Android has a beautiful app to help you scan & analyze the Wi-Fi signals floating around you. But there are no 3rd party apps for iOS. This is a huge limitation. Why? Why is this a limitation? Why is analyzing Wi-Fi signals important? Well, the least of many reasons is to find a less crowded […]
I wanted to experiment with sniffing data on the network. Of course, my own network. This was not a creepy sniffing of my neighbours’ network. I was keen in converting my Ubuntu VM into a router VM. Then I can redirect all traffic from ‘client’ VM via the ‘router’ VM on which the sniffer is […]
Often times I get into a situation where I mess up with my development (of personal projects). Though I use github for personal projects yet sometimes it is convenient to have a local SVN for all silly works (like .vimrc, .bashrc, etc…). After a lot of procrastination, I decided to set a local svn repo […]
Firewall! What a high sounding word! Means high protection & a safe cocoon for all the newbies. Thats exactly what I did setup in my laptop: A firewall! A personalized firewall. My use cases & reasons were very simple. Every once in a while, I expose my laptop to unsafe open Internet like the cafes, […]
The biggest problem I found was not identifying all the network interfaces available but the ones that are up. For instance, the 2 quickest way to identify all the available network interfaces are: ip link $> ip link show 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default link/loopback 00:00:00:00:00:00 brd […]
I am suffering from a big time space crunch when it comes to my windows box. Unbelievable. Even a 300G disk seem insufficient! And, I am geeky enough to ensure my private stuff, work stuff & OS stuff does not reside on the same partition. Yet I get into super-duper mess! Now I am at my […]
Did you also notice a giant (apparently) useless hiberfil.sys sitting in your C:\?! So did I. Well, it is nothing but “a placeholder if we choose to hibernate the system.” The geeky information here is if the user chooses to hibernate instead of sleep or shutdown then the entire RAM (at that point in time) […]
Well, well, haven’t we all faced this irritating issue where apt-gets begin to fail? I have faced it one too many times. Frustrating and mind-numbing. One of the common error is the infamous GPG Error. A “BADSIG” scenario. For instance, I faced this today: $> sudo apt-get update … … … Ign http://archive.ubuntu.com trusty-security/main Translation-en_IN […]
A simple problem I was facing in Ubuntu was finding an equivalent of “chkconfig” available on the Redhat flavors. Well, for the unaware people: ‘chkconfig‘ is popularly used for adding or removing any services during boot. In other words, it updates and queries runlevel information for system services. So, my search was for a similar tool […]
Oh, this kinda irritated me. I wanted to know this information for my project and I kept forgetting the actual value at the time of need. So wanted to get this clear in my head right now. This is straight forward and simple; we just need to check the network connection details. So, how do […]