diff --git a/IT/linux/index.md b/IT/linux/index.md
index 89ece23..fa8a6f2 100644
--- a/IT/linux/index.md
+++ b/IT/linux/index.md
@@ -54,4 +54,3 @@ systemd.unit=emergency.target
 ## disable IPV6
 
 `sysctl -b net.ipv6.conf.all.disable_ipv6=1`
-