Block outgoing connections for certaing uids (root, apache, nobody)

firewall iptables centos centos6 centos5

Try using the numeric UID instead of the name. For example: 

-A OUTPUT -m owner --uid-owner 400 -j DROP

instead of 

-A OUTPUT -m owner --uid-owner apache -j DROP

You can find the UID by typing 

id user

Related

Exclusion of a protected sub-url does not work on Apache 2.4?
IIS Optimization
Correct value for fill factor for clustered indexes with surrogate identity keys
Kubernetes - how to map docker run command-line parameters to kubectl command line
How can I access instance storage on a Windows EC2 instance with an ebs root device?
How do I set cgroup limits for systemd user slices?
hard resetting link exception Emask 0x50 SAct 0x0 SErr 0x4090800 action 0xe frozen
Send trunk directly to vm in HyperV 2012
How to efficiently dump a huge MySQL innodb database?
Learning algebra and harmonic analysis
If $a_n$ goes to zero, can we find signs $s_n$ such that $\sum s_n a_n$ converges?
Prove that every positive semidefinite matrix has nonnegative eigenvalues