7:13 a.m.
In my homelab, where I only have a single IPA server, I have had to rebuild / replace it
due to issues outside of IPA. I was unable to restore the VM from a snapshot, however I
was able to rebuild and use a backup created by ipa-backup to perform a restore.
Everything appeared to work fine, and IPA clients are working, as well as LDAP and other
services. The only issue I'm encountering is that when I try to ssh to the IPA server
from one of the clients, SSH hangs here:
$ ssh -vvvvv master
OpenSSH_8.1p1, OpenSSL 1.1.1d FIPS 10 Sep 2019
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 51: Including file /etc/ssh/ssh_config.d/05-redhat.conf
depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug2: checking match for 'final all' host master originally master
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 3: not matched 'final'
debug2: match not found
debug3: /etc/ssh/ssh_config.d/05-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-gex-sha1-,gss-group14-sha1-,gss-group1-sha1-]
debug3: kex names ok:
[curve25519-sha256,curve25519-sha256@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1]
debug1: configuration requests final Match pass
debug1: re-parsing configuration
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 51: Including file /etc/ssh/ssh_config.d/05-redhat.conf
depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug2: checking match for 'final all' host master originally master
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 3: matched 'final'
debug2: match found
debug3: /etc/ssh/ssh_config.d/05-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-gex-sha1-,gss-group14-sha1-,gss-group1-sha1-]
debug3: kex names ok:
[curve25519-sha256,curve25519-sha256@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1]
debug1: Executing proxy command: exec /usr/bin/sss_ssh_knownhostsproxy -p 22 master
debug1: identity file /home/rlong/.ssh/id_rsa type -1
debug1: identity file /home/rlong/.ssh/id_rsa-cert type -1
debug1: identity file /home/rlong/.ssh/id_dsa type -1
debug1: identity file /home/rlong/.ssh/id_dsa-cert type -1
debug1: identity file /home/rlong/.ssh/id_ecdsa type -1
debug1: identity file /home/rlong/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/rlong/.ssh/id_ed25519 type -1
debug1: identity file /home/rlong/.ssh/id_ed25519-cert type -1
debug1: identity file /home/rlong/.ssh/id_xmss type -1
debug1: identity file /home/rlong/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.1
I'm assuming it has something to do with the knownhostsproxy setup, but I can't
find any information on how to confirm that or what to do to resolve it. I am able to ssh
to the IPA server from any system that is not enrolled as an IPA client.
Any ideas?
8:47 a.m.
New subject: Replaced IPA server - now cannot ssh to it from ipa clients
Russ Long via FreeIPA-users wrote:
In my homelab, where I only have a single IPA server, I have had to
rebuild / replace it due to issues outside of IPA. I was unable to restore the VM from a
snapshot, however I was able to rebuild and use a backup created by ipa-backup to perform
a restore. Everything appeared to work fine, and IPA clients are working, as well as LDAP
and other services. The only issue I'm encountering is that when I try to ssh to the
IPA server from one of the clients, SSH hangs here:
$ ssh -vvvvv master
OpenSSH_8.1p1, OpenSSL 1.1.1d FIPS 10 Sep 2019
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 51: Including file /etc/ssh/ssh_config.d/05-redhat.conf
depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug2: checking match for 'final all' host master originally master
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 3: not matched 'final'
debug2: match not found
debug3: /etc/ssh/ssh_config.d/05-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-gex-sha1-,gss-group14-sha1-,gss-group1-sha1-]
debug3: kex names ok:
[curve25519-sha256,curve25519-sha256@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1]
debug1: configuration requests final Match pass
debug1: re-parsing configuration
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 51: Including file /etc/ssh/ssh_config.d/05-redhat.conf
depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug2: checking match for 'final all' host master originally master
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 3: matched 'final'
debug2: match found
debug3: /etc/ssh/ssh_config.d/05-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-gex-sha1-,gss-group14-sha1-,gss-group1-sha1-]
debug3: kex names ok:
[curve25519-sha256,curve25519-sha256@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1]
debug1: Executing proxy command: exec /usr/bin/sss_ssh_knownhostsproxy -p 22 master
debug1: identity file /home/rlong/.ssh/id_rsa type -1
debug1: identity file /home/rlong/.ssh/id_rsa-cert type -1
debug1: identity file /home/rlong/.ssh/id_dsa type -1
debug1: identity file /home/rlong/.ssh/id_dsa-cert type -1
debug1: identity file /home/rlong/.ssh/id_ecdsa type -1
debug1: identity file /home/rlong/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/rlong/.ssh/id_ed25519 type -1
debug1: identity file /home/rlong/.ssh/id_ed25519-cert type -1
debug1: identity file /home/rlong/.ssh/id_xmss type -1
debug1: identity file /home/rlong/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.1
I'm assuming it has something to do with the knownhostsproxy setup, but I can't
find any information on how to confirm that or what to do to resolve it. I am able to ssh
to the IPA server from any system that is not enrolled as an IPA client.
Any ideas?
Maybe see if it can get the keys from the master:
sss_ssh_knownhostsproxy -k master
rob
8:52 a.m.
New subject: Replaced IPA server - now cannot ssh to it from ipa clients
sss_ssh_knownhostsproxy -k master - this works without issue, and appears to return the
correct keys from what I can tell.
SSH to the master still fails.
9:01 a.m.
New subject: Replaced IPA server - now cannot ssh to it from ipa clients
Actually ssh to the master now works, it does take a long period of time. There is a very
long pause at the same location noted above, here's the rest of the debug logs:
# ssh rlong(a)master.ipa.tfmm.co -vvvv
OpenSSH_8.1p1, OpenSSL 1.1.1d FIPS 10 Sep 2019
debug1: Reading configuration data /root/.ssh/config
debug1: /root/.ssh/config line 1: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 51: Including file /etc/ssh/ssh_config.d/05-redhat.conf
depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug2: checking match for 'final all' host master.ipa.tfmm.co originally
master.ipa.tfmm.co
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 3: not matched 'final'
debug2: match not found
debug3: /etc/ssh/ssh_config.d/05-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-gex-sha1-,gss-group14-sha1-,gss-group1-sha1-]
debug3: kex names ok:
[curve25519-sha256,curve25519-sha256@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1]
debug1: configuration requests final Match pass
debug1: re-parsing configuration
debug1: Reading configuration data /root/.ssh/config
debug1: /root/.ssh/config line 1: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 51: Including file /etc/ssh/ssh_config.d/05-redhat.conf
depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug2: checking match for 'final all' host master.ipa.tfmm.co originally
master.ipa.tfmm.co
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 3: matched 'final'
debug2: match found
debug3: /etc/ssh/ssh_config.d/05-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-gex-sha1-,gss-group14-sha1-,gss-group1-sha1-]
debug3: kex names ok:
[curve25519-sha256,curve25519-sha256@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1]
debug1: Executing proxy command: exec /usr/bin/sss_ssh_knownhostsproxy -p 22
master.ipa.tfmm.co
debug1: identity file /root/.ssh/id_rsa type -1
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: identity file /root/.ssh/id_dsa type -1
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: identity file /root/.ssh/id_ed25519 type -1
debug1: identity file /root/.ssh/id_ed25519-cert type -1
debug1: identity file /root/.ssh/id_xmss type -1
debug1: identity file /root/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.1
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.1
debug1: match: OpenSSH_8.1 pat OpenSSH* compat 0x04000000
debug2: fd 7 setting O_NONBLOCK
debug2: fd 6 setting O_NONBLOCK
debug1: Authenticating to master.ipa.tfmm.co:22 as 'rlong'
debug3: hostkeys_foreach: reading file "/root/.ssh/known_hosts"
debug3: hostkeys_foreach: reading file "/var/lib/sss/pubconf/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /var/lib/sss/pubconf/known_hosts:1
debug3: record_hostkey: found key type ECDSA in file /var/lib/sss/pubconf/known_hosts:2
debug3: record_hostkey: found key type ED25519 in file /var/lib/sss/pubconf/known_hosts:4
debug3: record_hostkey: found key type ED25519 in file /var/lib/sss/pubconf/known_hosts:5
debug3: record_hostkey: found key type RSA in file /var/lib/sss/pubconf/known_hosts:7
debug3: record_hostkey: found key type RSA in file /var/lib/sss/pubconf/known_hosts:8
debug3: load_hostkeys: loaded 6 keys from master.ipa.tfmm.co
debug3: order_hostkeyalgs: prefer hostkeyalgs:
ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,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@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,ext-info-c
debug2: host key algorithms:
ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos:
aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm(a)openssh.com,aes128-ctr,aes128-cbc
debug2: ciphers stoc:
aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm(a)openssh.com,aes128-ctr,aes128-cbc
debug2: MACs ctos:
hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128(a)openssh.com,hmac-sha2-512
debug2: MACs stoc:
hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128(a)openssh.com,hmac-sha2-512
debug2: compression ctos: none,zlib(a)openssh.com,zlib
debug2: compression stoc: none,zlib(a)openssh.com,zlib
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@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1
debug2: host key algorithms:
rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos:
aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm(a)openssh.com,aes128-ctr,aes128-cbc
debug2: ciphers stoc:
aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm(a)openssh.com,aes128-ctr,aes128-cbc
debug2: MACs ctos:
hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128(a)openssh.com,hmac-sha2-512
debug2: MACs stoc:
hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128(a)openssh.com,hmac-sha2-512
debug2: compression ctos: none,zlib(a)openssh.com
debug2: compression stoc: none,zlib(a)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: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: aes256-gcm(a)openssh.com MAC: <implicit>
compression: none
debug1: kex: client->server cipher: aes256-gcm(a)openssh.com MAC: <implicit>
compression: none
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: ecdsa-sha2-nistp256
SHA256:VDPeQEW3gn8jzgkiLW0k5Gpp1/+TnG4FS+RHEiSU8Lc
debug3: hostkeys_foreach: reading file "/root/.ssh/known_hosts"
debug3: hostkeys_foreach: reading file "/var/lib/sss/pubconf/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /var/lib/sss/pubconf/known_hosts:1
debug3: record_hostkey: found key type ECDSA in file /var/lib/sss/pubconf/known_hosts:2
debug3: record_hostkey: found key type ED25519 in file /var/lib/sss/pubconf/known_hosts:4
debug3: record_hostkey: found key type ED25519 in file /var/lib/sss/pubconf/known_hosts:5
debug3: record_hostkey: found key type RSA in file /var/lib/sss/pubconf/known_hosts:7
debug3: record_hostkey: found key type RSA in file /var/lib/sss/pubconf/known_hosts:8
debug3: load_hostkeys: loaded 6 keys from master.ipa.tfmm.co
debug1: Host 'master.ipa.tfmm.co' is known and matches the ECDSA host key.
debug1: Found key in /var/lib/sss/pubconf/known_hosts:1
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: Will attempt key: /root/.ssh/id_rsa
debug1: Will attempt key: /root/.ssh/id_dsa
debug1: Will attempt key: /root/.ssh/id_ecdsa
debug1: Will attempt key: /root/.ssh/id_ed25519
debug1: Will attempt key: /root/.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,rsa-sha2-256,rsa-sha2-512,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,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive
debug3: start over, passed a different list
publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive
debug3: preferred gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup gssapi-with-mic
debug3: remaining preferred: publickey,keyboard-interactive,password
debug3: authmethod_is_enabled gssapi-with-mic
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available (default cache: KCM:)
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available (default cache: KCM:)
debug2: we did not send a packet, disable method
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /root/.ssh/id_rsa
debug3: no such identity: /root/.ssh/id_rsa: No such file or directory
debug1: Trying private key: /root/.ssh/id_dsa
debug3: no such identity: /root/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /root/.ssh/id_ecdsa
debug3: no such identity: /root/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /root/.ssh/id_ed25519
debug3: no such identity: /root/.ssh/id_ed25519: No such file or directory
debug1: Trying private key: /root/.ssh/id_xmss
debug3: no such identity: /root/.ssh/id_xmss: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup keyboard-interactive
debug3: remaining preferred: password
debug3: authmethod_is_enabled keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug3: send packet: type 50
debug2: we sent a keyboard-interactive packet, wait for reply
debug3: receive packet: type 60
debug2: input_userauth_info_req
debug2: input_userauth_info_req: num_prompts 1
Password:
debug3: send packet: type 61
ssh_dispatch_run_fatal: Connection to UNKNOWN port 65535: Broken pipe
9:21 a.m.
New subject: Replaced IPA server - now cannot ssh to it from ipa clients
Russ Long via FreeIPA-users wrote:
Actually ssh to the master now works, it does take a long period of
time. There is a very long pause at the same location noted above, here's the rest of
the debug logs:
# ssh rlong(a)master.ipa.tfmm.co -vvvv
OpenSSH_8.1p1, OpenSSL 1.1.1d FIPS 10 Sep 2019
debug1: Reading configuration data /root/.ssh/config
debug1: /root/.ssh/config line 1: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 51: Including file /etc/ssh/ssh_config.d/05-redhat.conf
depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug2: checking match for 'final all' host master.ipa.tfmm.co originally
master.ipa.tfmm.co
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 3: not matched 'final'
debug2: match not found
debug3: /etc/ssh/ssh_config.d/05-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-gex-sha1-,gss-group14-sha1-,gss-group1-sha1-]
debug3: kex names ok:
[curve25519-sha256,curve25519-sha256@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1]
debug1: configuration requests final Match pass
debug1: re-parsing configuration
debug1: Reading configuration data /root/.ssh/config
debug1: /root/.ssh/config line 1: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 51: Including file /etc/ssh/ssh_config.d/05-redhat.conf
depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
debug2: checking match for 'final all' host master.ipa.tfmm.co originally
master.ipa.tfmm.co
debug3: /etc/ssh/ssh_config.d/05-redhat.conf line 3: matched 'final'
debug2: match found
debug3: /etc/ssh/ssh_config.d/05-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-gex-sha1-,gss-group14-sha1-,gss-group1-sha1-]
debug3: kex names ok:
[curve25519-sha256,curve25519-sha256@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1]
debug1: Executing proxy command: exec /usr/bin/sss_ssh_knownhostsproxy -p 22
master.ipa.tfmm.co
debug1: identity file /root/.ssh/id_rsa type -1
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: identity file /root/.ssh/id_dsa type -1
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: identity file /root/.ssh/id_ed25519 type -1
debug1: identity file /root/.ssh/id_ed25519-cert type -1
debug1: identity file /root/.ssh/id_xmss type -1
debug1: identity file /root/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.1
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.1
debug1: match: OpenSSH_8.1 pat OpenSSH* compat 0x04000000
debug2: fd 7 setting O_NONBLOCK
debug2: fd 6 setting O_NONBLOCK
debug1: Authenticating to master.ipa.tfmm.co:22 as 'rlong'
debug3: hostkeys_foreach: reading file "/root/.ssh/known_hosts"
debug3: hostkeys_foreach: reading file "/var/lib/sss/pubconf/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /var/lib/sss/pubconf/known_hosts:1
debug3: record_hostkey: found key type ECDSA in file /var/lib/sss/pubconf/known_hosts:2
debug3: record_hostkey: found key type ED25519 in file
/var/lib/sss/pubconf/known_hosts:4
debug3: record_hostkey: found key type ED25519 in file
/var/lib/sss/pubconf/known_hosts:5
debug3: record_hostkey: found key type RSA in file /var/lib/sss/pubconf/known_hosts:7
debug3: record_hostkey: found key type RSA in file /var/lib/sss/pubconf/known_hosts:8
debug3: load_hostkeys: loaded 6 keys from master.ipa.tfmm.co
debug3: order_hostkeyalgs: prefer hostkeyalgs:
ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,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@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,ext-info-c
debug2: host key algorithms:
ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos:
aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm(a)openssh.com,aes128-ctr,aes128-cbc
debug2: ciphers stoc:
aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm(a)openssh.com,aes128-ctr,aes128-cbc
debug2: MACs ctos:
hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128(a)openssh.com,hmac-sha2-512
debug2: MACs stoc:
hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128(a)openssh.com,hmac-sha2-512
debug2: compression ctos: none,zlib(a)openssh.com,zlib
debug2: compression stoc: none,zlib(a)openssh.com,zlib
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@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,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1
debug2: host key algorithms:
rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos:
aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm(a)openssh.com,aes128-ctr,aes128-cbc
debug2: ciphers stoc:
aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm(a)openssh.com,aes128-ctr,aes128-cbc
debug2: MACs ctos:
hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128(a)openssh.com,hmac-sha2-512
debug2: MACs stoc:
hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128(a)openssh.com,hmac-sha2-512
debug2: compression ctos: none,zlib(a)openssh.com
debug2: compression stoc: none,zlib(a)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: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: aes256-gcm(a)openssh.com MAC: <implicit>
compression: none
debug1: kex: client->server cipher: aes256-gcm(a)openssh.com MAC: <implicit>
compression: none
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: ecdsa-sha2-nistp256
SHA256:VDPeQEW3gn8jzgkiLW0k5Gpp1/+TnG4FS+RHEiSU8Lc
debug3: hostkeys_foreach: reading file "/root/.ssh/known_hosts"
debug3: hostkeys_foreach: reading file "/var/lib/sss/pubconf/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /var/lib/sss/pubconf/known_hosts:1
debug3: record_hostkey: found key type ECDSA in file /var/lib/sss/pubconf/known_hosts:2
debug3: record_hostkey: found key type ED25519 in file
/var/lib/sss/pubconf/known_hosts:4
debug3: record_hostkey: found key type ED25519 in file
/var/lib/sss/pubconf/known_hosts:5
debug3: record_hostkey: found key type RSA in file /var/lib/sss/pubconf/known_hosts:7
debug3: record_hostkey: found key type RSA in file /var/lib/sss/pubconf/known_hosts:8
debug3: load_hostkeys: loaded 6 keys from master.ipa.tfmm.co
debug1: Host 'master.ipa.tfmm.co' is known and matches the ECDSA host key.
debug1: Found key in /var/lib/sss/pubconf/known_hosts:1
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: Will attempt key: /root/.ssh/id_rsa
debug1: Will attempt key: /root/.ssh/id_dsa
debug1: Will attempt key: /root/.ssh/id_ecdsa
debug1: Will attempt key: /root/.ssh/id_ed25519
debug1: Will attempt key: /root/.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,rsa-sha2-256,rsa-sha2-512,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,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive
debug3: start over, passed a different list
publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive
debug3: preferred gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup gssapi-with-mic
debug3: remaining preferred: publickey,keyboard-interactive,password
debug3: authmethod_is_enabled gssapi-with-mic
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available (default cache: KCM:)
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available (default cache: KCM:)
debug2: we did not send a packet, disable method
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /root/.ssh/id_rsa
debug3: no such identity: /root/.ssh/id_rsa: No such file or directory
debug1: Trying private key: /root/.ssh/id_dsa
debug3: no such identity: /root/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /root/.ssh/id_ecdsa
debug3: no such identity: /root/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /root/.ssh/id_ed25519
debug3: no such identity: /root/.ssh/id_ed25519: No such file or directory
debug1: Trying private key: /root/.ssh/id_xmss
debug3: no such identity: /root/.ssh/id_xmss: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup keyboard-interactive
debug3: remaining preferred: password
debug3: authmethod_is_enabled keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug3: send packet: type 50
debug2: we sent a keyboard-interactive packet, wait for reply
debug3: receive packet: type 60
debug2: input_userauth_info_req
debug2: input_userauth_info_req: num_prompts 1
Password:
debug3: send packet: type 61
ssh_dispatch_run_fatal: Connection to UNKNOWN port 65535: Broken pipe
root doesn't have a Kerberos ticket, that is going to delay things.
rob
9:24 a.m.
New subject: Replaced IPA server - now cannot ssh to it from ipa clients
I'm seeing the same behavior when trying to ssh from an IPA user's account on the
same machine. I have also confirmed that the user has an active kerberos ticket.
1484
days inactive
1484
days old
freeipa-users@lists.fedorahosted.org
5 comments
2 participants
participants (2)
-
Rob Crittenden -
Russ Long