Eu tenho um Debian customizado (construído com o debootstrap)
Linux debian 4.9.0-4-686 #1 SMP Debian 4.9.51-1 (2017-09-28) i686 GNU/Linux
com sistema de arquivos somente leitura
Aqui está a configuração do túnel (funciona perfeitamente em uma instalação clássica)
Host *
# ForwardAgent no
# ForwardX11 no
# ForwardX11Trusted yes
# RhostsRSAAuthentication no
# RSAAuthentication yes
PasswordAuthentication yes
# HostbasedAuthentication no
# GSSAPIAuthentication no
# GSSAPIDelegateCredentials no
# GSSAPIKeyExchange no
# GSSAPITrustDNS no
# BatchMode no
CheckHostIP yes
# AddressFamily any
# ConnectTimeout 0
# StrictHostKeyChecking ask
# IdentityFile ~/.ssh/identity
# IdentityFile ~/.ssh/id_rsa
# IdentityFile ~/.ssh/id_dsa
# IdentityFile ~/.ssh/id_ecdsa
# IdentityFile ~/.ssh/id_ed25519
# Port 22
Protocol 2
# Cipher 3des
Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc
# MACs hmac-md5,hmac-sha1,[email protected],hmac-ripemd160
# EscapeChar ~
Tunnel yes
# TunnelDevice any:any
# PermitLocalCommand no
# VisualHostKey no
# ProxyCommand ssh -q -W %h:%p gateway.example.com
# RekeyLimit 1G 1h
SendEnv LANG LC_*
HashKnownHosts yes
Eu montei o túnel:
ssh -ND 1080 -vvv -p 443 user@server
a saída parece bem:
OpenSSH_7.4p1 Debian-10+deb9u1, OpenSSL 1.0.2l 25 May 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "xxxx" port 443
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to xxxxx [xxxx] port 443.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: SELinux support disabled
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.4p1 Debian-10+deb9u1
debug1: Remote protocol version 2.0, remote software version dropbear_2012.55
debug1: no match: dropbear_2012.55
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to xxxxxxx:443 as 'xxxxxxx'
debug3: put_host_port: [xxxxxxxx]:443
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-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc
debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc
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: diffie-hellman-group1-sha1,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa,ssh-dss
debug2: ciphers ctos: aes128-ctr,3des-ctr,aes256-ctr,aes128-cbc,3des-cbc,aes256-cbc,twofish256-cbc,twofish-cbc,twofish128-cbc
debug2: ciphers stoc: aes128-ctr,3des-ctr,aes256-ctr,aes128-cbc,3des-cbc,aes256-cbc,twofish256-cbc,twofish-cbc,twofish128-cbc
debug2: MACs ctos: hmac-sha1-96,hmac-sha1,hmac-md5
debug2: MACs stoc: hmac-sha1-96,hmac-sha1,hmac-md5
debug2: compression ctos: zlib,[email protected],none
debug2: compression stoc: zlib,[email protected],none
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: diffie-hellman-group14-sha1
debug1: kex: host key algorithm: ssh-rsa
debug1: kex: server->client cipher: aes128-ctr MAC: hmac-sha1 compression: none
debug1: kex: client->server cipher: aes128-ctr MAC: hmac-sha1 compression: none
debug1: sending SSH2_MSG_KEXDH_INIT
debug2: bits set: 1024/2048
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEXDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ssh-rsa SHA256:k5AHnNs87cyG5my8AcjKp6KY1tWUeGIH2b3ZWALCsnU
debug3: put_host_port: [xxx.xxx.xx.xx]:443
debug3: put_host_port: [xxxxxxxxxxx]:443
debug1: checking without port identifier
The authenticity of host '[xxxxxx]:443 ([xxx.xxx.xx.xx]:443)' can't be established.
RSA key fingerprint is SHA256:k5AHnNs87cyG5my8AcjKp6KY1tWUeGIH2b3ZWALCsnU.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '[xxxxxx]:443,[xxxxxx]:443' (RSA) to the list of known hosts.
debug2: bits set: 999/2048
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey 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 after 4294967296 blocks
debug2: key: /root/.ssh/id_rsa ((nil))
debug2: key: /root/.ssh/id_dsa ((nil))
debug2: key: /root/.ssh/id_ecdsa ((nil))
debug2: key: /root/.ssh/id_ed25519 ((nil))
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
+++++++++xxxxxxxxx+++++++++
* No Reupload and Repost Your Account
* No DDOS
* No Hacking
* No Torrent
* No Fraud
* No Spam etc.
You are allowed a maximum of 3 Bitvise for using SSH account!!
Don't forget to support us!! xxxxxxxx
+++++++++XXXXXXXXXX+++++++++
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug3: start over, passed a different list publickey,password
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
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
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
xxxxxxxxx password:
debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 52
debug1: Authentication succeeded (password).
Authenticated to xxxxx ([xxxxx]:443).
debug1: Local connections to LOCALHOST:1080 forwarded to remote address socks:0
debug3: channel_setup_fwd_listener_tcpip: type 2 wildcard 0 addr NULL
debug1: Local forwarding listening on 127.0.0.1 port 1080.
debug2: fd 4 setting O_NONBLOCK
debug3: fd 4 is O_NONBLOCK
debug1: channel 0: new [port listener]
debug3: sock_set_v6only: set socket 5 IPV6_V6ONLY
debug1: Local forwarding listening on ::1 port 1080.
bind: Cannot assign requested address
debug1: Requesting tun unit 2147483647 in mode 1
debug1: sys_tun_open: tunnel mode 1 fd 5
debug2: fd 5 setting O_NONBLOCK
debug3: fd 5 is O_NONBLOCK
debug1: channel 1: new [tun]
debug3: send packet: type 90
debug2: fd 3 setting TCP_NODELAY
debug3: ssh_packet_set_tos: set IP_TOS 0x10
debug1: Entering interactive session.
debug1: pledge: network
debug3: receive packet: type 92
channel 1: open failed: unknown channel type:
debug2: channel 1: zombie
debug2: channel 1: garbage collecting
debug1: channel 1: free: tun, nchannels 2
debug3: channel 1: status: The following connections are open:
# lsof -i :1080
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
ssh 3937 root 4u IPv4 60066 0t0 TCP localhost:socks (LISTEN)
#netstat -ltpe
tcp 0 0 127.0.0.1:1080 0.0.0.0:* LISTEN 3937/ssh
tcp 0 0 192.168.1.29:40112 xxx.xxx.xx.xx:443 ESTABLISHED 3937/ssh
então eu configurei o firefox-esr (o novo nome do iceweasel no Debian) para usar o proxy recém-criado:
Configuração manual de proxy
proxy HTTP, proxy ssl, proxy ftp = desmarcado 'use este proxy para todos os protocolos' = desmarcado.
meias host 127.0.0.1 porta 1080
Nenhum proxy para localhost, 127.0.0.1
Então, ao fazer o pedido http, nada acontece (o navegador simplesmente trava).
Eu tento tor (configurado com Socks5Proxy 127.0.0.1:1080), ele faz a mesma coisa
o túnel ssh não diz nada (nenhuma saída no modo detalhado)
tcpdump -i wlp2s0 port 1080
- > sem tráfego
então eu tento:
nc 127.0.0.1 1080
- > nada acontece
último teste, mas não tenho certeza se é relevante:
Eu mato o túnel e faço:
nc -l -p 1080
netstat diz:
Proto Recv-Q Send-Q Local Address Foreign Address State User Inode PID/Program name
tcp 0 0 0.0.0.0:socks 0.0.0.0:* LISTEN root 65776 3985/nc
nc 127.0.0.1 1080
- > nada acontece
iptables está vazio:
# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
conclusão: parece que o problema não se deve ao ssh ou ao navegador, mas talvez ao socket (?).
Estou preso daí.
Obrigado pela sua ajuda pessoal! Eu preciso disso para estar trabalhando!