Linode, you need a spam filter

I got this usual money scam email not directly, but via Linode Forum! Who even deploys Web applications without basic spam protection?!

Hello nileshgr,

The following is an email sent to you by joy kone via your account on
“Linode Forum”. If this message is spam, contains abusive or other comments
you find offensive please contact the webmaster of

November 22nd, 2015|Random Noise, Rants|0 Comments

A networking insight into the past

An insight into a networking problem thrt I faced seven years ago wrt unable to use Internet on Linux after learning networking and Linux over the years.

November 5th, 2015|India, Linux|0 Comments

CloudFlare Dynamic DNS using OpenWRT

I use dynamic DNS for my home internet connection so that I can access the machines from anywhere on the internet. And I use OpenWRT on my router. Earlier I was using Namecheap for managing DNS but I switched to CloudFlare for performance and security reasons of the website.

Unfortunately CloudFlare doesn’t support updating IP via

September 23rd, 2015|Linux, Programming|0 Comments

The Proxy ARP method of routing subnets to solve the docker networking problem

Recently I discovered something called Proxy ARP. I had seen this earlier in sysctl options but never understood it and why would someone need it, until one day I worked in a networking setup which used this to route traffic from the machine to the Internet. It’s an interesting technique and can solve a big problem when you want to use the currently popular tool, docker in your LAN subnet that has DHCP without having to do some other stuff like port forwarding when trying to give access to others.

June 29th, 2015|Linux|2 Comments

The PC reset problem with Active PFC SMPS and UPS

I have a desktop machine with a Corsair SMPS which has active power factor correction. I had a Luminous 675 VA UPS before buying my new desktop machine with this SMPS. The cheapo power supplies available in India (which cost a fourth of the cost of branded ones like Corsair, etc) do not employ power

March 22nd, 2015|Random Noise|8 Comments