SEM – SPAMfighter Exchange Module – Installation and Configuration with Exchange 2013
KB ID 0000824 Problem “I seem to get a lot of spam”, and “I get a lot more spam than I used to” are right up there with “My computer is running slow”. It’s a problem that, eats up users time and fills your mail stores with junk, and time/disk space costs money. SEM is tiny! In a world where a graphics driver is now over 100MB the entire install suite is less than 11MB. This is going into my...
Cisco ASA – Only Allow Mail Servers SMTP Outbound
KB ID 0000172 Problem It’s not unusual for nasty Virus’s and Malware once they have infected a machine, to set up outbound communications on the mail protocol SMTP (TCP Port 25), which can lead to your public address being blacklisted. So it’s considered good practice to stop all your clients getting mail access outbound through your firewall, while still allowing your mail server. Note: On Cisco firewall’s,...
Blocking Google Talk (Cisco ASA)
KB ID 0000323 Problem You want to block access to Google Talk, but not disrupt other services like Google Search and Gmail. Solution Yes, you could write a REGEX and block it with an MPF, like I did here, to block Facebook. But Google Talk only runs on 4 servers and uses 4 ports. 1. Connect to the Cisco ASA, and go to configure terminal mode. PetesASA> PetesASA> en Password: ******** PetesASA# configure terminal...