask-password-block(/.*)?
152
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 ncftool policy is very flexible allowing users to setup their
162 ncftool processes in as secure a method as possible.
163 The following file types are defined for ncftool:
165 ncftool_exec_t
169 - Set files with the ncftool_exec_t type, if you want to transition an
171 executable to the ncftool_t domain.
172 Note: File context can be temporarily modified with the chcon command.
176 If you want to permanently change the file context you need to use the
177 semanage fcontext command. This will modify the SELinux labeling data‐
178 base. You will need to use restorecon to apply the labels.
179
182 semanage fcontext can also be used to manipulate default file context
183 mappings.
184 semanage permissive can also be used to manipulate whether or not a
186 process type is permissive.
187 semanage module can also be used to enable/disable/install/remove pol‐
189 icy modules.
190 semanage boolean can also be used to manipulate the booleans
192 system-config-selinux is a GUI tool available to customize SELinux pol‐
195 icy settings.
196
199 This manual page was auto-generated using sepolicy manpage .
200
203 selinux(8), ncftool(8), semanage(8), restorecon(8), chcon(1), sepol‐
204 icy(8) , setsebool(8)
205ncftool 19-04-25 ncftool_selinux(8)