Browsing All Posts filed under »Troubleshootings«

Custom Monitoring of Cisco ASA with Lynx and Cacti

May 6, 2014

10

On packetpushers.net somebody wrote an articel about automatically get the outputs of show command of the cisco asa with lynx. That makes it possible to see if a specific counter for a feature, service or process or just interface counter changes, mainly increases, but you cannot see the size of the increase. In troubleshooting it […]

Palo Alto troubleshooting commands

December 10, 2013

4

Its now a beautiful saturday afternoon outside and I sit here in this boring room and made this post about useful palo alto commands, that can help us in case of a problem arises. There is no wind, I wanted today go to windsurf… With my requirements for any networking layer 3 security device I […]

Lynx for Cisco ASA Management

December 10, 2013

3

Yes this is madness! A really old school browser can help me in managing cisco asa firewalls! I have just found this link, since I am developing perl scripts to manage cisco asa firewalls. http://packetpushers.net/interacting-with-the-cisco-asa-cli-using-the-https-interface/ Lynx saves about 50 lines of perl code for me and works much more faster as my perl script with […]

Cisco ASA troubleshooting commands

September 18, 2013

19

With my requirements for any networking layer 3 security device I collected the basic commands that you have to know or you will not be able to manage your device. 1.0 Check the basic settings and firewall states Check the system status Check the hardware performance Check the High Availability state Check the session table […]

perl script to query cisco asa

September 17, 2013

0

I wanted to issue show command on multiple firewalls without any expensive software. I have found a script here https://docs.google.com/document/d/1Q0TfyezOTCKZ7DF2kPBps_7LG80D3BJLrFDuOwBUZNI/edit?pli=1 This script is good and can be used as a base. I have changed it a bit. See the pic. I should not hide the codes in pic ;-) . It is here in the […]

Firewall topology within a second – V2.0

September 16, 2013

5

There are time consuming jobs like creating a topology about the network of big companies, if they have an issue or some problem or it should be just dokumented as our ISO27001 Standard expects and it must be always up-to-date… I created a script that uses perl to build from the cisco asa firewall running […]

Analysing Cisco ASA connection table

September 16, 2013

10

The “show connection all” command shows the actual session table of a Cisco ASA firewall. If the output is not more million entry you can create a top list from it with a perl script I made. (Actually you can work with an output of more million entry as well, but it may require more […]

Useful Checkpoint commands

November 25, 2010

2

Checkpoint is not a cli based firewall, the cli is generally (in the daily life) not used. What the admin wants, can do through the GUI. For troubleshooting purposes or just query something there are some useful commands. In this list I tried to collect what I already had to use (or wanted to try […]

Troubleshooting PPPoE on PIX

November 24, 2010

0

This document is not up to date as the firewall is PIX. Maybe the ASA codes have the same command as this old PIX. I did not have time to test it. Use the following commands to check your PPPoE interface: show ip address outside pppoe show vpdn session pppoe show vpdn pppinterface show vpdn […]

Analyse log messages of the firewall

November 24, 2010

0

For the following examples to use you will need unix (awk, grep, sort, uniq,…) commands. TASK1. Filter to the Dual ISP feature’s syslog messages from pix_log.txt file that is a log file for a day. Solution: Log file name: pix_log.txt 1. Collect Dual ISP feature’s syslog messages from Cisco UniverCD: 622001 327001 – 327003 422004 […]