LINUX-RHEL-checklist server.

lista de comandos para evaluar el estado de un server RHEL.

Disk usage.
# df -al

Memory information.
# free

Network information.
# ifconfig -a

Installed Modules information.
#lsmod

Currently mounted filesystems/shares.
# mount

Process tree
# pstree

System uptime information.
# uptime

Services running in different runlevels.
# chkconfig --list 

Generates hardware configuration report. (Not sure whether it is present in RH9)
# /usr/share/rhn/up2date_client/hardware.py

Installed RPMS.
# rpm -q --all
List of currently open files.
# lsof -b +M -n -l

Attached USB devices.
# lsusb

Routing table information.
# route -n

Partition table
# fdisk -l

System hostname
# hostname

IP Tables information
# iptables -t filter -nvL

Listing PCI Devices
# lspci
# lspci -n
# lspci -nv
# lspci -nvv


fuente:
http://h30499.www3.hp.com/t5/System-Administration/prtdiag-type-command-in-linux/td-p/3865609