Hello,
I'll try to address your concerns.
1) Apr 22 04:19:02 vps named[30559]: lame server resolving '63.167.133.166.in-addr.arpa' (in '167.133.166.in-addr.arpa'?): 209.183.48.20#53 I get ALOT OF THESE
Nameserver (named) configured on your server is reporting about badly configured nameservers in messages like this. You can simply ignore them or add the following line into the options section of named.conf to stop logging for them:
logging { category lame-servers { null; };};
Don't forget to restart named after editing the configuration to apply the changes.
Apr 23 01:28:41 vps xinetd[30599]: START: smtp pid=16137 from=117.22.56.122
This message is from xinetd superserver starting smtp server for incoming SMTP connections. It is normal for server running mail services and accepting incoming emails (even just for forwarding them later).
I hope this helps.