![]() ![]() ![]() The -1 at the end of each line stands for not found. debug1: identity file /Users/maxim/.ssh/id_rsa type 0 debug1: identity file /Users/maxim/.ssh/id_rsa-cert type -1 debug1: identity file /Users/maxim/.ssh/id_dsa type -1 debug1: identity file /Users/maxim/.ssh/id_dsa-cert type -1 debug1: identity file /Users/maxim/.ssh/id_ecdsa type -1 debug1: identity file /Users/maxim/.ssh/id_ecdsa-cert type -1 debug1: identity file /Users/maxim/.ssh/id_ed25519 type -1 debug1: identity file /Users/maxim/.ssh/id_ed25519-cert type -1 debug1: identity file /Users/maxim/.ssh/id_xmss type -1 debug1: identity file /Users/maxim/.ssh/id_xmss-cert type -1 In my case, the debug output looks as follows: debug1: Connecting to port 22. This is the SSH client trying to find a private key by going through a list of possible filenames. Look out for a sequence of lines starting with debug1: identity file. Therefore, to debug your SSH connection with Github, you would type: # Debug the SSH connection to ssh -v will print out a few things to the terminal. To debug an SSH connection you can pass the -v flag to the SSH command. Next troubleshooting step is to check whether the SSH client can find a private key to authenticate with Github. You can view a repository's remotes with: # View a repository's remote list git remote -v Make sure you have a key pair and that the SSH client is using it □ In case you're trying to push to Github, make sure the remote is spelled correctly and pointing to the right repository. Screenshot of Github repository page showing copy command button You can do this by navigating to the repository page and look for a green button labelled "Code" in the upper right corner. The correct format for cloning a Github repository using SSH is: # Syntax for cloning a Github repository using SSH git clone recommend copying the repository location from the Github website to avoid making manual mistakes. It's easy to omit or misspell a letter without you noticing. If you're cloning a repository, double-check you didn't make any typos in the command. Avoid typos by copying the repository location □ However, using root is generally considered insecure and it's better to create a non-root user and disable root login altogether. If you're on a VPS and logged in as root, using sudo doesn't make a difference so this is probably not the reason for the error. This leads to Github denying access to your private repositories because it can't verify that it's you. When you generate SSH keys without sudo and then use sudo to clone a repository, you won't be using the same keys you generated. When you use sudo, you're running the command as the root user and SSH will use a different key pair to authenticate with Github. First of all, try not to use sudo command with git. ![]() ![]() To interact with an existing SUID binary skip the first command and run the program using its original path. This example creates a local SUID copy of the binary and runs it to maintain elevated privileges. If it is used to run commands (e.g., via system()-like invocations) it only works on systems like Debian (<= Stretch) that allow the default sh shell to run with SUID privileges. If the binary has the SUID bit set, it may be abused to access the file system, escalate or maintain access with elevated privileges working as a SUID backdoor. Sudo git -C "$TF" commit -allow-empty -m x sudo PAGER='sh -c "exec sh 0&2' >"$TF/.git/hooks/pre-commit.sample".If the binary is allowed to run as superuser by sudo, it does not drop the elevated privileges and may be used to access the file system, escalate or maintain privileged access. The read file content is displayed in diff style output format. It reads data from files, it may be used to do privileged reads or disclose files outside a restricted file system. Mv "$TF/.git/hooks/pre-commit.sample" "$TF/.git/hooks/pre-commit" PAGER='sh -c "exec sh 0&2' >"$TF/.git/hooks/pre-commit.sample".It can be used to break out from restricted environments by spawning an interactive system shell. ![]()
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