Topic

ancientwisdom

A collection of 4 issues

chmod and the capital X

This is one very, very, very interesting piece of ancient wisdom. Suppose you need to change permissions for some directories. Maybe the permissions are too strict, e.g. something like 700 for directories and 600 for files, and you need to give access to some other group and not just

Unfreezing your desktop: when Compiz goes wrong

A desktop freeze is something that's not so rare nowadays - that's not good, but we shouldn't get desperate about that. I like Compiz with Unity Desktop on my Ubuntu Trusty very much; I feel it's a step forward compared to traditional desktops. The only major nuisance I had on

Don't give a shell to system users - use su

I seem very ancientwisdom-oriented these days. Sometimes you've got a system user on your linux server that's used to run a specific service; it's a good practice to employ those users to achieve privilege separation, since it limits the impact of many security breaches. It's security 101, really. If you've

SSH hostnames configuration and shortcuts

This is another old trick, but I like to tell the world about such amenities. I often find people writing command lines such as: ssh arcane-system-user@someextremelylong.andimpossibiletotype.anderrorprone.hostname.com or, worse ssh idliketorememberwhichuser@10.20.30.40 or maybe it was ssh someuserimashamedof@1.2.3.4 yes,