Tag Archives: how to

Routing and NAT in Ubuntu

Check if routing between interface is enabled or not with following command: sysctl net.ipv4.ip_forward Output should be as: net.ipv4.ip_forward = 1 If output is not like this then use following command: sysctl net.ipv4.ip_forward=1 Save changes: sysctl -p /etc/sysctl.conf Do the … Continue reading

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Initialized/Reset SIC in checkpoint GAIA

Gateway talks to manager on TCP 18191 (security policy) TCP 18192 (application monitoring). Gateway sends logs to manager on TCP 257. Smartdash board uses TCP 18190 to communicate to manager. How to initialize SIC? To initialized SIC you need to … Continue reading

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How to F5 LTM

How to take capture on F5 LTM: admin@(f5device)(cfg-sync In Sync)(Active)(/Common)(tmos)# tcpdump -i VLAN_901 host 10.127.1.176 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on VLAN_901, link-type EN10MB (Ethernet), capture size 65535 bytes 23:14:41.660482 ARP, Request … Continue reading

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Bluecoat How to:

How to take packet capture on bluecoat ProxySG device: Go to Maintenance> Service Information> Packet captures: You can type ip host x.x.x.x or host x.x.x.x to capture traffic How to download captured packet on bluecoat: Go to Maintenance> Service Information> … Continue reading

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CISCO ASA How to:

How to check ASA version: asa# show version | inc Version Cisco Adaptive Security Appliance Software Version 9.2(4)8 Device Manager Version 7.5(2)153 How to check ASA hardware: asa# show version | inc Hardware Hardware:   ASA5545, 12288 MB RAM, CPU Lynnfield … Continue reading

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Check Point firewall how to

How to get checkpoint version: Gaia admin>show version all admin>fw ver IPSO cp[admin]#fw ver How to check the policy package installed on firewall Gaia (check if you have proper permission to run cli commands) cp[admin]# fw stat HOST POLICY DATE … Continue reading

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Juniper SRX How to:

How to go to operational mode from unix shell in juniper: If you are logged as root then you can go to operational mode with the help of “cli”command. Following prompt is in root after using cli it goes in … Continue reading

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