Script SCP with public key
I need to configure a script to copy some files from one Ubuntu server to another. The key uses is allowed in the authorized_keys on remote server.
I'm trying to configure this script:
#!/bin/sh
#Monitoring
for i in 192.168.0.10 192.168.0.11;
do
su user1 -l -c "scp -oStrictHostKeyChecking=accept-new -oPasswordAuthentication=no -oBindAddress=0.0.0.0 -q -r /tmp/log/*log user1@${i}:/data/logs/"
done
I receive this log:
Executing: program /usr/bin/ssh host 192.168.0.10, user user1, command scp -v -r -d -t /data/logs/
lost connection
I can connect using my account on the remote server. but when I try to run the script the log are:
OpenSSH_8.2p1 Ubuntu-4ubuntu0.1, OpenSSL 1.1.1f 31 Mar 2020
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 4: Applying options for *
debug2: resolve_canonicalize: hostname 192.168.0.10 is address
debug2: ssh_connect_direct
debug1: Connecting to 192.168.0.10 [192.168.0.10] port 22.
debug1: Connection established.
debug1: identity file /data/user1/.ssh/id_rsa type -1
debug1: identity file /data/user1/.ssh/id_rsa-cert type -1
debug1: identity file /data/user1/.ssh/id_dsa type -1
debug1: identity file /data/user1/.ssh/id_dsa-cert type -1
debug1: identity file /data/user1/.ssh/id_ecdsa type -1
debug1: identity file /data/user1/.ssh/id_ecdsa-cert type -1
debug1: identity file /data/user1/.ssh/id_ecdsa_sk type -1
debug1: identity file /data/user1/.ssh/id_ecdsa_sk-cert type -1
debug1: identity file /data/user1/.ssh/id_ed25519 type -1
debug1: identity file /data/user1/.ssh/id_ed25519-cert type -1
debug1: identity file /data/user1/.ssh/id_ed25519_sk type -1
debug1: identity file /data/user1/.ssh/id_ed25519_sk-cert type -1
debug1: identity file /data/user1/.ssh/id_xmss type -1
debug1: identity file /data/user1/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.2p1 Ubuntu-4ubuntu0.1
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.2p1 Ubuntu-4ubuntu0.3
debug1: match: OpenSSH_8.2p1 Ubuntu-4ubuntu0.3 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.0.10:22 as 'user1'
debug3: hostkeys_foreach: reading file "/data/user1/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /data/user1/.ssh/known_hosts:7
debug3: load_hostkeys: loaded 1 keys from 192.168.0.10
debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],[email protected],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,[email protected],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,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],rsa-sha2-512,rsa-sha2-256,ssh-rsa,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],ssh-ed25519,[email protected]
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: [email protected],diffie-hellman-group-exchange-sha256
debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: [email protected],[email protected],[email protected],aes256-ctr,aes192-ctr,aes128-ctr
debug2: ciphers stoc: [email protected],[email protected],[email protected],aes256-ctr,aes192-ctr,aes128-ctr
debug2: MACs ctos: [email protected],[email protected],[email protected],hmac-sha2-512,hmac-sha2-256,[email protected]
debug2: MACs stoc: [email protected],[email protected],[email protected],hmac-sha2-512,hmac-sha2-256,[email protected]
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: [email protected]
debug1: kex: host key algorithm: rsa-sha2-512
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ssh-rsa SHA256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
debug3: hostkeys_foreach: reading file "/data/user1/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /data/user1/.ssh/known_hosts:7
debug3: load_hostkeys: loaded 1 keys from 192.168.0.10
debug1: Host '192.168.0.10' is known and matches the RSA host key.
debug1: Found key in /data/user1/.ssh/known_hosts:7
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey out after 134217728 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 134217728 blocks
debug1: Will attempt key: /data/user1/.ssh/id_rsa
debug1: Will attempt key: /data/user1/.ssh/id_dsa
debug1: Will attempt key: /data/user1/.ssh/id_ecdsa
debug1: Will attempt key: /data/user1/.ssh/id_ecdsa_sk
debug1: Will attempt key: /data/user1/.ssh/id_ed25519
debug1: Will attempt key: /data/user1/.ssh/id_ed25519_sk
debug1: Will attempt key: /data/user1/.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,[email protected],ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected]>
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 53
debug3: input_userauth_banner
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
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /data/user1/.ssh/id_rsa
debug3: sign_and_send_pubkey: RSA SHA256:yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
debug3: sign_and_send_pubkey: signing using rsa-sha2-512 SHA256:yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
Connection closed by 192.168.0.10 port 22
This is the log to another server that I can access without problem:
OpenSSH_8.2p1 Ubuntu-4ubuntu0.1, OpenSSL 1.1.1f 31 Mar 2020
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 4: Applying options for *
debug2: resolve_canonicalize: hostname 192.168.0.11 is address
debug2: ssh_connect_direct
debug1: Connecting to 192.168.0.11 [192.168.0.11] port 22.
debug1: Connection established.
debug1: identity file /data/user1/.ssh/id_rsa type -1
debug1: identity file /data/user1/.ssh/id_rsa-cert type -1
debug1: identity file /data/user1/.ssh/id_dsa type -1
debug1: identity file /data/user1/.ssh/id_dsa-cert type -1
debug1: identity file /data/user1/.ssh/id_ecdsa type -1
debug1: identity file /data/user1/.ssh/id_ecdsa-cert type -1
debug1: identity file /data/user1/.ssh/id_ecdsa_sk type -1
debug1: identity file /data/user1/.ssh/id_ecdsa_sk-cert type -1
debug1: identity file /data/user1/.ssh/id_ed25519 type -1
debug1: identity file /data/user1/.ssh/id_ed25519-cert type -1
debug1: identity file /data/user1/.ssh/id_ed25519_sk type -1
debug1: identity file /data/user1/.ssh/id_ed25519_sk-cert type -1
debug1: identity file /data/user1/.ssh/id_xmss type -1
debug1: identity file /data/user1/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.2p1 Ubuntu-4ubuntu0.1
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.7p1 Debian-5+deb8u4
debug1: match: OpenSSH_6.7p1 Debian-5+deb8u4 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.0.11:22 as 'user1'
debug3: hostkeys_foreach: reading file "/data/user1/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /data/user1/.ssh/known_hosts:2
debug3: load_hostkeys: loaded 1 keys from 192.168.0.11
debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],[email protected],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,[email protected],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,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],rsa-sha2-512,rsa-sha2-256,ssh-rsa,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],ssh-ed25519,[email protected]
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: [email protected],diffie-hellman-group-exchange-sha256
debug2: host key algorithms: ssh-rsa,ssh-dss
debug2: ciphers ctos: [email protected],[email protected],[email protected],aes256-ctr,aes192-ctr,aes128-ctr
debug2: ciphers stoc: [email protected],[email protected],[email protected],aes256-ctr,aes192-ctr,aes128-ctr
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],hmac-sha2-512,hmac-sha2-256,hmac-ripemd160,[email protected]
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],hmac-sha2-512,hmac-sha2-256,hmac-ripemd160,[email protected]
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: [email protected]
debug1: kex: host key algorithm: ssh-rsa
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ssh-rsa SHA256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
debug3: hostkeys_foreach: reading file "/data/user1/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /data/user1/.ssh/known_hosts:2
debug3: load_hostkeys: loaded 1 keys from 192.168.0.11
debug1: Host '192.168.0.11' is known and matches the RSA host key.
debug1: Found key in /data/user1/.ssh/known_hosts:2
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey out after 134217728 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 134217728 blocks
debug1: Will attempt key: /data/user1/.ssh/id_rsa
debug1: Will attempt key: /data/user1/.ssh/id_dsa
debug1: Will attempt key: /data/user1/.ssh/id_ecdsa
debug1: Will attempt key: /data/user1/.ssh/id_ecdsa_sk
debug1: Will attempt key: /data/user1/.ssh/id_ed25519
debug1: Will attempt key: /data/user1/.ssh/id_ed25519_sk
debug1: Will attempt key: /data/user1/.ssh/id_xmss
debug2: pubkey_prepare: done
debug3: send packet: type 5
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 53
debug3: input_userauth_banner
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
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /data/user1/.ssh/id_rsa
debug3: sign_and_send_pubkey: RSA SHA256:yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
debug3: sign_and_send_pubkey: signing using ssh-rsa SHA256:yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 52
debug1: Authentication succeeded (publickey).
Authenticated to 192.168.0.11 ([192.168.0.11]:22).
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug3: send packet: type 90
debug1: Requesting [email protected]
debug3: send packet: type 80
debug1: Entering interactive session.
debug1: pledge: network
debug3: receive packet: type 91
debug2: channel_input_open_confirmation: channel 0: callback start
debug2: fd 3 setting TCP_NODELAY
debug3: ssh_packet_set_tos: set IP_TOS 0x10
debug2: client_session2_setup: id 0
debug2: channel 0: request pty-req confirm 1
debug3: send packet: type 98
debug1: Sending environment.
debug3: Ignored env SHELL
debug3: Ignored env PWD
debug3: Ignored env LOGNAME
debug3: Ignored env HOME
debug3: Ignored env TERM
debug3: Ignored env USER
debug3: Ignored env SHLVL
debug3: Ignored env PATH
debug3: Ignored env MAIL
debug3: Ignored env _
debug2: channel 0: request shell confirm 1
debug3: send packet: type 98
debug2: channel_input_open_confirmation: channel 0: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug3: receive packet: type 99
debug2: channel_input_status_confirm: type 99 id 0
debug2: PTY allocation request accepted on channel 0
debug2: channel 0: rcvd adjust 2097152
debug3: receive packet: type 99
debug2: channel_input_status_confirm: type 99 id 0
debug2: shell request accepted on channel 0
How can fix it?
I solved, there problem was in the PAM module on the target server.
The source server can establish the connection but the user1 was not allowed (on target server) to access it in PAM module.
On the target server I fix in this way:
In the file /etc/security/access.conf there isn't the user1.
I added it:
cat /etc/security/access.conf
-: ALL EXCEPT toor :LOCAL
-: ALL EXCEPT monitor_cli user1 toor :ALL
Restart the sshd service:
service sshd restart
and it works