Archive for the ‘Networking’ Category
So I was at a clients and btw, forgot my laptop, and I had to configure their Cisco ASA 5505 series router with the new IP address of their satellites office’s ASA router. You see, they had a site-to-site VPN.
Problem was when I telnet into the ASA I get an “Could not open connection to the host, on port 23.Connect failed” error.
I could ping the router’s ip however, and also when I tried to login using the Cisco ASDM Launcher, I would get “Unable to launch ASDM Connection Timed out” error. What the heck?!?!!?!?!?!?
Well, the problem was that the router was never configured to accept any other IP for management. See, the router was set for an IP range of 10.0.X.X. But the router was only configure to allow a range of 192.168.X.X.
It took about 2 hours to figure this out, so I post it here to help relieve you of a future headache, and to remind me as well.
This is how to solve:
You’re going to have to use the console cable to establish a connection to the ASA since it appears that your HTTPS/SSH access lists are not configured correctly.
Use the blue console cable to establish a connection to the ASA and from the command line interface, go to enable mode and issue the following commands:
conf t
http server enable
http 192.168.1.0 255.255.255.0 inside - where the IP has to be the inside IP scope assigned.
Once I did this using the 10.0.X.X IP, I was then able to use ASDM to configure the VPN settings.
Hope this helps…. comment if you have any questions.
I was called by a client whom has recently purchased a laptop with XP Media Center 2005. Of course joining the domain on his company’s network was not going to happen because the option was ‘greyed out.’
So what did I do? Google baby…. Found out that there is a single registry key hack that enables and disables this feature. Here are the steps to re-enable, and be able to join a domain.
1. Insert any Windows XP CD.
2. Boot to the CD and choose ‘Recovery Console’
3. Select the installation to log onto (default: 1) and press Enter. (Most likely the administrator password will be blank. If
it is not enter the password you set or contact the manufacturer.)
4. Type cd system32\config and press Enter.
5. Type copy SYSTEM c:\ and press Enter.
6. Type exit and press Enter.
7. Boot the PC back into Windows
8. Start > Run > Type: regedit and press Enter.
9. Click on ‘HKEY_LOCAL_MACHINE’.
10. File > Load Hive…
11. Browse and select C:\SYSTEM
12. Specify key name ‘TEMP’ and click OK.
13. Expand: HKEY_LOCAL_MACHINE > TEMP > WPA > MedCtrUpg
14. Change the IsLegacyMCE value to 1 and click ok.(one, not an L)
15. Click on TEMP subkey (under HKEY_LOCAL_MACHINE).
16. File > Unload Hive. Confirm.
17. Reboot the PC.
18. Boot into the Recovery Console using the Windows CD again
19. Select the installation to log onto (default: 1) and press Enter.
20. Type cd\ and press Enter.
21. Type copy SYSTEM C:\WINDOWS\SYSTEM32\CONFIG\SYSTEM and press Enter.(Choose ‘yes’ to overwrite)
22. Type del SYSTEM and press Enter.
23. Type exit and press Enter.
24. Boot up Windows.
25. The ‘Join Domain’ option should no longer be grayed
out.
And you’re done…
I had a little project today where I had to locate all the hosts on a network and identify them. Most of the hosts weren’t workstations so it was not that easy.
I found a nifty little tool online to help me with that… FASTResolver.
FastResolver is a small utility that resolves multiple host names into IP addresses and vice versa. You can simply type the list of IP addresses or host name that you want to resolve, or alternatively, you can specify IP addresses range that you want to scan. FastResolver is a multithreaded application, so it can resolve dozens of addresses within a few seconds.