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查询中国联通各省市公共DNS服务器IP地址及位置信息，优化网络配置
No data available. Please configure DNS IP data in tool settings.
RIPEMD Hash Generator
Generate RIPEMD-128, RIPEMD-160, RIPEMD-256, and RIPEMD-320 hashes online. Supports text, Hex, and Base64 inputs.
IPv4 / IPv6 Address Converter
A two-way IPv4 and IPv6 address converter for network configuration, debugging, and format validation.
IP to Number Converter
Convert IP addresses to decimal integers and vice versa. Supports both IPv4 and IPv6 formats. Ideal for development, debugging, and network analysis.
IPv6 Address Compressor
Compress IPv6 addresses to their shortest RFC-compliant format by removing redundant zeros. Perfect for network configuration and address management.
RIPEMD Hash Generator
Generate RIPEMD-128, RIPEMD-160, RIPEMD-256, and RIPEMD-320 hashes online. Supports text, Hex, and Base64 inputs.
IPv4 / IPv6 Address Converter
A two-way IPv4 and IPv6 address converter for network configuration, debugging, and format validation.
IP to Number Converter
Convert IP addresses to decimal integers and vice versa. Supports both IPv4 and IPv6 formats. Ideal for development, debugging, and network analysis.
IPv6 Address Compressor
Compress IPv6 addresses to their shortest RFC-compliant format by removing redundant zeros. Perfect for network configuration and address management.
Random IP Address Generator
Generate IPv4 and IPv6 addresses on demand. Supports specific public/private networks and custom CIDR ranges. Ideal for testing, development, and learning.
当您需要优化网络访问速度或解决特定地区的DNS解析问题时，手动查找正确的联通DNS服务器IP往往耗时费力。本工具收录了中国联通在全国范围内部署的公共DNS服务器IP地址及其精确地理位置信息（精确到市级），每个IP记录包含起始IP、结束IP和服务位置三个关键字段，帮助技术人员快速定位最适合的DNS服务器。
部分IP可能因网络调整而变更，遇到解析失败时请尝试同地区其他IP。修改DNS设置前建议备份原始配置，企业用户请先在内网测试。
对于网络延迟敏感的应用（如视频会议），建议同时测试3-5个同区域DNS的响应速度。典型配置示例：北京用户可依次尝试202.106.0.20、202.106.46.151和202.106.196.212-217段中的任意IP。
