Linux-Noob Forums

Linux-Noob Forums > Linux Noob > Kernel Related > sysctl net.ipv4.tcp_syncookies command returns unknown key
Full Version: sysctl net.ipv4.tcp_syncookies command returns unknown key
You're currently viewing a stripped down version of our content. View the full version with proper formatting.

Peter_Johan

2013-02-28, 11:21 PM

[root@centos /]# sysctl net.ip4v.tcp_syncookies

error: "net.ip4v.tcp_syncookies" is an unknown key

 

in Centos 6

 

the issue may be that I'm following a slightly old manual (2009) which more often refers to Fedora/RHEL and very rarely Centos.  the key does exist under the path, I'm looking at it..

 

Thanks in advance for your help :-)

Peter_Johan

2013-03-01, 03:14 PM
also, does anyone know a good IRC channel for Linux beginners?

Peter_Johan

2013-03-01, 05:41 PM
ok, I need glasses..  should be ipv4!  well, at least I have joint a forum, even if it's a little quite ..

inittux

2013-03-01, 08:58 PM
Welcome to the forums! :) sorry for late reply. forums haven't been very active. Glad you figured it out. You can join our irc channel. irc.foreverchat.net #linux and the linux mint channel (donno what server though) there seems to be nice people too.

hybrid

2013-03-11, 06:32 PM

Welcome to the forums! We're glad to have you here! :)

 

 

Code:
sysctl net.ip4v.tcp_syncookies

 

You've already noticed and pointed out that the issue here was mistyping ipv4 as ip4v, but I thought I'd clarify that was the issue here for anyone else reading. It happens to us all. :)

Linux-Noob Forums > Linux Noob > Kernel Related > sysctl net.ipv4.tcp_syncookies command returns unknown key