Selective connection to network

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http://forums.fedoraforum.org – After ATT worked on the lines one night last week (we are on a 1.5 meg DHL line), my new fc16 installation (2 months old) wold not connect to various IP addresses. First, CLAWS email wolud not connect to <my server>:110, and then I discovered that Firefox would only connect to the big web sites, Googl, Yahoo, and the like. Anything lesser and even the links within the large sites went unrecognized. After poking around for a while, I updated the kernel and SELinus, and reinstalled NetworkManager. No change. Then I found that arp-ethers service was not running and enabled that by creati (HowTos)