Super-Networking

11 Feb

Configure Network Adapter from Command Prompt

If you really want to configure your IP address from the command prompt instead of the Windows GUI you can do so with the Netsh.exe command.
To see your current network config go to a command prompt and type in the following command "netsh interface ip show config"
If you want to set you IP to 10.10.0.2 […]

04 Oct

Switching DNS

Well I just got through switching some 700+ domains from VegaDNS to our new Simple DNS Plus platform. Vega DNS ran on Linux and in a 99% Windows environment keeping Linux around just to run DNS was not viable. Simple DNS Plus running on Windows 2003 and is a simple, easy to manage, but powerful DNS […]

11 Jun

Dynamic DNS

You hosting something on your home PC and the IP address keeps getting changed by your ISP? Check out this service called Dynamic DNS, it is a service that allows you to have a hostname permanently pointed back to your home computer even with a dynamic IP. How they do it is you install a […]

24 Apr

Internet is Slow at Work

Well you come in and your Internet is slow across the board, doesn’t matter what website you are going to. Being an IT Professional and in my case the Network Admin I know I will hear about it. It is time to start checking it out even if it is just my PC.
First think I […]

18 Mar

Want to catch any mistyping infront of your domain

If you have a website and you want to make sure that anyone typing things like wwww.mydomain.com or ww.mydomain.com or even bob@mydomain.com put a wildcard entry in your DNS settings. Normally you would put an A record for www.mydomain.com and an A records for mydomain.com but you might miss mistypes. Another reason to use […]

09 Mar

Connect to Windows Share using an Alias (cname)

If you setup a cname in DNS to point to a windows box you are unable to connect to the file shares using the Alias.
Workaround:
1) Start Regedit
2) Locate and click the following key in the registry:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters
3) Add the following value
Value Name: DisableStrictNameChecking
Data Type: REG_DWORD
Radix: Decimal
Value: 1
Exit Regedit and Reboot your machine.
Microsoft Article

09 Jan

Why are my servers showing up as the internal address?

When you add a static nat in your Cisco router for one of your servers the router then knows the internal and external IP. When you do a DNS query on that server to an outside DNS server the router will translate your returned address to the internal IP for you. See below for the […]

31 Jul

ACLs/Firewall Effect on Services

Just wanted to post about controlling services like DNS, FTP, SMTP etc… If you don’t have a firewall and have a Cisco router you can control ports with ACLs. You will need to use an extended ACL so the that command will start out with “ip access-list extended” typically with these since it can be […]

30 Jun

DNS Issues

Found an issues with my companies external DNS yesterday that I would be curious to know how long it has been a problem. Our external DNS for my website had 5 name servers listed on the root DNS servers, 2 out of these 5 did not work. So theoretically all pages loads could have been […]

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