第一次接触Nacos，启动时报错（java.net.UnknownHostException: jmenv.tbsite.net）解决方案。
错误信息：
Caused by: java.net.UnknownHostException: jmenv.tbsite.net
at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
at java.net.InetAddress.getAllByName(InetAddress.java:1192)
at java.net.InetAddress.getAllByName(InetAddress.java:1126)
at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45)
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:111)
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107)
at com.alibaba.nacos.common.http.BaseHttpClient.execute(BaseHttpClient.java:45)
at com.alibaba.nacos.common.http.NacosSyncHttpClient.get(NacosSyncHttpClient.java:46)
at com.alibaba.nacos.core.cluster.lookup.AddressServerMemberLookup.syncFromAddressUrl(AddressServerMemberLookup.java:155)
at com.alibaba.nacos.core.cluster.lookup.AddressServerMemberLookup.run(AddressServerMemberLookup.java:101)
... 123 common frames omitted
解决方案：
Nacos默认是集群（cluster）启动，将其设置为单机（standalone）启动则不会报这个错。若需要集群启动则需要进行相关的集群配置。
windows启动：
startup.cmd -m standalone
linux启动：
startup.sh -m standalone
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原文链接：https://blog.csdn.net/qq_25223941/article/details/125309505