Changes between Version 30 and Version 31 of Csle2022/Agenda/FW

Timestamp:

Nov 29, 2022, 10:08:56 PM (3 years ago)

Author:

geethike

Comment:

--

Csle2022/Agenda/FW

@@ -183 +183 @@
 [[Image(image3.png)]]
 
-Can you guess the issue? hope you will.
-
-
-
-'''3. Deleting a rule from the iptable :'''
+Can you guess the issue? hope you will.This is due to rules are executed from top to bottom. Enter following command to see the rules order(Numbers).
+{{{
+sudo iptables -L --line-numbers
+}}}
+
+[[Image(image4.png)]]
+
+You have 2 fixes to resolve this, Either add SSH Rule to Top Or Deleting DROP All rule. Replace '''-A'''
+with '''-I'''. Now check the IP tables.
+
+[[Image(image5.png)]]
+
+'''3. Add a rule to TOP of the iptable :'''
+{{{
+sudo iptables -I INPUT -s 192.168.1.4 -p tcp --dport 22 -j ACCEPT
+}}}
+
+
+
+'''4. Deleting a rule from the iptable :'''
 
 '''Syntax:-'''
@@ -200 +215 @@
 Remember the rules number starts from 1
 
-'''4. Saving your configuration :'''
+'''5. Saving your configuration :'''
 This part is unnecessary if you are implementing it on a personal computer which is not a server, but if
 you are implementing a firewall on a server, then there are high chances that your server might get corrupted and