我需要配置一个脚本来将一些文件从一台 Ubuntu 服务器复制到另一台。密钥用途允许在授权密钥在远程服务器上。
我正在尝试配置这个脚本：
#!/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
我收到此日志：
Executing: program /usr/bin/ssh host 192.168.0.10, user user1, command scp -v -r -d -t /data/logs/
lost connection
我可以使用远程服务器上的帐户进行连接。但是当我尝试运行脚本时，日志如下：
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
这是我可以毫无问题地访问的另一台服务器的日志：
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
如何修复它？
答案1
我解决了，问题出在目标服务器上的 PAM 模块。
源服务器可以建立连接，但不允许user1（在目标服务器上）在 PAM 模块中访问它。在目标服务器上，我按以下方式修复：
文件中/etc/security/access.conf没有user1。
我添加了它：
cat /etc/security/access.conf
-: ALL EXCEPT toor :LOCAL
-: ALL EXCEPT monitor_cli user1 toor :ALL
重启sshd服务：
service sshd restart
并且有效