Hello
I can write a filter for logs coming from different source -IPs.
I am a senior system admin with 10+ years of experience. I have managed more than 300 linux and windows servers.
I have experience with such technologies as Virtuozzo, different types of virtualization (OpenVZ, KVM, XEN), different distributives of OS Linux / OS Unix / OS MS Windows Server systems, VPN/DNS/IPTables/Firewalls/web servers/mail servers configuration and tuning etc.