Hi, I was messing around with settings on a test system and following tuning stuff to see the difference but couldn't find the following settings that they were on about: net.inet.tcp.maxtcptw, net.inet.ip.dummynet.max_chain_len and net.inet.ip.fastforwarding.
I tried sysctl -a and sysctl net.inet.ip and found a bunch of settings as root user but those three were missing. Have they been deprecated, hidden or removed? I'm using 64bit opnsense 21.1, and wanted to know how to see/adjust them.
Thanks
Since opnsense is based off pfsense, many of the configurations, hold true. Their reference material is still applicable is some cases as both ultimately are based off FreeBSD.
Sysctl configurations depend on the used FreeBSD kernel version. You need to check the FreeBSD chagelog if they have been removed. AFAIK OPNsense does not do a lot of kernel changes. It is just HardenedBSD (FreeBSD with more security features)