"Connection closed by remote host"

Question

Hi guys, When i try to do everything like push, pull or clone i always get this error: "Connection to bitbucket.org closed by remote host." I set up anything but i still can't user SSH. Here is the "ssh -v git@bitbucket.org" output: OpenSSH_8.4p1 Ubuntu-6ubuntu2.1, OpenSSL 1.1.1l 24 Aug 2021 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files debug1: /etc/ssh/ssh_config line 21: Applying options for * debug1: Connecting to bitbucket.org [104.192.141.1] port 22. debug1: Connection established. debug1: identity file /home/medhit/.ssh/id_rsa type 0 debug1: identity file /home/medhit/.ssh/id_rsa-cert type -1 debug1: identity file /home/medhit/.ssh/id_dsa type -1 debug1: identity file /home/medhit/.ssh/id_dsa-cert type -1 debug1: identity file /home/medhit/.ssh/id_ecdsa type -1 debug1: identity file /home/medhit/.ssh/id_ecdsa-cert type -1 debug1: identity file /home/medhit/.ssh/id_ecdsa_sk type -1 debug1: identity file /home/medhit/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /home/medhit/.ssh/id_ed25519 type -1 debug1: identity file /home/medhit/.ssh/id_ed25519-cert type -1 debug1: identity file /home/medhit/.ssh/id_ed25519_sk type -1 debug1: identity file /home/medhit/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /home/medhit/.ssh/id_xmss type -1 debug1: identity file /home/medhit/.ssh/id_xmss-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_8.4p1 Ubuntu-6ubuntu2.1 debug1: Remote protocol version 2.0, remote software version conker_7dc144d26a 619f72b56309 debug1: no match: conker_7dc144d26a 619f72b56309 debug1: Authenticating to bitbucket.org:22 as 'git' debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: curve25519-sha256@libssh.org debug1: kex: host key algorithm: rsa-sha2-512 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ssh-rsa SHA256:zzXQOXSRBEiUtuE8AikJYKwbHaxvSc0ojez9YXaGp1A debug1: Host 'bitbucket.org' is known and matches the RSA host key. debug1: Found key in /home/medhit/.ssh/known_hosts:1 debug1: rekey out after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: rekey in after 134217728 blocks debug1: Will attempt key: /home/medhit/.ssh/id_rsa RSA SHA256:q+2j3LsaItXbg4jfEHTqt7vWH3JLzN4BVfqtAZZdiOo agent debug1: Will attempt key: medhit@medhit-ThinkStation-P350 RSA SHA256:cdzCBMfl5BFlXKBkmriFKpjdY2AWXePjIlbUG8Fx+EY agent debug1: Will attempt key: /home/medhit/.ssh/id_dsa debug1: Will attempt key: /home/medhit/.ssh/id_ecdsa debug1: Will attempt key: /home/medhit/.ssh/id_ecdsa_sk debug1: Will attempt key: /home/medhit/.ssh/id_ed25519 debug1: Will attempt key: /home/medhit/.ssh/id_ed25519_sk debug1: Will attempt key: /home/medhit/.ssh/id_xmss debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs= debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Offering public key: /home/medhit/.ssh/id_rsa RSA SHA256:q+2j3LsaItXbg4jfEHTqt7vWH3JLzN4BVfqtAZZdiOo agent debug1: Server accepts key: /home/medhit/.ssh/id_rsa RSA SHA256:q+2j3LsaItXbg4jfEHTqt7vWH3JLzN4BVfqtAZZdiOo agent debug1: Authentication succeeded (publickey). Authenticated to bitbucket.org ([104.192.141.1]:22). debug1: channel 0: new [client-session] debug1: Entering interactive session. debug1: pledge: network debug1: Sending environment. debug1: Sending env LANG = it_IT.UTF-8 debug1: channel 0: free: client-session, nchannels 1 Connection to bitbucket.org closed by remote host. Transferred: sent 3188, received 2084 bytes, in 20.1 seconds Bytes per second: sent 158.5, received 103.6 debug1: Exit status -1

Caroline R · Answer

Hi, @medhit, thank you for reaching out to Atlassian Community.

It's hard to say what's happening because there are roughly 20 lines of more verbose output missing that would tell us details about network settings that could potentially cause the connection to close. In this case, could you please share a verbose using -vvv with us?

If you could also share the extra verbose output of a clone operation, this could help us to identify what is happening here. Just please remember to remove any private information before posting it here.

For testing purposes, can you connect the device you are using to a different network, e.g. 4G, and see if you can connect to Bitbucket? And is the connection failing only when using the SSH method or is the same happens when you use the HTTPS as well?

Thank you.

Kind regards,
Caroline