Your applications are all built differently, but they all need to perform. NeoLoad simplifies and scales performance testing for everything, from APIs and microservices, to end-to-end application testing through innovative protocol and browser-based capabilities.
MoBlock is a linux console application that blocks connections from/to hosts listed in a file in peerguardian format (guarding.p2p and p2p.p2b) or ipfilter.dat files. It uses iptables libnetfilter_queue userspace library and NFQUEUE kernel module.
Balancer is an userspace NFQUEUE filter desgned to load-balance traffic across multiple uplink ISP connections. It works on kernels 2.6.14 and above. The purpose of the filter is to keep a session always on the same ISP link where it started.
Bors is a theoretical project that would use DNS blacklists like those used for spam but on a nfqueue level. It uses ideas from mblock/nfblockd but instead of a local list it uses DNS blacklists to lookup if an IP is blocked and what category it belongs.