Debug info viewable for scp/sftp Test Connection failure?

[Andrea SilasParticipant]

— Issue: On Settings page >> choose SCP/SFTP backup target >> Test Credentials >> enter all usual stuff that normally works with other migrations to dreamhost >> generic failure msg on popup after about 3-5 seconds. Same result whether we check box “Use SCP instead of SFTP” or not.

— I have the full, premium dev license, Version: 2.11.9.20.
— Source: godaddy
— Destination: Dreamhost shared hosting
— Dreamhost user: shell user with sftp privs, and we have checked that ssh and sftp work apart from doing it in Updraft Plus.
— We don’t see dreamhost blocking the ip address range that we think we are trying to connect with from godaddy.
— WordPress 4.3.1 running Nash theme.
— No security plugins or other weird ones that might be suspect.
— Selected to have debug info mailed to me, but nothing comes there or on screen.
— Just want that debug info at this point, if any way to get it. Otherwise, if that is not possible, just the fix, whatever that is.
— Doing backup with Dropbox now, which does not have any issue. Default downloadable backups also work fine.

thx

[udadminKeymaster]

Hi,

There isn’t an easy way to get debugging output on the SFTP connection; however, it can be emulated fairly easily.

UpdraftPlus uses the phpseclib library for SFTP, which is the most popular PHP SFTP library – https://phpseclib.sourceforge.net/ . If you download a copy of this library, and upload it to your webspace, and upload a copy of the test script for debugging SFTP (adjusting the username/password to match yours) – https://phpseclib.sourceforge.net/documentation/net.html#net_sftp_debug – then you should then be able to get debug output.

And/or, you could send a private reply to this post (tick the ‘private reply’ checkbox) with your SFTP credentials, and we can test what happens here.

Finally – you mention the website is with GoDaddy. I think, based on some past support questions, that some GoDaddy servers firewall outgoing connections that aren’t to common ports, and port 22 (SFTP) may be firewalled outgoing on your webserver.

David

[Author]

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