Need to scan your network to find available ipaddress? If you are using a linux distro, then you have nmap at your service. One simple command is all it takes.
nmap –s 192.168.1.0/24
nmap has many other command switches available. Check our their website for more information.
We have a Zimbra mail server at work running on top of a 64bit Ubuntu 8.0.4 OS. The computer is a Dell Precision 380 and after a power outage last night, (yes it is connected to a UPS) the motherboard got fried. Luckly, I have another Precision 380 I could swap all the drives, memory and network interfaces to. When I booted up, all went as planned until I realized that my internal network card eth0 was not found. Eth0 is an on-board card, so I new it was working but Ubuntu was not finding it. I ifconfig’ed to check for eth1, eth2, eth3…etc…finally I found it…it was not eth4…weird, I thought. So then I went to /etc/network/interfaces to change eth0 to eth4 and all would be well. Correct? Not so fast. I could not get eth4 to come up with the static ipaddress that is listed in /etc/network/interfaces. What the heck…..did some more digging and found a udev rule that ties the mac address to the network card. So I had to edit the udev rule to reflect the new mac address of eth0 and then restart the udev service and what do you know…eth0 came up again. Awesome!
Rule to edit:
/etc/udev/rules.d/70-persistent-net.rules
eth0 was the first defined rule and all thast was needed was to modify the mac address to reflect the onboard nic in the new computer.
Ever wonder how to get the 32bit ODBC dialog box from within Windows 7?
Yea me to…..Well I found it today….Run the command below to get the 32bit ODBC dialog.
C:\Windows\SysWOW64\ODBCAD32.EXE
Whether you are using Postfix or Sendmail with Spamassassin, you can watch your maillogs within an ssh session by using the following code:
tail -f /var/log/maillog | egrep '(reject|error|warning|fatal|panic)'
This will help to troubleshoot rejected emails or emails rejected due to Spamassassin blocking the email as Spam.
I was trying to increase the size of an ide drive I have associated with a VM and the option was greyed out. See image below.
I found this option to change the ide device to a scsi on the VMWare knowledgebase.
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1016192
But the problem is, how do I get a text editor to let me change the vmdk file? Well, that is where you need to access the server from a console or ssh into the box. See website below for more information.
Allowing ssh access to your esxi server.
http://www.techhead.co.uk/vmware-esxi-how-to-enable-ssh-connectivity
Now that we have access to the esxi server via ssh, Below are the steps needed to increase the virtual drive size.
Good luck. Hope all that makes sense.
Ever need to export a newer AutoCAD file to a previous version? You will probably get a dialog box stating that certain objects will not show up or are not supported in the previous version and that you need to enable proxy graphics. If you try like I have to explode the proxy graphics or the AutoCAD objects, you will find that they do not explode.
Well I found across this solution today.
In the command window just type in AECTOACAD and this will explode the proxy objects and save the file as a new name. Then open the file you just saved and then resave it to the previous version say AutoCAD 2004 and you will not get the dialog warning box.
