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-sha...@libssh.org,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-sha...@libssh.org,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-...@openssh.com,rsa-sha2-256-cert-...@openssh.com,ssh-rsa-cert-...@openssh.com,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-sha...@libssh.org,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-...@openssh.com,rsa-sha2-256-cert-...@openssh.com,ssh-rsa-cert-...@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256-cert-...@openssh.com,ecdsa-sha2-nistp384-cert-...@openssh.com,ecdsa-sha2-nistp521-cert-...@openssh.com,sk-ecdsa-sha2-nistp256-cert-...@openssh.com,ssh-ed25519-cert-...@openssh.com,sk-ssh-ed25519-cert-...@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ecdsa-sha2-nistp...@openssh.com,ssh-ed25519,sk-ssh-ed25...@openssh.com
debug2: ciphers ctos:
aes256-...@openssh.com,chacha20-poly1...@openssh.com,aes256-ctr,aes128-...@openssh.com,aes128-ctr
debug2: ciphers stoc:
aes256-...@openssh.com,chacha20-poly1...@openssh.com,aes256-ctr,aes128-...@openssh.com,aes128-ctr
debug2: MACs ctos:
hmac-sha2-256-...@openssh.com,hmac-sha1-...@openssh.com,umac-128-...@openssh.com,hmac-sha2-512-...@openssh.com,hmac-sha2-256,hmac-sha1,umac-...@openssh.com,hmac-sha2-512
debug2: MACs stoc:
hmac-sha2-256-...@openssh.com,hmac-sha1-...@openssh.com,umac-128-...@openssh.com,hmac-sha2-512-...@openssh.com,hmac-sha2-256,hmac-sha1,umac-...@openssh.com,hmac-sha2-512
debug2: compression ctos: z...@openssh.com,zlib,none
debug2: compression stoc: z...@openssh.com,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-sha...@libssh.org,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-poly1...@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-...@openssh.com,aes256-...@openssh.com
debug2: ciphers stoc:
chacha20-poly1...@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-...@openssh.com,aes256-...@openssh.com
debug2: MACs ctos:
umac-64-...@openssh.com,umac-128-...@openssh.com,hmac-sha2-256-...@openssh.com,hmac-sha2-512-...@openssh.com,hmac-sha1-...@openssh.com,umac...@openssh.com,umac-...@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc:
umac-64-...@openssh.com,umac-128-...@openssh.com,hmac-sha2-256-...@openssh.com,hmac-sha2-512-...@openssh.com,hmac-sha1-...@openssh.com,umac...@openssh.com,umac-...@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,z...@openssh.com
debug2: compression stoc: none,z...@openssh.com
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-...@openssh.com MAC: <implicit>
compression: z...@openssh.com
debug1: kex: client->server cipher: aes256-...@openssh.com MAC: <implicit>
compression: z...@openssh.com
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
both...@cvs.savannah.gnu.org'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
p...@bothner.com http://per.bothner.com/
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