I'm a new sysadmin in the making, have learned that I need to have /tmp and /home directories on separate partitions in order to prevent possibilities of privilege escalation through hard links based attack. Unfortunately my vps host doesn't allow partitioning at all! With that, I'm left with two options...
1) either abandon the host, 2) Ask the experts if this is a serious issue, and if it, then if there is any other way through which we can prevent hard links based attacks!
Are there any further disadvantages of not being able to create partitions in future course of vps management journey?
Looking forward for guidance in this matter. Thanks for your help.