Allowing application servers to relay off Exchange Server 2007.
You want to allow some application such as SQL Server reporting or agent to send emails to external persons, however Exchange 2007 does not allow the mail out and you get an error in the logs like this:
SMTP error message “550 5.7.1 Unable to relay”
To allow mail through you need to do some further configuration and run a PowerShell script, this webpage provides a great explanation and instructions on exactly what you need to do:
MTR combines the functionality of the ‘traceroute’ and ‘ping’ programs in a single network diagnostic tool.
As mtr starts, it investigates the network connection between the host mtr runs on and a user-specified destination host. After it determines the address of each network hop between the machines, it sends a sequence ICMP ECHO requests to each one to determine the quality of the link to each machine. As it does this, it prints running statistics about each machine.
Some distro’s include MTR as a package like Debian.
More info and download visit the Main Website:
One of the best imaging applications I’ve ever used and it’s Open Source Software and FREE!
Clonezilla and my favourite for doing a quick image backup of your computer is Clonezilla Live.
From the Clonezilla website here is a quick description:
Clonezilla live is suitable for single machine backup and restore. While Clonezilla SE is for massive deployment, it can clone many (40 plus!) computers simultaneously. Clonezilla saves and restores only used blocks in the harddisk. This increases the clone efficiency. At the NCHC’s Classroom C, Clonezilla SE was used to clone 41 computers simultaneously. It took only about 10 minutes to clone a 5.6 GBytes system image to all 41 computers via multicasting!
More Info and Downloads at http://clonezilla.org/
You can quickly check what version of your Debian or Ubuntu system is running at the bash shell by issuing these commands:
Note: Debian is different to Ubuntu
Ubuntu 8.10 n l
If you need to change the listen address for snmpd, then modify /etc/default/snmpd for Debian Linux.
Now remove 127.0.0.1 from:
SNMPDOPTS=’-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd.pid 127.0.0.1′
and add your IP or leave blank for listen on 0.0.0.0
SNMPDOPTS=’-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd.pid 192.168.1.22′
Ubuntu is slightly different on some versions, check the config files.
Default input language on servers required to be English Australian, can’t remove English (United States).
Try this on the Citrix servers and remove the English (United states) from the control panel area regional settings etc.
I had the same problem – Microsoft article 322042 should do the trick. Basically all you have to do is add in a:
DWORD value IgnoreRemoteKeyboardLayout = 1 under HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlKeyboard Layout
Also works with any workstation.
HowTo upgrade from Debian Etch (4.0 ) to Lenny (5.0) article which is very timely as there is movement from the Debian camp about a Lenny release this month.
From Debian Admin: