One of my sites, there is no binding domain, is a direct access to the IP address, a user's computer can ping the IP address, but 80 cannot access port, our own test, other users (in different cities) to access the IP (ping, Telnet port 80) also is normal, is not this user, doubt 360 make of ghost, but what also didn't look up to the stop, don't understand,

CodePudding user response:

Ping to the user's computer can pass first, and then check the user's computer firewall is limiting the port 80

CodePudding user response:

Firewall problem was found, the user's computer to access other web sites are normal, is unable to access our web site, and other users can visit our website

CodePudding user response:

Who can provide the train of thought, really didn't

CodePudding user response:

Caught from PC, scratching from a web server which there is something wrong with the three-way handshake

CodePudding user response:

Could it be operators to intercept

CodePudding user response:

reference 5 floor Lz__Heng reply:

operators are intercepted

before can also be used to, not suddenly, so we doubt is 360 do

CodePudding user response:

refer to 6th floor sunghj response:

Quote: refer to the fifth floor Lz__Heng reply:

Be operators interceptor

before can also be used to, not suddenly, so didn't doubt is 360 do

360 there is a black reinforcing what proof tool books (or name) in a small tool, can go to have a look

CodePudding user response:

Me too, architecture software on IIS, 30 computers connect to the server at the same time, sometimes there will be 1 ~ 2 PCS of the randomness of the server, even when not on the ping can Telnet port 80 impassability, wait a minute May 20 minutes, is likely to half a day, and good, the building Lord solved