To flush the DNS cache in Windows,
1. Get into command prompt. ( start –> run –> cmd )
2. Run the following command “ipconfig /flushdns” .
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To flush the DNS cache in Windows,
1. Get into command prompt. ( start –> run –> cmd )
2. Run the following command “ipconfig /flushdns” .
Being in Malaysia we are gifted with superior Internet speeds. NOT!!
Services like openDNS are awesome but the lag between us and them often results in sluggish performance anyways.
One way to improve performance is to use local DNS servers. I don’t use Streamyx’s DNS servers because they SUCK!!. TIME’s DNS servers are ok but I still prefer openDNS.
To improve performance, I put together a local DNS caching-only server that forwards to openDNS. Now I have openDNS with lighting fast response.
Let’s walk though the steps to get your own local DNS caching-only server setup. I’m using openSUSE 11 so the steps might vary depending on your distro.
1. Install BIND
pandora:~ # zypper in bind
2. Edit /etc/named.conf
pandora:~ # vi /etc/named..conf
Uncomment the forwarders section. Update the default values with the values below.
forwarders { 208.67.222.222; 208.67.220.220; };
forward only;
Add the line ” forward only; ” This will tell BIND to only forward to the forwarders and not the ROOT servers.
3. Start the service.
To have the service start automatically run ” chkconfig named on ”
pandora:~ # service named start
4. Let’s make sure your caching server is running fine.
pandora:~ # nslookup google.com localhost
Server:Â Â Â Â Â Â Â Â localhost
Address:Â Â Â Â Â Â Â 127.0.0.1#53
Non-authoritative answer:
Name:Â Â google.com
Address: 64.233.167.99
Name:Â Â google.com
Address: 72.14.207.99
Name:Â Â google.com
Address: 64.233.187.99
pandora:~ # nslookup yahoo.com localhost
Server:Â Â Â Â Â Â Â Â localhost
Address:Â Â Â Â Â Â Â 127.0.0.1#53
Non-authoritative answer:
Name:Â Â yahoo.com
Address: 68.180.206.184
Name:Â Â yahoo.com
Address: 206.190.60.37
5. Update your /etc/resolv.conf file.
This will tell your system to use the local DNS server which we just setup instead of the external ones.
Add the lines below to the file.
nameserver 127.0.0.1
nameserver 127.0.0.2
That’s it. You now have local DNS caching. Enjoy!!
Looks like our boys are at it again. Bastards, either their DNS is un-patched or this is deliberate.
Update: The bastards turned out to be MCMC!!!
Sources: MalaysiaKini || Kamal Talks || BangsaMalaysia
If you’re on streamyx and using TMNET dns servers (202.188.0.133/202.188.1.5/etc….) then Malaysia Today is off limits to you.
Streamyx DNS servers are resolving malaysia-today.net to “127.0.0.1″ . See screenshot
openDNS (208.67.222.222 / 208.67.220.220) and other DNS servers got it right so use them to get onto Malaysia-Today .
Again, the alternative URI
Stumbled upon a free DNS hosting service today. XName provides free DNS to all and in return only expects a donation if you like the service. However, if you plan to use XName for commercial purpose then a donation is mandatory.
From a infrastructure standpoint XName provides 3 DNS servers. 1 primary and 2 secondary servers. All DNS records are replicated across all servers so it’s best practice to use all 3 servers when possible to archive the best redundancy possible.
I’m currently working on a mini ISP setup for a client myself. The primary DNS server is in place but for my secondary servers I’m thinking of using XName instead as it’s going to save me a few dollars.
I’ll tell you how it goes.
