X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=sysctl.d%2F50-default.conf;h=14378b24af10b4e57bc9094ef7a3dee4d5d397f3;hb=93b0b88c3a3f9e942aeedcdf5d12585dba61790d;hp=aff99300d945dbe5db24cdaabd56255add6f65ab;hpb=fc6149a6ce7a5560ae239a317b7f43039a3f80fd;p=thirdparty%2Fsystemd.git

diff --git a/sysctl.d/50-default.conf b/sysctl.d/50-default.conf
index aff99300d94..14378b24af1 100644
--- a/sysctl.d/50-default.conf
+++ b/sysctl.d/50-default.conf
@@ -22,16 +22,27 @@ kernel.sysrq = 16
 kernel.core_uses_pid = 1
 
 # Source route verification
-net.ipv4.conf.default.rp_filter = 1
-net.ipv4.conf.all.rp_filter = 1
+net.ipv4.conf.default.rp_filter = 2
+net.ipv4.conf.*.rp_filter = 2
+-net.ipv4.conf.all.rp_filter
 
 # Do not accept source routing
 net.ipv4.conf.default.accept_source_route = 0
-net.ipv4.conf.all.accept_source_route = 0
+net.ipv4.conf.*.accept_source_route = 0
+-net.ipv4.conf.all.accept_source_route
 
 # Promote secondary addresses when the primary address is removed
 net.ipv4.conf.default.promote_secondaries = 1
-net.ipv4.conf.all.promote_secondaries = 1
+net.ipv4.conf.*.promote_secondaries = 1
+-net.ipv4.conf.all.promote_secondaries
+
+# ping(8) without CAP_NET_ADMIN and CAP_NET_RAW
+# The upper limit is set to 2^31-1. Values greater than that get rejected by
+# the kernel because of this definition in linux/include/net/ping.h:
+#   #define GID_T_MAX (((gid_t)~0U) >> 1)
+# That's not so bad because values between 2^31 and 2^32-1 are reserved on
+# systemd-based systems anyway: https://systemd.io/UIDS-GIDS.html#summary
+-net.ipv4.ping_group_range = 0 2147483647
 
 # Fair Queue CoDel packet scheduler to fight bufferbloat
 net.core.default_qdisc = fq_codel
@@ -39,3 +50,7 @@ net.core.default_qdisc = fq_codel
 # Enable hard and soft link protection
 fs.protected_hardlinks = 1
 fs.protected_symlinks = 1
+
+# Enable regular file and FIFO protection
+fs.protected_regular = 1
+fs.protected_fifos = 1