diff --git a/.config/sysctl.conf b/.config/sysctl.conf
index 25f0d6c..51e03f3 100644
--- a/.config/sysctl.conf
+++ b/.config/sysctl.conf
@@ -1,3 +1,9 @@
+fs.protected_hardlinks = 1
+fs.protected_symlinks = 1
 kernel.dmesg_restrict = 0
 kernel.sysrq = 1
+net.ipv4.tcp_fin_timeout = 15
+net.ipv4.tcp_keepalive_intvl = 15
+net.ipv4.tcp_keepalive_probes = 3
 net.ipv4.tcp_syncookies = 1
+net.ipv4.tcp_tw_recycle = 1