MXLIST.NET - sys21.kr
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sys21.kr checked at 2025-10-22T01:24:20.668Z 448ms 62/62/62 100% R:19sys21.kr
| MX | mail.sys21.kr | ||||||
| A | 112.216.19.68🇰🇷 LG Uplus | ||||||
| PTR | mail.sys21.kr | ||||||
| PTR | ns1.sys21.kr | ||||||
| NS | ns1.sys21.kr | ||||||
| A | 192.168.0.5 | ||||||
| A | 192.168.0.7 | ||||||
| NS | ns.sys21.kr | ||||||
| A | 112.216.19.69🇰🇷 LG Uplus | ||||||
| PTR | ns.sys21.kr | ||||||
| A | 112.216.19.68🇰🇷 LG Uplus | ||||||
| PTR | mail.sys21.kr | ||||||
| PTR | ns1.sys21.kr | ||||||
kr
| NS | b.dns.kr | ||||||
| NS | c.dns.kr | ||||||
| NS | d.dns.kr | ||||||
| NS | e.dns.kr | ||||||
| NS | f.dns.kr | ||||||
| NS | g.dns.kr | ||||||
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AI analysis
sys21.kr is a parent of mail.sys21.kr, ns.sys21.kr and ns1.sys21.kr.
sys21.kr points to a single IP number: 112.216.19.68.
Other host names, for instance mail.sys21.kr, share IP numbers with sys21.kr.
sys21.kr is delegated to two name servers: ns1.sys21.kr and ns.sys21.kr.
sys21.kr uses the same name server setup as other domains, including swmetal.net.
Host names with two IP numbers: ns1.sys21.kr points to 192.168.0.5 and 192.168.0.7.
Host names with one IP number: ns.sys21.kr points to 112.216.19.69.
sys21.kr is handled by a single mail server, mail.sys21.kr.
Host name mail.sys21.kr points to IP address 112.216.19.68.
dbq