Bypassing workplace HTTP proxy (using SSH, or other)SSH to Cygwin is slow to respondSSH passwordless...

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Bypassing workplace HTTP proxy (using SSH, or other)


SSH to Cygwin is slow to respondSSH passwordless authentication failureServer connection closed by remote hostSSH 'Host key verification failed' errorSSH error ssh_exchange_identification: read: Connection reset by peerDid I just send my private ssh key?unable to ssh after generated public and private keys in windows 7Unable to connect to SSH after generated public key and private keyTunneling ssh through draconic http proxyRsync via SSH doesn't work













0
















  1. The workplace proxy (from here workproxy) is on port 8080; it requires NTLM authentication. I've been able to achieve this using NTLMAPS. I've tested NTLMAPS using all of my browsers, and the manual NTLM authentication works fine. The proxy seems to allow some HTTPS (port 443) connections, as I'm able to bank within the country, but not with a foreign bank.


  2. I've setup a home machine (let's call it homesvr), also Windows, to run an SSH server on port 443, everything with regards to the SSH server works. (I'm running it on Cygwin).


  3. On the work machine I have Cygwin, and I'm attempting to SSH to homesvr using the following settings --



~/.SSH/config:




Host *

ProxyCommand corkscrew localhost 5865 %h %p /home/WinUser/.SSH/home.auth




~/.SSH/home.auth:




HomeWinUser:HomeWinPass




SSH -v homesvr -p 443 output is ...




OpenSSH_5.8p1, OpenSSL 0.9.8r 8 Feb 2011

debug1: Reading configuration data /home/WinUser/.ssh/config

debug1: Applying options for *

debug1: Reading configuration data /etc/ssh_config

debug1: Executing proxy command: exec corkscrew 127.0.0.1 5865 homesvr 443 /home/WinUser/.ssh/home.auth

debug1: permanently_drop_suid: 400

debug1: identity file /home/uidb5693/.ssh/id_rsa type -1

debug1: identity file /home/uidb5693/.ssh/id_rsa-cert type -1

debug1: identity file /home/uidb5693/.ssh/id_dsa type -1

debug1: identity file /home/uidb5693/.ssh/id_dsa-cert type -1

debug1: identity file /home/uidb5693/.ssh/id_ecdsa type -1

debug1: identity file /home/uidb5693/.ssh/id_ecdsa-cert type -1




pause




ssh_exchange_identification: Connection closed by remote host




It seems as though the connection is established, but it is not authenticating properly with homesvr and hence timing out on login. Removing the home.auth file from .ssh/config results in the same behavior.



This has frustrated me for nearly a week. Any advice is highly appreciated.










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  • 1





    Assuming it doesn't require authentication because you don't get prompted probably isn't a good idea. If you are on a domain at work your browser could be silently passing your NTLM credentials.

    – Zoredache
    May 6 '11 at 19:32











  • It seems as though you are absolutely right about the NTLM credentials being passed to the workproxy. I've successfully used ntlmaps to authenticate "manually", by running a local proxy (ntlmaps) and passing it my correct plain text credentials. Now instead of receiving the Proxy Authorization Required error, the terminal hangs on the debug message right before that and doesn't give me any chance to enter my password on the SSH server. It seems as though I've done the hard part, I've bypassed the proxy and connected, now I just need to forward the output

    – user80096
    May 6 '11 at 20:15






  • 3





    Standard disclaimer: you're responsible for the consequences if you get in trouble with your IT department or management for trying to bypass their proxy.

    – nhinkle
    May 7 '11 at 19:01
















0
















  1. The workplace proxy (from here workproxy) is on port 8080; it requires NTLM authentication. I've been able to achieve this using NTLMAPS. I've tested NTLMAPS using all of my browsers, and the manual NTLM authentication works fine. The proxy seems to allow some HTTPS (port 443) connections, as I'm able to bank within the country, but not with a foreign bank.


  2. I've setup a home machine (let's call it homesvr), also Windows, to run an SSH server on port 443, everything with regards to the SSH server works. (I'm running it on Cygwin).


  3. On the work machine I have Cygwin, and I'm attempting to SSH to homesvr using the following settings --



~/.SSH/config:




Host *

ProxyCommand corkscrew localhost 5865 %h %p /home/WinUser/.SSH/home.auth




~/.SSH/home.auth:




HomeWinUser:HomeWinPass




SSH -v homesvr -p 443 output is ...




OpenSSH_5.8p1, OpenSSL 0.9.8r 8 Feb 2011

debug1: Reading configuration data /home/WinUser/.ssh/config

debug1: Applying options for *

debug1: Reading configuration data /etc/ssh_config

debug1: Executing proxy command: exec corkscrew 127.0.0.1 5865 homesvr 443 /home/WinUser/.ssh/home.auth

debug1: permanently_drop_suid: 400

debug1: identity file /home/uidb5693/.ssh/id_rsa type -1

debug1: identity file /home/uidb5693/.ssh/id_rsa-cert type -1

debug1: identity file /home/uidb5693/.ssh/id_dsa type -1

debug1: identity file /home/uidb5693/.ssh/id_dsa-cert type -1

debug1: identity file /home/uidb5693/.ssh/id_ecdsa type -1

debug1: identity file /home/uidb5693/.ssh/id_ecdsa-cert type -1




pause




ssh_exchange_identification: Connection closed by remote host




It seems as though the connection is established, but it is not authenticating properly with homesvr and hence timing out on login. Removing the home.auth file from .ssh/config results in the same behavior.



This has frustrated me for nearly a week. Any advice is highly appreciated.










share|improve this question
















bumped to the homepage by Community 4 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.











  • 1





    Assuming it doesn't require authentication because you don't get prompted probably isn't a good idea. If you are on a domain at work your browser could be silently passing your NTLM credentials.

    – Zoredache
    May 6 '11 at 19:32











  • It seems as though you are absolutely right about the NTLM credentials being passed to the workproxy. I've successfully used ntlmaps to authenticate "manually", by running a local proxy (ntlmaps) and passing it my correct plain text credentials. Now instead of receiving the Proxy Authorization Required error, the terminal hangs on the debug message right before that and doesn't give me any chance to enter my password on the SSH server. It seems as though I've done the hard part, I've bypassed the proxy and connected, now I just need to forward the output

    – user80096
    May 6 '11 at 20:15






  • 3





    Standard disclaimer: you're responsible for the consequences if you get in trouble with your IT department or management for trying to bypass their proxy.

    – nhinkle
    May 7 '11 at 19:01














0












0








0









  1. The workplace proxy (from here workproxy) is on port 8080; it requires NTLM authentication. I've been able to achieve this using NTLMAPS. I've tested NTLMAPS using all of my browsers, and the manual NTLM authentication works fine. The proxy seems to allow some HTTPS (port 443) connections, as I'm able to bank within the country, but not with a foreign bank.


  2. I've setup a home machine (let's call it homesvr), also Windows, to run an SSH server on port 443, everything with regards to the SSH server works. (I'm running it on Cygwin).


  3. On the work machine I have Cygwin, and I'm attempting to SSH to homesvr using the following settings --



~/.SSH/config:




Host *

ProxyCommand corkscrew localhost 5865 %h %p /home/WinUser/.SSH/home.auth




~/.SSH/home.auth:




HomeWinUser:HomeWinPass




SSH -v homesvr -p 443 output is ...




OpenSSH_5.8p1, OpenSSL 0.9.8r 8 Feb 2011

debug1: Reading configuration data /home/WinUser/.ssh/config

debug1: Applying options for *

debug1: Reading configuration data /etc/ssh_config

debug1: Executing proxy command: exec corkscrew 127.0.0.1 5865 homesvr 443 /home/WinUser/.ssh/home.auth

debug1: permanently_drop_suid: 400

debug1: identity file /home/uidb5693/.ssh/id_rsa type -1

debug1: identity file /home/uidb5693/.ssh/id_rsa-cert type -1

debug1: identity file /home/uidb5693/.ssh/id_dsa type -1

debug1: identity file /home/uidb5693/.ssh/id_dsa-cert type -1

debug1: identity file /home/uidb5693/.ssh/id_ecdsa type -1

debug1: identity file /home/uidb5693/.ssh/id_ecdsa-cert type -1




pause




ssh_exchange_identification: Connection closed by remote host




It seems as though the connection is established, but it is not authenticating properly with homesvr and hence timing out on login. Removing the home.auth file from .ssh/config results in the same behavior.



This has frustrated me for nearly a week. Any advice is highly appreciated.










share|improve this question

















  1. The workplace proxy (from here workproxy) is on port 8080; it requires NTLM authentication. I've been able to achieve this using NTLMAPS. I've tested NTLMAPS using all of my browsers, and the manual NTLM authentication works fine. The proxy seems to allow some HTTPS (port 443) connections, as I'm able to bank within the country, but not with a foreign bank.


  2. I've setup a home machine (let's call it homesvr), also Windows, to run an SSH server on port 443, everything with regards to the SSH server works. (I'm running it on Cygwin).


  3. On the work machine I have Cygwin, and I'm attempting to SSH to homesvr using the following settings --



~/.SSH/config:




Host *

ProxyCommand corkscrew localhost 5865 %h %p /home/WinUser/.SSH/home.auth




~/.SSH/home.auth:




HomeWinUser:HomeWinPass




SSH -v homesvr -p 443 output is ...




OpenSSH_5.8p1, OpenSSL 0.9.8r 8 Feb 2011

debug1: Reading configuration data /home/WinUser/.ssh/config

debug1: Applying options for *

debug1: Reading configuration data /etc/ssh_config

debug1: Executing proxy command: exec corkscrew 127.0.0.1 5865 homesvr 443 /home/WinUser/.ssh/home.auth

debug1: permanently_drop_suid: 400

debug1: identity file /home/uidb5693/.ssh/id_rsa type -1

debug1: identity file /home/uidb5693/.ssh/id_rsa-cert type -1

debug1: identity file /home/uidb5693/.ssh/id_dsa type -1

debug1: identity file /home/uidb5693/.ssh/id_dsa-cert type -1

debug1: identity file /home/uidb5693/.ssh/id_ecdsa type -1

debug1: identity file /home/uidb5693/.ssh/id_ecdsa-cert type -1




pause




ssh_exchange_identification: Connection closed by remote host




It seems as though the connection is established, but it is not authenticating properly with homesvr and hence timing out on login. Removing the home.auth file from .ssh/config results in the same behavior.



This has frustrated me for nearly a week. Any advice is highly appreciated.







ssh http https sshd http-proxy






share|improve this question















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share|improve this question




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edited May 10 '11 at 13:54







user80096

















asked May 6 '11 at 19:07









user80096user80096

13




13





bumped to the homepage by Community 4 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







bumped to the homepage by Community 4 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.










  • 1





    Assuming it doesn't require authentication because you don't get prompted probably isn't a good idea. If you are on a domain at work your browser could be silently passing your NTLM credentials.

    – Zoredache
    May 6 '11 at 19:32











  • It seems as though you are absolutely right about the NTLM credentials being passed to the workproxy. I've successfully used ntlmaps to authenticate "manually", by running a local proxy (ntlmaps) and passing it my correct plain text credentials. Now instead of receiving the Proxy Authorization Required error, the terminal hangs on the debug message right before that and doesn't give me any chance to enter my password on the SSH server. It seems as though I've done the hard part, I've bypassed the proxy and connected, now I just need to forward the output

    – user80096
    May 6 '11 at 20:15






  • 3





    Standard disclaimer: you're responsible for the consequences if you get in trouble with your IT department or management for trying to bypass their proxy.

    – nhinkle
    May 7 '11 at 19:01














  • 1





    Assuming it doesn't require authentication because you don't get prompted probably isn't a good idea. If you are on a domain at work your browser could be silently passing your NTLM credentials.

    – Zoredache
    May 6 '11 at 19:32











  • It seems as though you are absolutely right about the NTLM credentials being passed to the workproxy. I've successfully used ntlmaps to authenticate "manually", by running a local proxy (ntlmaps) and passing it my correct plain text credentials. Now instead of receiving the Proxy Authorization Required error, the terminal hangs on the debug message right before that and doesn't give me any chance to enter my password on the SSH server. It seems as though I've done the hard part, I've bypassed the proxy and connected, now I just need to forward the output

    – user80096
    May 6 '11 at 20:15






  • 3





    Standard disclaimer: you're responsible for the consequences if you get in trouble with your IT department or management for trying to bypass their proxy.

    – nhinkle
    May 7 '11 at 19:01








1




1





Assuming it doesn't require authentication because you don't get prompted probably isn't a good idea. If you are on a domain at work your browser could be silently passing your NTLM credentials.

– Zoredache
May 6 '11 at 19:32





Assuming it doesn't require authentication because you don't get prompted probably isn't a good idea. If you are on a domain at work your browser could be silently passing your NTLM credentials.

– Zoredache
May 6 '11 at 19:32













It seems as though you are absolutely right about the NTLM credentials being passed to the workproxy. I've successfully used ntlmaps to authenticate "manually", by running a local proxy (ntlmaps) and passing it my correct plain text credentials. Now instead of receiving the Proxy Authorization Required error, the terminal hangs on the debug message right before that and doesn't give me any chance to enter my password on the SSH server. It seems as though I've done the hard part, I've bypassed the proxy and connected, now I just need to forward the output

– user80096
May 6 '11 at 20:15





It seems as though you are absolutely right about the NTLM credentials being passed to the workproxy. I've successfully used ntlmaps to authenticate "manually", by running a local proxy (ntlmaps) and passing it my correct plain text credentials. Now instead of receiving the Proxy Authorization Required error, the terminal hangs on the debug message right before that and doesn't give me any chance to enter my password on the SSH server. It seems as though I've done the hard part, I've bypassed the proxy and connected, now I just need to forward the output

– user80096
May 6 '11 at 20:15




3




3





Standard disclaimer: you're responsible for the consequences if you get in trouble with your IT department or management for trying to bypass their proxy.

– nhinkle
May 7 '11 at 19:01





Standard disclaimer: you're responsible for the consequences if you get in trouble with your IT department or management for trying to bypass their proxy.

– nhinkle
May 7 '11 at 19:01










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you should try openvpn at homesrv then connect through it






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    you should try openvpn at homesrv then connect through it






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      you should try openvpn at homesrv then connect through it






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        you should try openvpn at homesrv then connect through it






        share|improve this answer















        you should try openvpn at homesrv then connect through it







        share|improve this answer














        share|improve this answer



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        edited May 6 '11 at 22:10









        studiohack

        11.3k1880114




        11.3k1880114










        answered May 6 '11 at 21:07









        FrankFrank

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