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Security

I am in general interested in security and like to write secure code. Sometimes I also find the time to write about it.

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Secure Wordpress by changing hashing algorithm from MD5

Wordpress using a broken hash algorithm, MD5, to hash password with salt. Here I am going through how to replace the MD5 hash function using a plugin. »

    Teis LindemarkTeis Lindemark
3 min read

My solutions to PST advent calendar 2020

PST (the Norwegian Police Security Service) advent calendar is focusing on IT security, NPST. This is one of the calendars I am going to follow through »

    Teis LindemarkTeis Lindemark
5 min read

Configuring multiple SSH keys with Git and Azure DevOps

I had to generate a new SSH key pair for Azure DevOps recently. The reason was that I got a message in Azure DevOps telling me »

    Teis LindemarkTeis Lindemark
1 min read

ASP.Net Core 3.0 authenticate using Github OAuth

Go to the settings page and create a new OAuth app, https://github.com/settings/developersEnter a name of the application, a homepage url and a »

    Teis LindemarkTeis Lindemark
4 min read

Disabling TLS1.0 and SSL3 in development enviroment

Transport Layer Security (TLS) – and its predecessor, Secure Sockets Layer (SSL), which is now deprecated by the Internet Engineering Task Force (IETF) – are cryptographic protocols that »

    Teis LindemarkTeis Lindemark
2 min read

Self signed certificate and configuring Identityserver 4 with certificate

I always forget how to generate self-signed certificates. For once I will now document the process of generating the certificate and also configuring IdentityServer4 with the »

    Teis LindemarkTeis Lindemark
5 min read
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Disclaimer: The opinions expressed herein are my own personal opinions and do not represent my employer’s view in any way.