DEV Community: muhadmr

https://pgaleone.eu/ai/coding/2025/01/26/using-ai-for-coding-my-experience/

muhadmr — Tue, 28 Jan 2025 06:00:11 +0000

Adding Existing SSH Key to git via command line

muhadmr — Wed, 20 Sep 2023 06:54:39 +0000

My environment

windows 11
using git extension with git bash
ssh key was generated using PuttyGen

Problem

cannot push because of permission issue

λ git push --set-upstream origin main
git@gitlab.com: Permission denied (publickey).
fatal: Could not read from remote repository.

Solution

Add the existing key to git
use ssh-add to add key, however, ssh-add requires ssh-agent to be running. (if in linux running eval "$(ssh-agent -s)" will allow next command ssh-agent to be executed directly, but on windows the command is not recognized)

λ  eval "$(ssh-agent -s)"
'eval' is not recognized as an internal or external command,
operable program or batch file.

so we need to get the ssh-agent socket and pid info

λ ssh-agent
SSH_AUTH_SOCK=/tmp/ssh-YKsmNCSnWFXo/agent.837; export SSH_AUTH_SOCK;
SSH_AGENT_PID=838; export SSH_AGENT_PID;
echo Agent pid 838;

next, set the environment. Note the SSH_AUTO_SOCK and SSH_AGENT_PID must be the same as above

λ set SSH_AUTH_SOCK=/tmp/ssh-YKsmNCSnWFXo/agent.837
λ set SSH_AGENT_PID=838

now use the command ssh-add to add new key

λ ssh-add c:\Keys\newKey
Identity added: c:\Keys\newKey

however, my other key is generated using puttygen with old openssh format. so I need to convert the key to new format.
run puttygen and select the conversions menu -> export openssh key (force new format)

then run the ssh-add again

λ ssh-add c:\Keys\gitprivatekey-new
Identity added: c:\Keys\gitprivatekey-new

then run git push again

λ git push --set-upstream origin main
Enumerating objects: 2370, done.
Counting objects: 100% (2370/2370), done.
Delta compression using up to 12 threads

use the command ssh-add -l to list existing identities

λ ssh-add -l
2048 SHA256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx user1 (RSA)
2048 SHA256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx rsa-key(RSA)

done

Modular Monolith links

muhadmr — Fri, 18 Aug 2023 09:13:03 +0000

Dev Links

muhadmr — Fri, 11 Aug 2023 09:04:33 +0000

Following are some interesting links:

Learn Grid
ASP.net Core Tag Helpers *we can have CUSTOM taghelper too
Web Performance
C4 Model for documenting software architecture

Database

MySQL Replication

Blogs, Podcasts, etc for Developers

Some open source .Net software to look out for

Envoy - API Gateway *proxy, load balancing, for microservices
Open Telemetry for Observation