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* testing on LAN (local network, subnet scope): Is service alive? The different servers between LAN or with the same ip class (ex: 1.2.3.*) may not have the firewall limit. | * testing on LAN (local network, subnet scope): Is service alive? The different servers between LAN or with the same ip class (ex: 1.2.3.*) may not have the firewall limit. | ||
** connect to localhost ex: {{kbd | key= telnet 172.18.0.1 23}} (1) IP start with 172.18... is [http://www.itcom.itd.umich.edu/backbone/umnet/privateIP.html Private IP Network Numbers] (2) where 23 is the port number where the service running | ** connect to localhost ex: {{kbd | key= telnet 172.18.0.1 23}} (1) IP start with 172.18... is [http://www.itcom.itd.umich.edu/backbone/umnet/privateIP.html Private IP Network Numbers] (2) where 23 is the port number where the service running | ||
*** | *** If the local service is web server, you can also try to connect the internal ip e.g. {{kbd | key = <nowiki>lynx http://172.18.0.1</nowiki>}} for {{Linux}} | ||
* double [[Testing#check_the_server.2Fservice_logs | check the server/service logs]] | * double [[Testing#check_the_server.2Fservice_logs | check the server/service logs]] | ||