Angry IP Scanner has released a new version.

And I was named as a contributor 😀

https://github.com/angryip/ipscan/releases/tag/3.9.3

By the way, my ipscan plugins are free software (GNU GPLv3, REUSE compliant) and can be found on Codeberg.

https://codeberg.org/mark22k/ipscan-plugins
https://codeberg.org/mark22k/-/packages/generic/ipscan-plugins/

#Networking #Programming #ipscan #PortScan
#SSH #RouterOS #EchoProtocol #TimeProtocol #CHARGEN #ChargenProtocol #DaytimeProtocol #DNS #Leetspeak #Ping

Monitored SIEM: We're seeing some unusual port scanning activity

Sys Admin: It's me, hi, I'm the problem, it's me

#sysadmin #security #networksecurity #nmap #portscan #firewall

Are there lots of port scan bots on the loose again today? I got over 700 new IP bans in the Fail2Ban recidive jail today. Lot's of IP's from the communistic orc Federation and from China, too. Annoying...

#portscan #bots #fail2ban #server #webhosting

TIL The FreeBSD kernel auto-tarpits (for want of a better word) portscans on your host as soon as they attempt to connect to a closed port. If you see the following in your logs, that’s what’s happening.

"kernel: Limiting closed port RST response from 3877 to 190 packets/sec”

Shodan - looking at you!

You can have more fun using blackhole in sysctl

https://man.freebsd.org/cgi/man.cgi?query=blackhole&sektion=4&manpath=freebsd-release-ports

None of this is a substitute for a firewall.

#FreeBSD #Unix #hosting #portscanners #portscan