linux:sysadmin:system_infos
Table of Contents
System Information
Performance stats see http://dtrace.org/blogs/brendan/2012/03/07/the-use-method-linux-performance-checklist/
General
Show system uptime:
uptime
Show time, date and timezone:
date
Information about you current Linux release:
cat /etc/issue
or
lsb_release -a
Or Red Hat specific version information:
cat /etc/redhat-release
System Monitoring
Show all processes running on the system:
ps -aux
Show system load and usage
top
Show memory (RAM and Swap) usage (-m is for Megabyte)
free -m
Show infos about Kernel and Modules
Which kernel versions are installed?
rpm -qa | grep kernel
Which kernel version is actually used?
uname -a
Show bootup messages:
dmesg
Networking
Show interfaces configurations
ifconfig
Show routing table:
route -n
Get information about DNS:
dig <IP or hostname>
Users
Get information about a system user:
finger <username>
Memory
Infos about server memory (RAM)
cat /proc/meminfo
CPU
Infos about server CPU(s)
cat /proc/cpuinfo
/srv/wiki.niwos.com/data/pages/linux/sysadmin/system_infos.txt · Last modified: 2012/05/22 11:32 by niwo
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