Tuesday, January 20th, 2009
ipconfig is a Windows XP / 2000 / 2003 / Vista command utility that displays all current TCP/IP network configuration values and refreshes Dynamic Host Configuration Protocol DHCP and Domain Name System DNS settings. You can use the same tool to clear out Windows DNS cache. This command has /flushdns switch to flush and reset the contents of the DNS client resolver cache. During DNS troubleshooting, you can use this procedure to discard negative cache entries from the cache, as well as any other entries that have been added dynamically.
To clear DNS resolver cache login as administrator and open command ...
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Tuesday, August 1st, 2006
Launched .bd Whois Service www.whois.com.bd, the 1st dedicated .bd whois service.
Along with .bd the whois service also covers a total of 120 TLDs and IP Whois.
The service gives you more information than just registrant information. Current features are:
- Directly accessable whois result.
http://www.whois.com.bd/domain.com.bd (domain)
http://www.whois.com.bd/209.58.24.3 (IP)
- IP Address lookup of main domain, www and mail
- Reverse IP Lookup of main domain, www and mail
- IP Location of main domain, www and mail
- Port Scan for Ports 80 (web) 110 (POP) 25 (SMTP) and 21 (FTP) (to check if the services are running)
- HTTP Status
- Page Title of the Web ...
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Sunday, January 29th, 2006
ISP DNS going down is very common in Bangladesh.
How you know your ISP DNS has gone down? And the issue preventing you to suft the net? (not the gateway itself totally gone out... lol.. which is also common ;) )
When your ISP DNS is down, you wont be able to browse with host/domain names. You should get erors like "unable to resolve host" or "could not resolve host name"
In such cases you wont me able to browse/ftp sites with domain names (host names). But using IP address would work.
How can you determine if the issue is only with ...
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Saturday, January 28th, 2006
Do you need to to edit your Windows XP Host file? Need to add custom entries?
Might be very helpfull when your ISP DNS is down or moving host.
Windows XP HOST file is located in "C:\WINDOWS\system32\drivers\etc\"
(provided C:\WINDOWS\ is your windows installation directory)
Now open the file "hosts" with WordPad.
(Double click on the file... should come up with "open with" dialogue box. ... choose "WordPad" from the list)
The file should contain the following:
# Copyright (c) 1993-1999 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. ...
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