External storage SFTP timeout (how to increase timeout?)

nfrederickx · December 1, 2016, 8:48am

I’m having trouble connectiong to SFTP with external storage.
I suspect it is a timeout issue.

Here is the logging error:
Cannot connect to ***.your-storagebox.de:22. Error 110. Connection timed out at /var/www/nextcloud/3rdparty/phpseclib/phpseclib/phpseclib/Net/SSH2.php#1011

When I try to connect through sftp on my server it takes about a minute, but I’ll get through.
Nextcloud stops trying after 10 seconds or so.

My question:

Where can I increase the timeout setting for SFTP external storage?

I’m using Nextcloud 10.1, on Ubuntu 16.04 Server.

Thanks!

tflidd · December 3, 2016, 10:37am

Here they initiate a connection with a default timeout of 10s:

github.com

nextcloud/3rdparty/blob/f2974c2e72b2ad5ab7ae745936c4d866405d2b61/phpseclib/phpseclib/phpseclib/Net/SSH2.php#L881


 *
 * $host can either be a string, representing the host, or a stream resource.
 *
 * @param mixed $host
 * @param int $port
 * @param int $timeout
 * @see self::login()
 * @return \phpseclib\Net\SSH2
 * @access public
 */
function __construct($host, $port = 22, $timeout = 10)
{
    $this->message_numbers = array(
        1 => 'NET_SSH2_MSG_DISCONNECT',
        2 => 'NET_SSH2_MSG_IGNORE',
        3 => 'NET_SSH2_MSG_UNIMPLEMENTED',
        4 => 'NET_SSH2_MSG_DEBUG',
        5 => 'NET_SSH2_MSG_SERVICE_REQUEST',
        6 => 'NET_SSH2_MSG_SERVICE_ACCEPT',
        20 => 'NET_SSH2_MSG_KEXINIT',
        21 => 'NET_SSH2_MSG_NEWKEYS',

Try to increase this value, perhaps it is at other points of the code as well. But instead of increasing timeouts, I would rather investigate why there is such a timeout.

nfrederickx · December 5, 2016, 3:49pm

I fixed the issue by disabling ipv6 on my server.
Now it works immediately.

Thanks for your input!