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authorStephen Hemminger <stephen@networkplumber.org>2020-04-21 13:34:48 -0700
committerDavid S. Miller <davem@davemloft.net>2020-04-22 19:29:26 -0700
commit5cc4adbcfcad8a85fb19216c53bfc4e9fd9f6c7d (patch)
tree30d69c7ca10d2a0ef91437c6331d4878bf04abbd /Documentation
parent609120c52db529db7a64daf4cc3aaa59dd4a44ef (diff)
downloadlinux-5cc4adbcfcad8a85fb19216c53bfc4e9fd9f6c7d.tar.bz2
Documentation: add documentation of ping_group_range
Support for non-root users to send ICMP ECHO requests was added back in Linux 3.0 kernel, but the documentation for the sysctl to enable it has been missing. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/networking/ip-sysctl.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 6fcfd313dbe4..9375324aa8e1 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -983,6 +983,13 @@ ip_early_demux - BOOLEAN
reduces overall throughput, in such case you should disable it.
Default: 1
+ping_group_range - 2 INTEGERS
+ Restrict ICMP_PROTO datagram sockets to users in the group range.
+ The default is "1 0", meaning, that nobody (not even root) may
+ create ping sockets. Setting it to "100 100" would grant permissions
+ to the single group. "0 4294967295" would enable it for the world, "100
+ 4294967295" would enable it for the users, but not daemons.
+
tcp_early_demux - BOOLEAN
Enable early demux for established TCP sockets.
Default: 1