mountd: refused mount request: unmatched host Most likely the problem is on /etc/exports, add your IP or range after the directory you want to share. vim /etc/exports /opt/smr 172.17.0.0/16(rw,sync,no_root_squash) Check also /etc/hosts.allow /etc/hosts.deny Good material for troubleshooting: http://www.cs.bgu.ac.il/~arik/usail/network/nfs/tips.html http://osr507doc.sco.com/en/PERFORM/NFS_monitoring.html http://tldp.org/HOWTO/NFS-HOWTO/troubleshooting.html […]
yum cdrom repo
How to use the cdrom RedHat .iso I tested using Vmware ESX and RedHat 5.7 1 . Mount or insert the RedHat CD 2. Mount the cdrom mount /dev/cdrom /mnt/cdrom 3. Write the repo file vim /etc/yum.repos.d/rhel-cdrom.repo [rhel-cdrom] name=rhel-cdrom baseurl=file:/mnt/cdrom/Server […]
change linux hostname
change linux RedHat / CentOS hostname vim /etc/sysconfig/network HOSTNAME=servername vim /etc/hosts 10.10.10.10 servername hostname servername verify hostname service network restart
vote for best monitoring tool
Show your love for Nagios by voting in the poll! NOTE: If you haven’t participated on the LQ forum, before you’ll have to create an account and post a new message before you can vote. The options are: Nagios Zabbix […]
add new disk in linux
This is without using LVM. try fdisk -l to find the new disk path (as in /dev/sdxx) # fdisk -l use fdisk /dev/sdxx to create partition. # fdisk /dev/sdd1 n p 1 , t,83 w use mkfs to create a […]
linux comand to show memory slots
linux comand to show memory slots To find out many hardware information on linux you can use the awesome lshw but when not available also dmidecode. To find out how many memory for examples: -How many slots: # dmidecode -t […]