Misc: Comcast xfinity Technicolor TC8305C modem – bridge mode and disable firewall completely

Well… first off you can’t do either so stop right here.

To have your modem put in bridge mode you will have to call Comcast customer support. They will do it remotely for ya no questions asked. Once it is provisioned then you can logon to the modem and enable bridge mode.

Your modem can also assign an IP to your router in router mode. To put modem in semi-bridge mode go to Gateway, Firewall and select Custom Seruity. Click on the link and select “Disable entire firewall”. Now, go to Gateway and click on VIEW CONNECTED DEVICES. Note the IP address of your router and then go to Advanced, DMZ, enable DMZ and put your router’s IP there.

Misc: Circumventing DNS based web filtering and redirection services like opendns.com.

DNS based web filtering services block access to unauthorized website by manipulating name resolution for the particular site. Meaning that when a URL is accessed, the filtering service returns an incorrect result that is usually a page showing you are not allowed to access that website. This filtering could affect all IP based protocols such as HTTP, FTP, etc. To circumvent such services you can find the IP address of website and add to your host file. Host file contains the mappings of IP addresses to host names and prevent having the name resolved through DNS servers. Sometimes it can be obtained by using the IP in address bar as well. If you are unable to find the IP because you are behind the web filtering service, you can use a DNS Lookup service, type the URL and find the IP.

To add the IP’s to allowed list in hosts file:
Location of hosts file in Linux: /etc/hosts
Location of hosts file in Windows: C:\Windows\System32\drivers\etc\hosts

Open the file in editor of your choice and add the IP as shown below:
204.152.204.166        www.4chan.org

You can add as many sites as you please but Each entry should be kept on an individual line. Save the file, restart your browser to flush DNS and you’re good to go.

Windows: Add, change, upgrade or remove your RAID controller without having to lose any data or start with a fresh OS install

Scenario:

You have single or multiple drives using your motherboard IDE, SATA or internal software RAID and want to add a RAID controller to your system.
Your drives are connected to a RAID controller. You are either trying to use a different card or give it up for an onboard controller.

but you rather keep your current OS installation, applications and files. You require no new OS installtion. All you have to do is to connect the RAID controller to your motherboard and power up the system, install the drivers and introduce it to your OS and restart. Once the card is visible to the OS simply image your current operating system, create your RAID arrays and restore the image to the active partition of your array. You can now boot from the new controller without having to do anything else.

I tested this once with Ubuntu and it didn’t work. Not sure about different distributions, though.