This site is now serverless – well, sort of. I was paying around $85 per year with hosting on WordPress.com, and now I guess it will be less than $40 per year. I am not really interested in posting a big how to guide on that, but I used the below tools for this setup. […]
My experience with AWS Certified Solutions Architect – Professional (SAP-C01) exam – June 2019
On June 12, 2019, I passed my fourth AWS certification – AWS Certified Solutions Architect – Professional. I would like to share my experience with it. The last time I used AWS professionally was on 2017 December. Ever since I joined Accenture, I was working on some private cloud, and never really had a chance […]
How to use sudo in powershell
Well this is not exactly same as sudo. However it is very annoying when I want to run something in powershell and it gives me access denied. And then I need to go to start menu, or task bar, right click, select run as administrator etc just to run one command. As someone who likes […]
How to fix AWS SES domain and DKIM verification failures in Godaddy domains
When we try to register a domain with AWS SES, they will ask us to add some TXT records in our DNS records. The sample TXT record that AWS asks us to add will be as follows : Name Type Value _amazonses.example.com TXT pmBGN/7MjnfhTKUZ06Enqq1PeGUaOkw8lGhcfwefcHU= However, if we add this in our Godaddy console, AWS is […]
How to change the OpenSSH server port in Windows
The installation for OpenSSH server in Windows is quite straightforward, as all we need to do is to follow the instructions here. However, it took a while for me to figure out how to change the listening port. Especially, in the installation folder, there is a sshd_config_default file. Changing this does not make any difference. […]
TIL how to disable the timeout of mapped drives in Windows
I was trying to copy some big files over the network to another server, and I mapped the destination drives in the local server for easy copying. However I kept getting errors in my script, which I suspected because the drives getting disconnected. Here is how to set it to not disconnect. Run as administrator […]
TIL how to check the bandwidth between 2 servers
We subscribed for a dedicated line between 2 datacenters, and when we were trying to copy some files over, it was really slow. We were supposed to get few MB/s transfer rate, but were getting only 20KB/s which was unacceptable. We needed to make a clear case with the service provider to get their support […]
How I recovered an unbootable Linux server hosted in OVH/SoYouStart
My friend has a server hosted in SoYouStart, and suddenly the server went down and nobody knew why. He asked my helped to bring it back online. We tried to boot into recovery mode from the console, and we were able to login using the credentials sent by them. We were also able to download […]
How to fix the error “an authentication error has occurred(code 0x80004005)” when connecting through RDP.
Ever since the policy to disable TLS 1.0 was pushed down to the local machines, we started getting the error “an authentication error has occurred(code 0x80004005)” when accessing few of our Windows 2008 R2 servers. It was interesting because we have a bunch of other servers with no problems accessing. This seems to be a […]
Fix “Failed to open Group Policy Object. You might not have the appropriate rights” error
I was facing this error in one of my servers while trying to open gpedit, with additional message “The volume for a file has been externally altered so that the opened file is no longer valid”. Here is how I fixed it. 1) Enable view hidden files from explorer. 2) Navigate to C:\Windows\System32\GroupPolicy\Machine 3)Rename the […]