Differences between revisions 1 and 4 (spanning 3 versions)

iptables

Administration tool for IPv4/IPv6 packet filtering and NAT

Block IP address

   1 cat /var/log/auth.log | grep Failed
   2 iptables -A INPUT -s 14.39.42.133 -j DROP
   3 iptables -L
   4 apt install whois
   5 whois 14.39.42.133

-  ⇤ ← Revision 1 as of 2023-09-29 08:51:00 → 
  Size: 171
  Editor: vitor
  Comment:
+   ← Revision 4 as of 2023-09-29 08:58:08 → ⇥
  Size: 261
  Editor: vitor
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 7:
+cat /var/log/auth.log | grep Failed
-Line 8:
+Line 9:
+iptables -L
apt install whois
whois 14.39.42.133