Category Archives: SSH

How to Fix "SSH Public Key Authentication Failed"

Posted on June 3, 2009 by Masao

If your SSH public key authentication is failing with errors like this: $ ssh -vvv myhost.com debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Offering public key: /home/kitamura/.ssh/id_dsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply … Continue reading →

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ssh_exchange_identification: Connection closed by remote host

Posted on February 5, 2009 by Masao

On the destination server, remove the known_hosts file: rm ~/.ssh/known_hosts Remove any relevant entries in your /etc/hosts.deny file: /etc/hosts.deny: # DenyHosts: Fri Jun 25 16:10:25 2010 | sshd: xxx.xxx.xxx.xxx sshd: xxx.xxx.xxx.xxx Also, try this in your /etc/hosts.allow file /etc/hosts.allow: SSHD: … Continue reading →

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How to Automatically Start Pageant with Private Keys in Windows

Posted on December 17, 2008 by Masao

In the Startup folder in the startup menu, right-click and create a New -> Shortcut. Browse to your pageant.exe file. Add the full path to your private key enclosed with quotes. Save the shortcut. “c:\path-to-pageant\pageant.exe” “c:\path-to-key\mykey.ppk”

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How to keep SSH sessions alive

Posted on November 30, 2008 by Masao

Edit your ssh_config file like this: /etc/ssh/ssh_config: ServerAliveInterval 30 This will cause your SSH client to send a keep alive ping every 30 seconds to the server.

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