.ssh/config:
Host remote.ssh.server
ControlMaster auto
ControlPath ~/.ssh/master-%r@%h:%p
User myusername
IdentityFile id_rsa
The Code:
$ssh = Net::SSH::Perl->new($host,debug=>true,options => ["ConnectT +imeout=5","StrictHostKeyChecking=no"]); $ssh_conf="$ENV{'HOME'}/.ssh/config"; $cfg = Net::SSH::Perl::Config->new($host); $cfg->read_config($ssh_conf); if (! $USERNAME){ $USER=$cfg->get('user'); } eval{$ssh->login($USER);}; if ($@){ print "Unable to connect to $host\n$@\n"; } eval{($out, $err, $exit)=$ssh->cmd($exec_cmd);};print "Unable to e +xecute: $exec_cmd\n" if $@; ### print "\n\nmade it this far\n\n"; ### if ($out){ print $out; } else { print "$err\n$exit"; }
result:
local.host: Reading configuration data /home/myusername/.ssh/config local.host: Reading configuration data /etc/ssh_config local.host: Connecting to remote.ssh.server, port 22. local.host: Remote version string: SSH-2.0-OpenSSH_7.2 local.host: Remote protocol version 2.0, remote software version OpenSSH_7.2 local.host: Net::SSH::Perl Version 2.09, protocol version 2.0. local.host: No compat match: OpenSSH_7.2. local.host: Connection established. local.host: Sent key-exchange init (KEXINIT), waiting for response. local.host: Using curve25519-sha256@libssh.org for key exchange local.host: Host key algorithm: ssh-ed25519 local.host: Algorithms, c->s: chacha20-poly1305@openssh.com <implicit> none local.host: Algorithms, s->c: chacha20-poly1305@openssh.com <implicit> none local.host: Generating ephemeral key pair. local.host: Entering Curve 25519 Key Exchange. local.host: Sent client public key, waiting for reply. local.host: Received host key, type 'ssh-ed25519'. local.host: Host 'remote.ssh.server' is known and matches the host key. local.host: Verifying server signature. local.host: Send NEWKEYS. local.host: Waiting for NEWKEYS message. local.host: Enabling encryption/MAC/compression. local.host: Sending request for user-authentication service. local.host: SSH2_MSG_EXT_INFO received local.host: SSH Extension activated: server-sig-algs=rsa-sha2-256,rsa-sha2-512 local.host: Service accepted: ssh-userauth. local.host: Trying empty user-authentication request. local.host: Authentication methods that can continue: publickey,gssapi-keyex,gssapi-with-mic,password. local.host: Next method to try is publickey. local.host: Publickey: testing agent key '/home/myusername/.ssh/id_rsa' local.host: Public key is accepted, signing data. local.host: Key fingerprint: SHA256:rScQOC1zgitfa/IiDb7CYwPkwK/k16ViRuAfzv4ITcQ= Unable to connect to remote.ssh.server Error reading response length from auth socket. at /usr/local/lib64/perl5/Net/SSH/Perl/Auth/PublicKey.pm line 104. local.host: channel 0: new client-session local.host: Requesting channel_open for channel 0. local.host: Entering interactive session. made it this far ]$
just using "ssh -v":
]$ ssh -v remote.ssh.server "uptime" OpenSSH_7.5p1, OpenSSL 1.1.0f-fips 25 May 2017 debug1: Reading configuration data /home/myusername/.ssh/config debug1: /home/myusername/.ssh/config line 8: Applying options for remote.ssh.server debug1: Reading configuration data /etc/ssh/ssh_config debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf debug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config debug1: /etc/ssh/ssh_config.d/05-redhat.conf line 8: Applying options for * debug1: auto-mux: Trying existing master debug1: Control socket "/home/myusername/.ssh/master-myusername@remote.ssh.server:22" does not exist debug1: Connecting to remote.ssh.server xxx.xxx.xxx.xxx port 22. debug1: Connection established. debug1: key_load_public: No such file or directory debug1: identity file id_rsa type -1 debug1: key_load_public: No such file or directory debug1: identity file id_rsa-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_7.5 debug1: Remote protocol version 2.0, remote software version OpenSSH_7.2 debug1: match: OpenSSH_7.2 pat OpenSSH* compat 0x04000000 debug1: Authenticating to remote.ssh.server:22 as 'myusername' debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: curve25519-sha256@libssh.org debug1: kex: host key algorithm: ecdsa-sha2-nistp256 debug1: kex: server->client cipher: aes256-gcm@openssh.com MAC: <implicit> compression: none debug1: kex: client->server cipher: aes256-gcm@openssh.com MAC: <implicit> compression: none debug1: kex: curve25519-sha256@libssh.org need=32 dh_need=32 debug1: kex: curve25519-sha256@libssh.org need=32 dh_need=32 debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ecdsa-sha2-nistp256 SHA256:b0EOVxSO46RlNAPAeDQg66CnCsKupSxhB1Kl5ihJ9Ok debug1: Host 'remote.ssh.server' is known and matches the ECDSA host key. debug1: Found key in /home/myusername/.ssh/known_hosts:3 debug1: rekey after 4294967296 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: rekey after 4294967296 blocks debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512> debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password debug1: Next authentication method: gssapi-keyex debug1: No valid Key exchange context debug1: Next authentication method: gssapi-with-mic debug1: Unspecified GSS failure. Minor code may provide more information No Kerberos credentials available (default cache: KEYRING:persistent:1000) debug1: Unspecified GSS failure. Minor code may provide more information No Kerberos credentials available (default cache: KEYRING:persistent:1000) debug1: Next authentication method: publickey debug1: Offering RSA public key: /home/myusername/.ssh/id_rsa debug1: Server accepts key: pkalg rsa-sha2-512 blen 279 debug1: Authentication succeeded (publickey). Authenticated to remote.ssh.server (xxx.xxx.xxx.xxx:22). debug1: setting up multiplex master socket debug1: channel 4: new /home/myusername/.ssh/master-myusername@remote.ssh.server:22 debug1: channel 5: new client-session debug1: Entering interactive session. debug1: pledge: id debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0 debug1: Requesting X11 forwarding with authentication spoofing. debug1: Requesting authentication agent forwarding. debug1: Sending environment. debug1: Sending env LANG = en_US.utf8 debug1: Sending env XMODIFIERS = @im=none debug1: Sending command: uptime debug1: client_input_channel_req: channel 5 rtype exit-status reply 0 debug1: client_input_channel_req: channel 5 rtype eow@openssh.com reply 0 15:23:01 up 50 days, 19:36, 1 user, load average: 0.45, 0.25, 0.24 debug1: channel 5: free: client-session, nchannels 6 debug1: channel 0: free: port listener, nchannels 5 debug1: channel 1: free: port listener, nchannels 4 debug1: channel 2: free: port listener, nchannels 3 debug1: channel 3: free: port listener, nchannels 2 debug1: channel 4: free: /home/myusername/.ssh/master-myusername@remote.ssh.server:22, nchannels 1 Transferred: sent 2744, received 2564 bytes, in 0.1 seconds Bytes per second: sent 27909.5, received 26078.7 debug1: Exit status 0
In reply to Issue with Net::SSH::Perl - can't establish connection by dayton
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