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I followed this guide to set up ssh key on my digital ocean droplet, but since I made step 4 my file system went read-only. I changed /etc/ssh/sshd_config from PermitRootLogin yes to PermitRootLogin without-password and then reload ssh; and when I logged back in, I had no writing rights anymore.

I can log in using ssh root@123.45.67.89 but it does not ask me for any password, and I can not modify any file.

Before doing this, I upgraded my ubuntu from 12.04 to 14.04, it asked me during the upgrade which setting did I want for PermitRootLogin and when I looked at /etc/ssh/sshd_config after the installation (and after adding my ssh key) it was set on PermitRootLogin yes.

--- update ---

After reading this answer I ran dmesg | grep "EXT4-fs error" to see if I have any issues related to the filesystem / journaling system itself.

It returned many times:

[68241.757233] EXT4-fs error (device vda): htree_dirblock_to_tree:892: inode #533953: block 2108070: comm updatedb.mlocat: bad entry in directory: rec_len is smaller than minimal - offset=0(0), inode=0, rec_len=0, name_len=0

What should I do?

Community
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arthur.sw
  • 113

1 Answers1

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You must setup root password:

sudo passwd

Then restart the ssh service:

sudo service ssh reload

Note: permitting root access especially without password is quite dangerous it makes your system highly vulnerable to external threats.

Ashraf Abusada
  • 534