Advanced ( Expert) Linux / Unix System Administrator
These tutorials assumes that you have rock solid understanding of Unix like operating systems and very comfortable with most aspects of the Unix/Linux such as networking/distributed computing environments,routing, firewalls, servers, client/server programming, and the design of consistent network-wide filesystems, load-balancers, security and much more. ( rss feed )
properly configured firewall can greatly increase the security of RHEL / CentOS based system. How do I configure a shorewall based firewall for CentOS or Red Hat Enterprise Linux system with an Internet connection? How do I install and configure shorewall to protect the following small business network?
ow do I install the ipset extension to Netfilter/iptables on Red Hat Enterprise Linux / CentOS Linux v6.x?
have MySQL database system running on FreeBSD. The server has multiple ip address. The mysqld used by many websites hosted on two other CentOS based servers. I would like to bind MySQL sever running on Unix / Linux server to more than one IP address such as 18.104.22.168, 22.214.171.124, and 126.96.36.199. How can I bind mysqld to multiple ips?
am moving a raid array called /dev/md0 from serverA to serverB. On serverB /dev/md0 is already in use. How do I rename a RAID array from /dev/md0 to /dev/md2?
I‘ve setup FTP server at port 21 and 40000:41000 as range of passive ftp. How do I control outgoing traffic for the FTP server/service running on my Debian/CentOS/Ubuntu Linux server?
I know how to setup a firewall under RHEL / Fedora and CentOS Linux quickly. How do I setup a host-based firewall under Debian or Ubuntu Linux server or desktop system? How do I install Shoreline firewall (Shorewall) utility to build firewall based on the Netfilter under Debian or Ubuntu Linux?