Please do note, that while giving suggestions or providing instructions be as specific as you can. I am new to this and would probably need the extra explanation until I get a hang of it.
To begin, my Forum Statistics:
We have 300~400 users online at any given time (users i.e including members, bots etc). During peak/high traffic time (three days every week, Thursday - Friday - Saturday) we have a minimum of 800~900 users online, with the highest being 1300. We average 9,000~10,000 visits a day with (currently) an average of 15/16gb bandwidth per day.
Intel(R) Xeon(R) CPU E5-2650 v2 1 Core @ 2.60GHz
20 GB SSD Disk Space
600 GB Bandwidth
1 GB Dedicated Ram
1 GB Burstable Ram (VSwap)
OS: CentOS 6 x86_64
Currently only using the basic cache system mentioned in the XenForo Manual.
So I'd like to hear your suggestions for what I should watch out for/be ready during high traffic, what to monitor etc. in order to get reports for optimizing the server better