Category Archives: Security

SFTP only chroot users with OpenSSH in Debian

By Frands | Published: December 28, 2010

From OpenSSH version 4.9 and up it is now possible to create chrooted SFTP-only users with OpenSSH without the need for any add-ons. In my example i want all users within the “sftp” group to hit /srv/sftponly.  This can be done on userlevel or on group level. I will be using groups. At first, use […]

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Do you make backup? – If you do, is your backup strategy safe?

By Frands | Published: December 11, 2010

I think server backups here. As a server administrator, there are a lot of concerns and one of the bigger ones is security. I know a whole lot of server administrators, and when I did a Q&A to know about their backups I was astonished to find out that more than 30% of them did […]

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Maximizing Password Security

By Frands | Published: August 23, 2009

Amongst several years I have been using very complex passwords, however they could somewhat be linked to each other. I memorized around 15 different passwords with an average length of 15 chars. All of them had a complexity level which was rather high, (at least 3 of these: uppercase letters, lowercase letters, numbers, special characters, […]

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