Linux and Unix cheatsheet
Hardening the TCP/IP stack to SYN attacks
How to detect a SYN attack It is very simple to detect SYN attacks. The netstat command shows us how many connections are currently in the h...
Linux Netfilter tweaks for High traffic servers
If you are serving a high traffic web/DNS server, and recently having PING loss to the server and not all HTTP request were successful to i...
Remove weak ciphers from SSH Server
Use nmap to check current loaded ciphers. Download the file http://nmap.org/svn/scripts/ssh2-enum-algos.nse local nmap = requ...
Solaris 11.2 LDOM auto-boot ?
How to make sure the LDOM was set to auto-boot when the physical machine reboots?
show current auto-boot status
$ eeprom | grep auto-boot
Set auto-boot
$ auto-boot?=true
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