/etc/sysctl.conf

I know how to disable beep sound under Linux, but the settings are not working under FreeBSD laptop. How do I disable beep sound on FreeBSD operating system?

{ 5 comments }

Many commands accepts username and passwords on the command line and ps, top, sockstat and many commands can display this information to all users on the system. How do I prevent users from seeing information about processes that are being run under another UID to avoid information leakage under FreeBSD operating systems?

{ 9 comments }

I‘ve two servers located in two different data center. Both server deals with a lot of concurrent large file transfers. But network performance is very poor for large files and performance degradation take place with a large files. How do I tune TCP under Linux to solve this problem?

{ 34 comments }

I‘m not able to ping from FreeBSD prison (jail). I’m able to resolve the names or use ftp / http for ports but ping and traceroute access is disabled. How do I allow virtualized jail application / users to perform traceroute and ping commands?

{ 0 comments }

Only software developers legitimately need to access core files and none of my production web server requires a core dump. How do I disable core dumps on Debian / CentOS / RHEL / Fedora Linux to save large amounts of disk space?

{ 6 comments }

Q. How do I get rid of an error message that read as – “Page allocation failure”?

{ 1 comment }

How do I enable IP forwarding under RHEL / Red Hat / Fedora / CentOS Linux operating systems?

{ 1 comment }