WWW.RTSAK.COM - sys21.kr
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sys21.kr checked at 2025-09-21T13:26:58.874Z 1035ms 62/62/62 100% R:22sys21.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 resolves to a single IP address: 112.216.19.68.
Other host names, for instance mail.sys21.kr, share IP numbers with sys21.kr.
sys21.kr's delegation uses two name servers, ns1.sys21.kr and ns.sys21.kr.
sys21.kr shares the same name server setup as other domains, for instance swmetal.net.
Hosts with two IPs:
ns1.sys21.kr points to 192.168.0.5 and 192.168.0.7.
Hosts with one IP:
ns.sys21.kr points to 112.216.19.69.
sys21.kr is handled by a single mail server, mail.sys21.kr.
mail.sys21.kr points to a single IP: 112.216.19.68.
dbq