Linux/Unix Server Monitoring HowTos

Monitor, protect, manage your Linux and Unix server. Learn how to monitor CPU, hackers, users, network, memory performance & disk availability with our tutorials & guides. ( rss feed ).

What is bastion host? How do I configure bastion host under Linux? How do I create a firewall for a bastion host under any Linux distribution?

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I‘ve Intel PRO/1000 Gigabit Ethernet adapter installed in my server. How do I set network card (NIC) polling and disable interrupts under FreeBSD operating systems to boost network performance for 100M and 1000M network links?

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I don’t want background process to eat all my CPU. I know how to find out CPU utilization but how do I limit the cpu usage of a process under Linux operating system? How do I force a process to limit itself to 25% only?

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Cacti is a network graphing tool similar to MRTG. How do I install and configure common options to collect SNMP data and various other data (such as system load, network link status, hard disk space, logged in users etc) into an RRD?

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How do I install bindgraph to make pretty query statistics about BIND servers?

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