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Editorial Team
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Asked: 2026-05-23T02:38:46+00:00

This morning, while trying to migrate some files from my test server to my

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This morning, while trying to migrate some files from my test server to my live server; I made a horrible mistake.

I was trying to pull my /etc/apache2 from the sandbox, and put it live, so I was temporarily changing the permissions in /etc/apache2 to 777, while I was migrating.

However, I had a massive distraction and changed the permissions in /etc to 777. Anyhow, I spent the last four hours fixing this problem, and it all more or less works.

I managed to get sudoers back to 0440, and everything else is at 755, which is more or less neutral.

But now, Ubuntu is instantly refusing every single kind of remote connection from every computer (except Apache, MySQL, PhpMyAdmin). When I try to make a remote connection from Putty, Tunnelier or WINSCP it just instantly refuses it with some error message like “Network Error“.

Anyhow, I really don’t want to hear how stupid I am for making this mistake, trust me; I have been hating myself all morning. But if anybody has some suggestions on how I can fix this problem, I almost certain that it is due to permissions.

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1 Answer

  1. Editorial Team

    I’m pretty sure that you are required to at least chown root and chmod go-rwx the openssh private key; Read access only on the public key;

    Same requirements may go for other keys but I’m assuming ssh is your first point of entry for this server. The man page for ssh (sshd_config) will have the exact details

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