On 10/21/20 1:47 PM, Adam Williamson wrote:
Try ssh -vvv or ssh -vvvv , it will give you much more detail on what mechanisms are attempted and (sometimes) why they fail. May be an algorithm issue possibly.
$ ssh -vvvv cvs.savannah.gnu.org OpenSSH_8.4p1, OpenSSL 1.1.1g FIPS 21 Apr 2020 debug1: Reading configuration data /home/bothner/.ssh/config debug1: /home/bothner/.ssh/config line 11: Applying options for *.gnu.org debug1: Reading configuration data /etc/ssh/ssh_config debug3: /etc/ssh/ssh_config line 55: Including file /etc/ssh/ssh_config.d/50-redhat.conf depth 0 debug1: Reading configuration data /etc/ssh/ssh_config.d/50-redhat.conf debug2: checking match for 'final all' host cvs.savannah.gnu.org originally cvs.savannah.gnu.org debug3: /etc/ssh/ssh_config.d/50-redhat.conf line 3: not matched 'final' debug2: match not found debug3: /etc/ssh/ssh_config.d/50-redhat.conf line 5: Including file /etc/crypto-policies/back-ends/openssh.config depth 1 (parse only) debug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config debug3: gss kex names ok: [gss-curve25519-sha256-,gss-nistp256-sha256-,gss-group14-sha256-,gss-group16-sha512-] debug3: kex names ok: [curve25519-sha256,curve25519-sha256@xxxxxxxxxx,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512] debug1: configuration requests final Match pass debug1: re-parsing configuration debug1: Reading configuration data /home/bothner/.ssh/config debug1: /home/bothner/.ssh/config line 11: Applying options for *.gnu.org debug1: Reading configuration data /etc/ssh/ssh_config debug3: /etc/ssh/ssh_config line 55: Including file /etc/ssh/ssh_config.d/50-redhat.conf depth 0 debug1: Reading configuration data /etc/ssh/ssh_config.d/50-redhat.conf debug2: checking match for 'final all' host cvs.savannah.gnu.org originally cvs.savannah.gnu.org debug3: /etc/ssh/ssh_config.d/50-redhat.conf line 3: matched 'final' debug2: match found debug3: /etc/ssh/ssh_config.d/50-redhat.conf line 5: Including file /etc/crypto-policies/back-ends/openssh.config depth 1 debug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config debug3: gss kex names ok: [gss-curve25519-sha256-,gss-nistp256-sha256-,gss-group14-sha256-,gss-group16-sha512-] debug3: kex names ok: [curve25519-sha256,curve25519-sha256@xxxxxxxxxx,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512] debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/home/bothner/.ssh/known_hosts' debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/home/bothner/.ssh/known_hosts2' debug2: resolving "cvs.savannah.gnu.org" port 22 debug2: ssh_connect_direct debug1: Connecting to cvs.savannah.gnu.org [209.51.188.81] port 22. debug1: Connection established. debug1: identity file /home/bothner/.ssh/id_rsa type 0 debug1: identity file /home/bothner/.ssh/id_rsa-cert type -1 debug1: identity file /home/bothner/.ssh/id_dsa type 1 debug1: identity file /home/bothner/.ssh/id_dsa-cert type -1 debug1: identity file /home/bothner/.ssh/id_ecdsa type -1 debug1: identity file /home/bothner/.ssh/id_ecdsa-cert type -1 debug1: identity file /home/bothner/.ssh/id_ecdsa_sk type -1 debug1: identity file /home/bothner/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /home/bothner/.ssh/id_ed25519 type -1 debug1: identity file /home/bothner/.ssh/id_ed25519-cert type -1 debug1: identity file /home/bothner/.ssh/id_ed25519_sk type -1 debug1: identity file /home/bothner/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /home/bothner/.ssh/id_xmss type -1 debug1: identity file /home/bothner/.ssh/id_xmss-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_8.4 debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4p1 Debian-10+deb9u7 debug1: match: OpenSSH_7.4p1 Debian-10+deb9u7 pat OpenSSH_7.0*,OpenSSH_7.1*,OpenSSH_7.2*,OpenSSH_7.3*,OpenSSH_7.4*,OpenSSH_7.5*,OpenSSH_7.6*,OpenSSH_7.7* compat 0x04000002 debug2: fd 4 setting O_NONBLOCK debug1: Authenticating to cvs.savannah.gnu.org:22 as 'bothner' debug3: hostkeys_foreach: reading file "/home/bothner/.ssh/known_hosts" debug3: record_hostkey: found key type RSA in file /home/bothner/.ssh/known_hosts:2 debug3: load_hostkeys: loaded 1 keys from cvs.savannah.gnu.org debug3: order_hostkeyalgs: prefer hostkeyalgs: rsa-sha2-512-cert-v01@xxxxxxxxxxx,rsa-sha2-256-cert-v01@xxxxxxxxxxx,ssh-rsa-cert-v01@xxxxxxxxxxx,rsa-sha2-512,rsa-sha2-256,ssh-rsa debug3: send packet: type 20 debug1: SSH2_MSG_KEXINIT sent debug3: receive packet: type 20 debug1: SSH2_MSG_KEXINIT received debug2: local client KEXINIT proposal debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@xxxxxxxxxx,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,ext-info-c debug2: host key algorithms: rsa-sha2-512-cert-v01@xxxxxxxxxxx,rsa-sha2-256-cert-v01@xxxxxxxxxxx,ssh-rsa-cert-v01@xxxxxxxxxxx,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp384-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp521-cert-v01@xxxxxxxxxxx,sk-ecdsa-sha2-nistp256-cert-v01@xxxxxxxxxxx,ssh-ed25519-cert-v01@xxxxxxxxxxx,sk-ssh-ed25519-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ecdsa-sha2-nistp256@xxxxxxxxxxx,ssh-ed25519,sk-ssh-ed25519@xxxxxxxxxxx debug2: ciphers ctos: aes256-gcm@xxxxxxxxxxx,chacha20-poly1305@xxxxxxxxxxx,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes128-ctr debug2: ciphers stoc: aes256-gcm@xxxxxxxxxxx,chacha20-poly1305@xxxxxxxxxxx,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes128-ctr debug2: MACs ctos: hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha2-256,hmac-sha1,umac-128@xxxxxxxxxxx,hmac-sha2-512 debug2: MACs stoc: hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha2-256,hmac-sha1,umac-128@xxxxxxxxxxx,hmac-sha2-512 debug2: compression ctos: zlib@xxxxxxxxxxx,zlib,none debug2: compression stoc: zlib@xxxxxxxxxxx,zlib,none debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug2: peer server KEXINIT proposal debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@xxxxxxxxxx,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1 debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519 debug2: ciphers ctos: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx debug2: ciphers stoc: chacha20-poly1305@xxxxxxxxxxx,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@xxxxxxxxxxx,aes256-gcm@xxxxxxxxxxx debug2: MACs ctos: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: umac-64-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha2-512-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-64@xxxxxxxxxxx,umac-128@xxxxxxxxxxx,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none,zlib@xxxxxxxxxxx debug2: compression stoc: none,zlib@xxxxxxxxxxx debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug1: kex: algorithm: curve25519-sha256 debug1: kex: host key algorithm: rsa-sha2-512 debug1: kex: server->client cipher: aes256-gcm@xxxxxxxxxxx MAC: <implicit> compression: zlib@xxxxxxxxxxx debug1: kex: client->server cipher: aes256-gcm@xxxxxxxxxxx MAC: <implicit> compression: zlib@xxxxxxxxxxx debug1: kex: curve25519-sha256 need=32 dh_need=32 debug1: kex: curve25519-sha256 need=32 dh_need=32 debug3: send packet: type 30 debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug3: receive packet: type 31 debug1: Server host key: ssh-rsa SHA256:FYkx0iik+iBeCLRzvUyUSTRT98TEBBJoYuQsTXbyGL8 debug3: hostkeys_foreach: reading file "/home/bothner/.ssh/known_hosts" debug3: record_hostkey: found key type RSA in file /home/bothner/.ssh/known_hosts:2 debug3: load_hostkeys: loaded 1 keys from cvs.savannah.gnu.org debug3: hostkeys_foreach: reading file "/home/bothner/.ssh/known_hosts" debug3: record_hostkey: found key type RSA in file /home/bothner/.ssh/known_hosts:32 debug3: load_hostkeys: loaded 1 keys from 209.51.188.81 debug1: Host 'cvs.savannah.gnu.org' is known and matches the RSA host key. debug1: Found key in /home/bothner/.ssh/known_hosts:2 debug3: send packet: type 21 debug2: set_newkeys: mode 1 debug1: rekey out after 4294967296 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug3: receive packet: type 21 debug1: SSH2_MSG_NEWKEYS received debug2: set_newkeys: mode 0 debug1: rekey in after 4294967296 blocks debug1: Skipping ssh-dss key /home/bothner/.ssh/id_dsa - not in PubkeyAcceptedKeyTypes debug1: Will attempt key: /home/bothner/.ssh/id_rsa RSA SHA256:UrZs1kSmA0JMUjJTlkP4Roth6eI8g5rCNiLWj8xX99E agent debug1: Will attempt key: /home/bothner/.ssh/id_ecdsa debug1: Will attempt key: /home/bothner/.ssh/id_ecdsa_sk debug1: Will attempt key: /home/bothner/.ssh/id_ed25519 debug1: Will attempt key: /home/bothner/.ssh/id_ed25519_sk debug1: Will attempt key: /home/bothner/.ssh/id_xmss debug2: pubkey_prepare: done debug3: send packet: type 5 debug3: receive packet: type 7 debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521> debug3: receive packet: type 6 debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug3: send packet: type 50 debug3: receive packet: type 51 debug1: Authentications that can continue: publickey,password debug3: start over, passed a different list publickey,password debug3: preferred gssapi-with-mic,publickey,keyboard-interactive,password debug3: authmethod_lookup publickey debug3: remaining preferred: keyboard-interactive,password debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Offering public key: /home/bothner/.ssh/id_rsa RSA SHA256:UrZs1kSmA0JMUjJTlkP4Roth6eI8g5rCNiLWj8xX99E agent debug1: send_pubkey_test: no mutual signature algorithm debug1: Trying private key: /home/bothner/.ssh/id_ecdsa debug3: no such identity: /home/bothner/.ssh/id_ecdsa: No such file or directory debug1: Trying private key: /home/bothner/.ssh/id_ecdsa_sk debug3: no such identity: /home/bothner/.ssh/id_ecdsa_sk: No such file or directory debug1: Trying private key: /home/bothner/.ssh/id_ed25519 debug3: no such identity: /home/bothner/.ssh/id_ed25519: No such file or directory debug1: Trying private key: /home/bothner/.ssh/id_ed25519_sk debug3: no such identity: /home/bothner/.ssh/id_ed25519_sk: No such file or directory debug1: Trying private key: /home/bothner/.ssh/id_xmss debug3: no such identity: /home/bothner/.ssh/id_xmss: No such file or directory debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: ,password debug3: authmethod_is_enabled password debug1: Next authentication method: password bothner@xxxxxxxxxxxxxxxxxxxx's password: ~/.ssh/config is: Compression yes Host *.redhat.com Protocol 2 ForwardX11 no #Host sourceware.org #Protocol 2 #ForwardX11 no Host gcc.gnu.org Protocol 2 ForwardX11 no Host *.gnu.org Protocol 2 ForwardX11 no -- --Per Bothner per@xxxxxxxxxxx http://per.bothner.com/ _______________________________________________ test mailing list -- test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to test-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/test@xxxxxxxxxxxxxxxxxxxxxxx
