> ls nikolaev.ua. 
[deer.comcent.nikolaev.ua]
 nikolaev.ua.                   server = ns.nk.ukrtel.net              
 nikolaev.ua.                   server = ns.comcentre.nikolaev.ua      
 nikolaev.ua.                   server = ns.ussr.eu.net                
 nikolaev.ua.                   server = ns.spb.su                     
 nikolaev.ua.                   server = deer.comcent.nikolaev.ua      
 nod                            server = ns.nk.ukrtel.net              
 nod                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 news                           195.5.7.3
 comcent                        server = deer.comcent.nikolaev.ua      
 deer.comcent                   193.193.211.2
 comcent                        server = merryer.comcent.nikolaev.ua   
 merryer.comcent                193.193.211.1
 comcent                        server = ns.tm.odessa.ua               
 comcent                        server = ns.lucky.net                  
 comcent                        server = occam.ts.kiev.ua              
 comcent                        server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 nbg                            server = ns.nk.ukrtel.net              
 nbg                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 gopher                         195.5.7.7
 nap                            server = gateway.nap.nikolaev.ua       
 gateway.nap                    193.193.212.1
 nap                            server = deer.comcent.nikolaev.ua      
 deer.comcent                   193.193.211.2
 nap                            server = piper.ts.kiev.ua              
 ns                             195.5.7.2
 ncc                            195.5.7.7
 aval                           server = good.aval.nikolaev.ua         
 good.aval                      195.5.7.75
 aval                           server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 kzn                            server = ns.nk.ukrtel.net              
 kzn                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 relay                          195.5.7.2
 comcentre                      server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 comcentre                      server = ns.nk.ukrtel.net              
 comcentre                      server = occam.ts.kiev.ua              
 comcentre                      server = ns.tm.odessa.ua               
 comcentre                      server = ns.spb.su                     
 comcentre                      server = deer.comcent.nikolaev.ua      
 deer.comcent                   193.193.211.2
 dmn                            server = ns.nk.ukrtel.net              
 dmn                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 ntc                            195.5.7.7
 orion.nektar                   195.5.7.66
 irc                            193.193.211.20
 prm                            server = ns.nk.ukrtel.net              
 prm                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 nts                            195.5.7.7
 bsh                            server = ns.nk.ukrtel.net              
 bsh                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 brt                            server = ns.nk.ukrtel.net              
 brt                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 brv                            server = ns.nk.ukrtel.net              
 brv                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 reg                            195.5.7.7
 brz                            server = ns.nk.ukrtel.net              
 brz                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 voz                            server = ns.nk.ukrtel.net              
 voz                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 och                            server = ns.nk.ukrtel.net              
 och                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 uzh                            server = ns.nk.ukrtel.net              
 uzh                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 mtc                            195.5.7.7
 sng                            server = ns.nk.ukrtel.net              
 sng                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 arb                            server = ns.nk.ukrtel.net              
 arb                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 www                            195.5.7.2
 kvo                            server = ns.nk.ukrtel.net              
 kvo                            server = ns.comcentre.nikolaev.ua      
 ns.comcentre                   193.125.86.4
 registry                       195.5.7.7
 mts                            195.5.7.7
 ftp                            195.5.7.2