Security
Let's discuss about vpn's and tor security
Last week I was looking at Tor network security. I have learnt quite a new things that I didn't knew about earlier. So, I decide to summarize it and put it in a article.
Shubham Dubey
Besides being a Linux & Open source advocate, I spent most of my time in working on low level security stuff(Reversing, Rootkits, Bios, negative rings etc).
Virtualization
Creating ARM architecture environment inside x86/x64 linux
If you want your hands on arm architecture assembly then you probably would be wondering how can I generate the *ARM* assembly or use ARM toolset in general inside my intel x86 or x64 architecture system. In this article we will explain you how you can do that by using qemu and chroot.
Exploit Development
Exploiting Off-by-One buffer overflow vulnerability
Off-by-one vulnerability is little difficult to find and hence can be present in big softwares.It can cause due to not aware of fact if your string provided is not null terminating then strcpy will add a null terminator at the end of string,
Firmware
Replace your proprietary bios with linux firmware
Intel system comes with UEFI, UEFI is a proprietary and closed-source operating system that can be exploited.NERF (Non-Extensible Reduced Firmware), an open source software system developed at Google can replace almost all of UEFI firmware with a tiny Linux kernel and initramfs.
Containers
Demystifying Linux Containers(LXC)
Containers are the future when it comes to using and shipping applications. But Linux containers or LXC can be used for more than just that. This article covers the use of LXC on a daily basis as well as for production.
Security
Finding and removing malware from windows in minimal steps using sysinternals suite
Did your system ever get affected with malwares? Did you know you can manually remove common malwares with very little technical knowledge. In this article I will explain you how to find malware using sysinternals suite.
Security
Sandboxing and program isolation in linux using many approaches (Part 2)
Containers are tools for isolation which use namespaces to archive that.They are called light weight virtualization because they provide process level isolation only, means they depend on linux kernel.
Security
Sandboxing and program isolation in linux using many approaches (Part 1)
You can secure your linux system by isolating the malicious program or risky tasks using Sandboxing in different ways to stop it from affecting your main system.Sandboxing means providing a safe environment for a program or software so you can play around it without hurting your system
Virtualization
Data Storage virtualization in Linux (Part 2)
In the previous part we talked about how we can create sparse file storage and create file system to mount or share across network. Now we will look into some common disk operations that we can do with this storage like scaling, encryption etc.
Virtualization
Data Storage virtualization in Linux (Part 1)
Learn how to use file storage in Staas services. In file storage we create a file and use it as our virtual partition then format it in desire file system and mount it. All the operation we do in our real disk partition(/dev/sda*) can be done on that with some little tricks or manipulation.
Tutorial
Finding file information using different methods
Information about files content can be found using different methods in both windows and linux systems. This knowledge can be handy if you are developing a program or script that is dealing with files.
Linux
How to boot linux iso without usb on corrupted bios of lenovo laptops
Grub2 have the capability to boot directly from iso file present in any of your hard drive storage. Using this feature most Linux distributions as well as popular rescue CDs can be booted directly from an ISO file.