chacha20 | Golang ChaCha20 stream cipher | Cryptography library

I've configured shadowsocks system by running ss-server on VPS and ss-local on my client machine. Then I made a simple SOCKS5 client which connects to ss-local and resolve SOCKS request using C. All work well, when I run ss-tunnel instead of ss-local, my SOCKS5 client can't connect to ss-tunnel.

TCP connection terminates as soon as it established. I'm not sure what is the proper reason.

I have ec2 instance with ubuntu v20.04 and it has python v3.8.10 and pysftp 0.2.9.

I have generate .pem file from .ppk file using below command

puttygen sftp_server.ppk -O private-openssh -o sftp_server.pem

I am able to connect successfully to sftp server using command line-

I have a Python 3 application running on CentOS Linux 7.7 executing SSH commands against remote hosts. It works properly but today I encountered an odd error executing a command against a "new" remote server (server based on RHEL 6.10):

encountered RSA key, expected OPENSSH key

Executing the same command from the system shell (using the same private key of course) works perfectly fine.

On the remote server I discovered in /var/log/secure that when SSH connection and commands are issued from the source server with Python (using Paramiko) sshd complains about unsupported public key algorithm:

userauth_pubkey: unsupported public key algorithm: rsa-sha2-512

Note that target servers with higher RHEL/CentOS like 7.x don't encounter the issue.

It seems like Paramiko picks/offers the wrong algorithm when negotiating with the remote server when on the contrary SSH shell performs the negotiation properly in the context of this "old" target server. How to get the Python program to work as expected?

Python code

I've been using ssh keys with github for a while now. Suddenly i can't push and I'm getting a Permission denied (publickey) error. Here's what I've tried so far:

• Checked the ssh key is in the correct directory (~/.ssh)
• Tried reuploading my public key to github (I get a message that the key already exists)
• Double checked that the output of ssh-add -l -E sha256 on my system agrees with the string in my ssh settings on my github account
• Followed all the steps in the "Troubleshooting ssh" section of the github docs. (Everything seems gucci)
• Banged my head against the wall for an hour

So far nothing has helped. This is my last resort. I'll greatly appreciate any and all suggestions. Here's the output of my ssh -vT git@github.com

I am trying to use pip install git+ssh://git@bitbucket.org/my_org/my_package_repo.git to install a custom-made python package (shared by multiple applications) from BitBucket WITHOUT having to enter the SSH password.

There seems to be a lot of good information in one of the answers to this question for doing this in GitLab, etc. There's also some solid supporting information here.

I've already setup an SSH key between my local Mac and this BitBucket account. I'm able to push/pull code all the time to/from this account without having to re-enter the SSH password. Why is the pip install command requiring the password, when it's not required by git commands? Is there a way around this with BitBucket and the setup I've described?

When I run the GIT_SSH_COMMAND='ssh -vvv' pip install git+ssh://git@bitbucket.org/my_org/my_package_repo.git command recommended in the comments, I get the following (sanitized) response:

I have 2 different github accounts, 1 for work and 1 for personal projects. On my laptop, I created 2 different directories to clone my Github repositories:

Perso: /Users/pierre-alexandre/Documents/perso

Work: /Users/pierre-alexandre/Documents/work

Then, I generated 2 different SSH keys on /Users/pierre-alexandre/.ssh and added each .pub key on their respective Github repository. At the end this is what my /Users/pierre-alexandre/.ssh folder looks like:

New installed Windows 11，created key pair with ssh-keygen -t rsa -C "my@email.com" command and uploaded the content in id_rsa.pub file to the git server, then run git clone git@server:user/repo in windows terminal powershell , then I got the note of Permission denied.

• I have confirmed the public key I uploaded is correct, and the private key file can be correctly access from git bash, cygwin terminal and windows terminal powershell.

• I tried to delete the key pair and regenerate one then upload, which is helpless.

• I tried to change a git server including coding.net, gitee.com and github.com, and the reports are the same.(with Permission denied)

• I confirm that the remote git repo is existent.

• I confirm that I can correctly access the git repo via https and username-password authentication.

• I tried clone the repo on my mac or linux, and they are ok.

After I searched some posts on this site, I tried ssh -v git@gitee.com, then got the report below:

I have a shiny server app using aws ec2 & route53, nginx & certbot for ssl. right now my domain name is used by the app. I would like to have a static homepage to welcome users and offer the access to login to the app. The purpose is to have an homepage intro and so it can be indexed by google. Can i use one domain for that (for both app and webpage)? how should i define and manage my domain to do so?

hope i made my Q clear enough. thanks in advance

I forgot to mention that my static website is on aws s3 bucket (and not on the ec2 +nginx server). I'm not sure about the syntax to define the nginx.conf. the following is how the nginx.conf is working now fine:

I'm trying to use jq to parse the output of https://ssl-config.mozilla.org/guidelines/5.6.json, a pretty simple JSON structure.

How can I get the "openssl" values if "configurations" is "modern" or "intermediate"?

The basic JSON structure would be: