diff options
Diffstat (limited to 'man/systemd.exec.xml')
| -rw-r--r-- | man/systemd.exec.xml | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml index c1f47e84e6..3e1a2cb224 100644 --- a/man/systemd.exec.xml +++ b/man/systemd.exec.xml @@ -1155,7 +1155,9 @@ first character of the list is <literal>~</literal>, the effect is inverted: only the listed system calls will result in immediate process termination (blacklisting). If running in - user mode and this option is used, + user mode, or in system mode, but without the + <constant>CAP_SYS_ADMIN</constant> capabiblity (e.g. setting + <varname>User=nobody</varname>), <varname>NoNewPrivileges=yes</varname> is implied. This feature makes use of the Secure Computing Mode 2 interfaces of the kernel ('seccomp filtering') and is useful for enforcing a @@ -1214,8 +1216,10 @@ systems. The special <constant>native</constant> identifier implicitly maps to the native architecture of the system (or more strictly: to the architecture the system manager is - compiled for). If running in user mode and this option is - used, <varname>NoNewPrivileges=yes</varname> is implied. Note + compiled for). If running in user mode, or in system mode, + but without the <constant>CAP_SYS_ADMIN</constant> + capabiblity (e.g. setting <varname>User=nobody</varname>), + <varname>NoNewPrivileges=yes</varname> is implied. Note that setting this option to a non-empty list implies that <constant>native</constant> is included too. By default, this option is set to the empty list, i.e. no architecture system @@ -1244,8 +1248,10 @@ <function>socketpair()</function> (which creates connected AF_UNIX sockets only) are unaffected. Note that this option has no effect on 32-bit x86 and is ignored (but works - correctly on x86-64). If running in user mode and this option - is used, <varname>NoNewPrivileges=yes</varname> is implied. By + correctly on x86-64). If running in user mode, or in system + mode, but without the <constant>CAP_SYS_ADMIN</constant> + capabiblity (e.g. setting <varname>User=nobody</varname>), + <varname>NoNewPrivileges=yes</varname> is implied. By default, no restriction applies, all address families are accessible to processes. If assigned the empty string, any previous list changes are undone.</para> |