coscc.cc.tn.us IN A 198.146.104.18 coscc.cc.tn.us IN MX d229510a.ess.barracudanetworks.com coscc.cc.tn.us IN MX d229510b.ess.barracudanetworks.com coscc.cc.tn.us IN NS coscc.coscc.cc.tn.us coscc.cc.tn.us IN NS dns1.tbr.edu rsccdns1.cc.tn.us IN A 206.23.23.100 rsccdns2.cc.tn.us IN A 206.23.23.101