• Poor IPS perf - "Multithreaded" snort not working?

    Hi all. I have a custom built router using a Gigabyte J1900N-D3V board. To cut it short, inter-VLAN traffic is limited to about 200mbit, but the CPU utilization only ever hits ~30%. Of course standard snort does not take advantage of the multiple cores…
  • Snort Exclusion not working

    Hi, I am trying to run speedtests via speedtest_cli on one of my boxes to regularly check the actually available speed my ISP provides. Now the download speed is limited by my Sophos UTM box (9.510-4) by snort going to 100%. If I turn off IPS I…
  • DROWN Vulnerability: Blocking SSLv2 with UTM9

    Hello, I would like to write a firewall rule to drop all SSLv2 traffic attempting to travel through our UTM because of the DROWN vulnerability . We have a couple of servers susceptible to the attack and it would be nice to first block the attack at…