Updated. 70+ subnets. Should block popular VPN's and Proxy providers. Feel free to share errors and/or new proxies. Monitor cheat logs for at least 2 weeks after banning above subnets, in case if you find errors.
If you are using silent mod then use map voting feature. No more bother with map rotation configs. I never change sv_master1 or so on... Just leave that to default.
Well I normally don't keep my machine on 24 * 7. It uses more power then what is worth it. I wouldn't advice to run public server from your local PC. Well yeah you could but you need good network peering + connection. Question is are you using this server for your learning and testing purpose or for your clan. If later is the case then rent the server from professional hosting services. If your router supports you can use dynamic DNS. So whenever your IP changes it gets updated by itself. http://dyn.com/all-dns/
You can use the free one available at: http://redirect.dediserverhosting.com/ They have most of the files on there redirect.
set sv_wwwDownload 1
set sv_wwwDlDisconnected 1
set sv_wwwBaseURL "http://redirect.dediserverhosting.com/" // This is the URL where players are directed while running the game
set sv_wwwFallbackURL "http://mygamingtalk.com/" // This is the URL where players are directed to download using external internet browser
Try that in your config and it should work.
What you want to run? Give some more detail info or examples. I understand you are asking for cron but on what specific area you are planning to use it.