Crucial Paradigm

If you are trying to find out what exact DNS records your DNS server (or someone else’s DNS servers) are publishing for a specific domain, run the following under any Linux/UNIX system with the ‘host’ command installed:

host -al [domain.com] [nameserver.domain.com]

Where [domain.com] is the domain you wish to query in regards to, and [nameserver.domain.com] is the name server you wish to query.

The quick easy way to install dig on CentOS is:

yum install bind-utils -y

To check the logs of an R1Soft Linux agent you can run the following the agent server:

cat /var/log/messages | grep buagent

This will list all the entries in the messages log in relation to buagent (R1Soft). To get a copy of all relevant files to give R1Soft in case of an issue on the server, you can use the following:

r1soft-report.sh

If the physical interface used for the manage interface needs to be changed, edit the MANAGEMENT_INTERFACE field /etc/xensource-inventory file on the host to reflect the new interface being used. Make sure you use the bridge interface (e.g. xenbr0) and not the physical NIC.

Once you have made this modification you will need to run the following:

xe-toolstack-restart

Deleting mail from an entire inbox (purging) can be done in a few ways on Zimbra:

zmmailbox -z -m user@domain.com emptyFolder /Inbox

or

zmmailbox -a admin -p password -m user@domain.com emptyFolder /Inbox

or

zmmailbox
mbox> adminAuthenticate -u https://server.domain.com:7071 admin@domain.com password
mbox> selectMailbox user@domain.com
mbox user@domain.com> emptyFolder /Inbox

If you are getting an error something along this lines of the following:

-bash-3.2# sh ./latest
Creating directory installd
Verifying archive integrity… All good.
Uncompressing cplyr1-cPanel………………………………………………………………………………………………..
____ _
___| _ \ __ _ _ __ ___| |
/ __| |_) / _` | ‘_ \ / _ \ |
| (__| __/ (_| | | | | __/ |
\___|_| \__,_|_| |_|\___|_|

Installer Version 11.25.0 r176

Ensuring system time is set
Updated system time from rdate.cpanel.net: Fri Mar 12 04:54:26 UTC 2010
Verified directory /scripts exists.
Verified directory /scripts/cPScript exists.
Verified directory /usr/local/cpanel exists.
Verified directory /usr/local/cpanel/logs exists.
Verified directory /usr/local/cpanel/Cpanel exists.
Verified directory /var/cpanel exists.
cPanel configuration /var/cpanel/cpanel.config already exists.
Syncing /scripts
Unable to sync: $! at ./updatenow line 38.
Done syncing /scripts
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
FATAL! Failed to properly update /scripts
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-bash-3.2#

Make sure you have install rsync, and perl. You can do this by doing:

yum install rsync perl -y

On the server running the agent, just run this command:

r1key -a [ipaddressofserver]

A quick and easy way is to run:

prtconf

If you are having trouble mounting a CD or DVD in Solaris, you are not alone!

First you need to find the CD/DVD drive. You can do this by using the following command:

iostat -Ee

This will list all your drives, just look for the one which has 0GB storage, or the model number of your CD-ROM drive.

Once you have found that, you need to create the directory to mount the CD-ROM drive, and then mount the CD-DROM drive:

mkdir /cdrom
chmod a+wrx
mount -F hsfs -o ro /dev/dsk/c0t0d0p0 /cdrom

Where c0t0d0p0 is the device ID of your CD-ROM drive.

NOTE: We had an issue where iostat -Ee only listed part of the model number (c0t0d0) and we had to add p0 to the end to get it working. We found this out be browsing /dev/dsk/ and finding all devices with c0t0d0 in them.

It can be quite frustrating using the console/terminal on a Solaris machine, as by default the backspace/delete key does not work.

To enable the key, just do the following the terminal:

stty erase ^h