sFTP to remote storage no longer works

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  • This topic has 2 replies, 3 voices, and was last updated 6 years ago by k5.
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  • November 25, 2018 at 10:02 am #322246
    Manfred Schneider
    Participant

    Hi,

    I do a routinely backup to a remote storage (Strato HiDrive).

    Up until the latest update of UpdraftPlus (from 2.15.3.24 to 2.15.5.1) all worked fine for me.

    AFTER the last update UpdraftPlus is no longer able to connect to the remote storage.

    In the email logs I find

    2104.744 (4) Requesting upload of the files that have not yet been successfully uploaded (177)
    2104.748 (4) Cloud backup selection (1/1): sftp with instance (1/1) (last)
    2104.749 (4) Beginning dispatch of backup to remote (sftp) (instance identifier s-8c0e2c92dca51af6269ca99ad667e53c)
    2104.853 (4) PHP event: code E_USER_NOTICE: Server Host Key Algorithm Mismatch (line 1816, wp-content/plugins/updraftplus/vendor/phpseclib/phpseclib/phpseclib/Net/SSH2.php)
    2104.853 (4) SSH 2 login failed

    When I connect to the remote storage via FileZilla, all works fine. Now I am confused.

    I did NOT change/reconfigure UpdraftPlus or FileZilla since weeks. FileZilla works / can connect but Updraftplus no longer works / cannot connect since the last update.

    Please advice.

    Thanks.

    Kind regards,

    Manfred Schneider

    November 26, 2018 at 11:07 am #322533
    udadmin
    Keymaster

    Hi,

    We think this is due to a change in the third-party library that handles SFTP, particularly this issue – https://github.com/phpseclib/phpseclib/issues/1319 . Are you able to share (via a private message) login credentials for an affected server? This will enable us to test and confirm a fix.

    Many thanks,
    David

    December 20, 2018 at 2:19 pm #329605
    k5
    Participant

    Hello world!

    Works again with current version 2.16.0.x

    Cheers!
    Karsten

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