quando lancio da terminale (unico modo per avere un errore significativo)
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sftp utonto@192.168.1.5:
packet_write_wait: Connection to 192.168.1.5 port 22: Broken pipe
... ma senza successo, da errore nell' immediato
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sftp utonto@192.168.1.5:
packet_write_wait: Connection to 192.168.1.5 port 22: Broken pipe
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dpkg -l | grep ssh
sudo find /etc -iname "*ssh*"
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ii libssh-gcrypt-4:i386 0.7.3-2 i386 tiny C SSH library (gcrypt flavor)
ii libssh2-1:i386 1.7.0-1 i386 SSH2 client-side library
ii openssh-client 1:7.4p1-10+deb9u3 i386 secure shell (SSH) client, for secure access to remote machines
ii openssh-server 1:7.4p1-10+deb9u3 i386 secure shell (SSH) server, for secure access from remote machines
ii openssh-sftp-server 1:7.4p1-10+deb9u3 i386 secure shell (SSH) sftp server module, for SFTP access from remote machines
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/etc/network/if-up.d/openssh-server
/etc/pam.d/sshd
/etc/rc5.d/S01ssh
/etc/rc3.d/S01ssh
/etc/xdg/autostart/gnome-keyring-ssh.desktop
/etc/ssh
/etc/ssh/ssh_host_rsa_key.pub
/etc/ssh/ssh_host_ed25519_key
/etc/ssh/ssh_host_ecdsa_key
/etc/ssh/sshd_config
/etc/ssh/ssh_config
/etc/ssh/ssh_host_ecdsa_key.pub
/etc/ssh/ssh_host_rsa_key
/etc/ssh/ssh_host_ed25519_key.pub
/etc/default/ssh
/etc/rc4.d/S01ssh
/etc/systemd/system/multi-user.target.wants/ssh.service
/etc/systemd/system/sshd.service
/etc/X11/Xsession.d/90x11-common_ssh-agent
/etc/init/ssh.conf
/etc/init.d/ssh
/etc/ufw/applications.d/openssh-server
/etc/rc2.d/S01ssh
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sudo netstat -tulnp | grep ssh
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stat /etc/ssh/sshd_config
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tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 477/sshd
tcp6 0 0 :::22 :::* LISTEN 477/sshd
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File: /etc/ssh/sshd_config
Dim.: 3524 Blocchi: 8 Blocco di IO: 4096 file regolare
Device: 802h/2050d Inode: 8914716 Coll.: 1
Accesso: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Accesso : 2018-07-10 11:28:59.358463603 +0200
Modifica : 2018-07-10 11:28:42.474406913 +0200
Cambio : 2018-07-10 11:28:42.502407007 +0200
Creazione: -
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cat /etc/ssh/sshd_config
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# $OpenBSD: sshd_config,v 1.100 2016/08/15 12:32:04 naddy Exp $
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented. Uncommented options override the
# default value.
#Port 22
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::
#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_ecdsa_key
#HostKey /etc/ssh/ssh_host_ed25519_key
# Ciphers and keying
#RekeyLimit default none
# Logging
#SyslogFacility AUTH
#LogLevel INFO
# Authentication:
#LoginGraceTime 2m
#PermitRootLogin prohibit-password
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10
#PubkeyAuthentication yes
# Expect .ssh/authorized_keys2 to be disregarded by default in future.
#AuthorizedKeysFile .ssh/authorized_keys .ssh/authorized_keys2
#AuthorizedPrincipalsFile none
#AuthorizedKeysCommand none
#AuthorizedKeysCommandUser nobody
# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# HostbasedAuthentication
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes
# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes
#PermitEmptyPasswords no
# Change to yes to enable challenge-response passwords (beware issues with
# some PAM modules and threads)
ChallengeResponseAuthentication no
# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no
# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes
#GSSAPIStrictAcceptorCheck yes
#GSSAPIKeyExchange no
# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication. Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
UsePAM yes
#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PermitTTY yes
PrintMotd no
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
#UsePrivilegeSeparation sandbox
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#UseDNS no
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
#PermitTunnel no
#ChrootDirectory none
#VersionAddendum none
# no default banner path
#Banner none
# Allow client to pass locale environment variables
AcceptEnv LANG LC_*
# override default of no subsystems
#Subsystem sftp /usr/lib/openssh/sftp-server
Subsystem sftp /usr/lib/ssh/sftp-server
# Example of overriding settings on a per-user basis
#Match User anoncvs
# X11Forwarding no
# AllowTcpForwarding no
# PermitTTY no
# ForceCommand cvs server
ClientAliveInterval 300
ClientAliveCountMax 20
Match User dade
ChrootDirectory /home/dade
PasswordAuthentication yes
AllowTCPForwarding no
X11Forwarding no
ForceCommand internal-sftp
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...
Subsystem sftp /usr/lib/ssh/sftp-server
...
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ls -l /usr/lib/ssh/sftp-server
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...
#Subsystem sftp /usr/lib/openssh/sftp-server
...
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Subsystem sftp /usr/lib/openssh/sftp-server(decommentato)
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ssh -v utonto@192.168.1.5
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Match User dade
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# Subsystem sftp /usr/lib/openssh/sftp-server
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# ClientAliveInterval 300
# ClientAliveCountMax 20
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# Match User dade
# ChrootDirectory /home/dade
# PasswordAuthentication yes
# AllowTCPForwarding no
# X11Forwarding no
# ForceCommand internal-sftp
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ssh -v dade@dbvideo.local
OpenSSH_7.6p1 Ubuntu-4, OpenSSL 1.0.2n 7 Dec 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to dbvideo.local [192.168.178.169] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_ed25519-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.6p1 Ubuntu-4
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4p1 Debian-10+deb9u3
debug1: match: OpenSSH_7.4p1 Debian-10+deb9u3 pat OpenSSH* compat 0x04000000
debug1: Authenticating to dbvideo.local:22 as 'dade'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:u8YPqCfuiesEjFwxyKsuB7ySDZ5QlvbU8Q6/lVaQwJw
debug1: Host 'dbvideo.local' is known and matches the ECDSA host key.
debug1: Found key in /home/dade/.ssh/known_hosts:1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after 134217728 blocks
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>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /home/dade/.ssh/id_rsa
debug1: Trying private key: /home/dade/.ssh/id_dsa
debug1: Trying private key: /home/dade/.ssh/id_ecdsa
debug1: Trying private key: /home/dade/.ssh/id_ed25519
debug1: Next authentication method: password
dade@dbvideo.local's password:
debug1: Authentication succeeded (password).
Authenticated to dbvideo.local ([192.168.178.169]:22).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: pledge: network
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug1: Sending environment.
debug1: Sending env LANG = it_IT.UTF-8
Linux dbvideo 4.9.0-6-686-pae #1 SMP Debian 4.9.88-1+deb9u1 (2018-05-07) i686
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Tue Jul 10 19:07:20 2018 from 192.168.178.20
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sftp -v dade@dbvideo.local
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sftp -v dade@dbvideo.local
OpenSSH_7.6p1 Ubuntu-4, OpenSSL 1.0.2n 7 Dec 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to dbvideo.local [192.168.178.169] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/dade/.ssh/id_ed25519-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.6p1 Ubuntu-4
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4p1 Debian-10+deb9u3
debug1: match: OpenSSH_7.4p1 Debian-10+deb9u3 pat OpenSSH* compat 0x04000000
debug1: Authenticating to dbvideo.local:22 as 'dade'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:u8YPqCfuiesEjFwxyKsuB7ySDZ5QlvbU8Q6/lVaQwJw
debug1: Host 'dbvideo.local' is known and matches the ECDSA host key.
debug1: Found key in /home/dade/.ssh/known_hosts:1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after 134217728 blocks
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>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /home/dade/.ssh/id_rsa
debug1: Trying private key: /home/dade/.ssh/id_dsa
debug1: Trying private key: /home/dade/.ssh/id_ecdsa
debug1: Trying private key: /home/dade/.ssh/id_ed25519
debug1: Next authentication method: password
dade@dbvideo.local's password:
debug1: Authentication succeeded (password).
Authenticated to dbvideo.local ([192.168.178.169]:22).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: pledge: network
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug1: Sending environment.
debug1: Sending env LANG = it_IT.UTF-8
debug1: Sending subsystem: sftp
subsystem request failed on channel 0
Connection closed
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Subsystem sftp /usr/lib/openssh/sftp-server
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