Goooood day everyone again, today I have had another fight with the spam that my client fell victim of. Once upon a time there was not so powerful UTM providing internet to not so crowded office in not so security-aware Central Europe. All would be good and well if not …

Until recently I had never had any need to work with Checkpoint log files without SmartView Tracker. But there is always first time . Client complained on some dropped mail traffic and to even say if there is any problem or not I had to look at relevant logs, not a …

Yesterday I looked at the Checkpoint VPN Secure Client issue . After an upgrade from NGX R65 to R70 VPN client doesn't connect when Visitor mode is enabled . The moment you disable Visitor mode the same client to the same firewall works just fine. This happens often so I bring it …

There is something I didn’t include in the previous post fw monitor command reference about fw monitor as I think it is rather optional and you can do well without it . I talk about using tables in defining filter expressions. INSPECT – proprietary scripting language by the Checkpoint on which …

I once showed SSH login alert the way to send mail alert on successful login by ssh to any Linux-based machine , including Checkpoint firewalls. Now, thanks to folks at cpug.org that draw my attention to it, I will show how to get mail Alert on ANY rule in the …

Recently I was unplesantly presented with "it is not a bug ,it is a feature" case with the Checkpoint . There was some UTM with TS (Total Security) valid license that includes antivirus and antispam services that client paid for and even asked to enable. So far so good. Part of …

The best place to hide something is to place it before your eyes. Recently I discovered a cool feature of the Checkpoint SmartDashboard - ability to print rules directly from the Dashboard , you just go to File -> Print -> Rule Base.. and that's it. Just amazing , I have been using Dashboards throughout …

Backing up firewall configs for disaster recovery is tedious and mundane task. And if you have enough firewalls doing it manually becomes impractical . To address this case I set up a highly secured server that periodically runs script backing up the clients’ firewalls. I use here poll model – this central …

Checkpoint firewalls have 3 means of transferring files in/out - ftp (client ) , SCP (server and client) and SFTP (haven't tried it yet) . At some stage of the debug/upgrade process you will have to move files in either direction. The most secure is SCP protocol. On windows platforms picking the …

Not specific to the Checkpoint but rather any Linux-based system issue Problem usually shows itself in randomly distributed inability of stations to pass the firewall, slowness and other network problems follow. In /var/log/message you see the following record: kernel: Neighbour table overflow. That means ARP table has reached …