iP or domain name lookup

client1.duduniu.cn Server iP：

Current resolution：

domain resolution record：

2022-03-20-----2022-03-20 45.33.23.183

2022-03-09-----2022-03-09 45.56.79.23

2019-10-06-----2019-10-06 79.124.78.120

2018-03-16-----2018-03-16 123.125.115.139

2018-03-16-----2018-03-16 180.149.144.28

2017-03-10-----2017-11-11 111.202.114.29

2017-11-11-----2017-11-11 106.120.159.149

2017-11-11-----2017-11-11 123.125.112.229

2017-11-11-----2017-11-11 123.125.112.228

2017-11-11-----2017-11-11 111.13.101.137

2017-03-10-----2017-03-10 111.13.100.104

2017-03-10-----2017-03-10 111.202.114.30

2017-03-10-----2017-03-10 220.181.7.171

2017-03-10-----2017-03-10 220.181.7.172