The error keys;
Gitlab error - “ssh_exchange_identification: read: Connection reset by peer”
in /var/log/gitlab/gitlab-rails/production.log
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.
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ActionView::Template::Error ():
1: %li
2: .row
3: .col-md-8.col-lg-7
4: %strong.light-header= hook.url
5: %div
6: - ProjectHook.triggers.each_value do |event|
7: - if hook.public_send(event)
.
.
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Solution
find in /etc/ssh/sshd_config
MaxStartups
and increase the numbers.
MaxStartups 500:10:600
500: Number of unauthenticated connections before we start dropping
10: Percentage chance of dropping once we reach 10 (increases linearly for more than 10)
600: Maximum number of connections at which we start dropping everything
Restart the sshd service via
/etc/init.d/ssh restart
OR
systemctl restart sshd