Comments on: Use Dropbear SSH to save memory http://hostingfu.com/article/use-dropbear-ssh-to-save-memory Web Hosting Blog by a Software Developer Fri, 02 Jul 2010 10:59:16 +0000 hourly 1 http://wordpress.org/?v=3.0 By: scotty http://hostingfu.com/article/use-dropbear-ssh-to-save-memory/comment-page-#comment-84 scotty Mon, 05 Nov 2007 22:19:38 +0000 http://hostingfu.com/?p=28#comment-84 <p>Use -E to log into stderr instead of syslog.</p> Use -E to log into stderr instead of syslog.

]]> By: orvtech http://hostingfu.com/article/use-dropbear-ssh-to-save-memory/comment-page-1#comment-85 orvtech Mon, 05 Nov 2007 16:02:13 +0000 http://hostingfu.com/?p=28#comment-85 <p>is there a way to have a custom log besides /var/log/messages ? i do not have /dev/log and syslog, metalog wont start so i would like dropbear to log to /var/log/dropbear. </p> <p>regards.</p> is there a way to have a custom log besides /var/log/messages ? i do not have /dev/log and syslog, metalog wont start so i would like dropbear to log to /var/log/dropbear.

regards.

]]> By: Joey http://hostingfu.com/article/use-dropbear-ssh-to-save-memory/comment-page-1#comment-83 Joey Thu, 30 Nov 2006 17:31:10 +0000 http://hostingfu.com/?p=28#comment-83 <p>A lot of FTP clients open a second connection for file transfers, in addition to the one for the file listing. Some clients allow you to change this behavior. I'm fairly certain that with SmartFTP you can do it either way.</p> A lot of FTP clients open a second connection for file transfers, in addition to the one for the file listing. Some clients allow you to change this behavior. I’m fairly certain that with SmartFTP you can do it either way.

]]> By: kurtk http://hostingfu.com/article/use-dropbear-ssh-to-save-memory/comment-page-#comment-81 kurtk Fri, 10 Nov 2006 01:20:49 +0000 http://hostingfu.com/?p=28#comment-81 <p>Thanks for the feedback! WinSCP works with SFTP. I can successfully transfer files from my Windows pc to my Linux/OpenVZ VPS. Excellent! </p> <p>Here is what happens with Filezilla, using Servertype of <strong>SFTP using SSH2</strong>. I have <code>log_on_success = HOST PID</code> in <strong>/etc/xinetd.conf</strong>. I do see a new entry written to <strong>/var/log/syslog</strong> when Filezilla starts of <strong>START: ssh pid=15663 from=76.165.209</strong>. And <strong>ps aux</strong> shows a second instance of <strong>dropbear -i</strong> (in addition to the instance for Putty). And <strong>usr/lib/sftp-server</strong> is now shown to also be running. </p> <p>But when I start a file transfer within Filezilla, another new entry is written to the <strong>/etc/log/syslog</strong> of <strong>START: ssh pid=3946 from=76.165.209</strong>, and doing <strong>ps aux</strong> now shows another, third instance of <strong>dropbear -i</strong> and a new, second instance of <strong>usr/lib/sftp-server</strong>.</p> <p>I guess I'll stick with WinSCP.</p> Thanks for the feedback! WinSCP works with SFTP. I can successfully transfer files from my Windows pc to my Linux/OpenVZ VPS. Excellent!

Here is what happens with Filezilla, using Servertype of SFTP using SSH2. I have log_on_success = HOST PID in /etc/xinetd.conf. I do see a new entry written to /var/log/syslog when Filezilla starts of START: ssh pid=15663 from=76.165.209. And ps aux shows a second instance of dropbear -i (in addition to the instance for Putty). And usr/lib/sftp-server is now shown to also be running.

But when I start a file transfer within Filezilla, another new entry is written to the /etc/log/syslog of START: ssh pid=3946 from=76.165.209, and doing ps aux now shows another, third instance of dropbear -i and a new, second instance of usr/lib/sftp-server.

I guess I’ll stick with WinSCP.

]]> By: scotty http://hostingfu.com/article/use-dropbear-ssh-to-save-memory/comment-page-1#comment-82 scotty Thu, 09 Nov 2006 22:57:49 +0000 http://hostingfu.com/?p=28#comment-82 <p>Kurt,</p> <p>SFTP is a special module that belongs to OpenSSH. You'll find that in /usr/lib/misc/sftp-server (at least on my Gentoo boxes). Dropbear does not support SFTP by itself, but has reported to work with OpenSSH installed.</p> <p>Alternatively you can use the SCP protocol to copy files. WinSCP supports SCP natively, and gives you a similar explorer-like interface.</p> Kurt,

SFTP is a special module that belongs to OpenSSH. You’ll find that in /usr/lib/misc/sftp-server (at least on my Gentoo boxes). Dropbear does not support SFTP by itself, but has reported to work with OpenSSH installed.

Alternatively you can use the SCP protocol to copy files. WinSCP supports SCP natively, and gives you a similar explorer-like interface.

]]> By: kurtk http://hostingfu.com/article/use-dropbear-ssh-to-save-memory/comment-page-1#comment-80 kurtk Thu, 09 Nov 2006 20:55:28 +0000 http://hostingfu.com/?p=28#comment-80 <p>Thanks for the helpful article. If you want to use Filezilla to connect using sftp, does dropbear need openssh server? </p> <p>I installed dropbear. I kept <code>NO_START=0</code> in <strong>/etc/default/dropbear</strong>. I removed the init script for openssh:<br /> <code>update-rc.d -f ssh remove</code>. I installed xinetd, and created an xinetd configuration file similar to yours in /etc/xinetd.d/dropbear. Both putty and Filezilla worked fine -- until I decided to remove openssh server, thinking I no longer needed it. But then Filezilla could no longer connect using sftp.</p> <p>--kurt</p> Thanks for the helpful article. If you want to use Filezilla to connect using sftp, does dropbear need openssh server?

I installed dropbear. I kept NO_START=0 in /etc/default/dropbear. I removed the init script for openssh:
update-rc.d -f ssh remove. I installed xinetd, and created an xinetd configuration file similar to yours in /etc/xinetd.d/dropbear. Both putty and Filezilla worked fine — until I decided to remove openssh server, thinking I no longer needed it. But then Filezilla could no longer connect using sftp.

–kurt

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