问题
I can access sites when using browser, but when inside a Mac application I always get "Operation Timed Out" over VPN.
Is this a companies firewall issue or my local DNS settings issue? I have been going back and forth with our IT admin team on this. With the same firewall roles Windows users are able to run things smoothly.
Few Examples..
Mac Terminal
himalay$ git clone https://github.com/spring-guides/gs-consuming-rest.git
Cloning into 'gs-consuming-rest'...
fatal: unable to access 'https://github.com/spring-guides/gs-consuming-rest.git/': Failed to connect to github.com port 443: Operation timed out
IDE/IntelliJ/STS
Caused by: org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://gturnquist-quoters.cfapps.io/api/random":Operation timed out; nested exception is java.net.ConnectException: Operation timed out
at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:580)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:530)
at sun.net.www.http.HttpClient.New(HttpClient.java:308)
at org.springframework.web.client.RestTemplate.getForObject(RestTemplate.java:237)
at sun.net.www.http.HttpClient.New(HttpClient.java:326)
at hello.Application.run(Application.java:22)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1168)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1104)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:998)
at org.springframework.boot.SpringApplication.runCommandLineRunners(SpringApplication.java:672)
... 10 common frames omitted
Caused by: java.net.ConnectException: Operation timed out
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:932)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at org.springframework.http.client.SimpleBufferingClientHttpRequest.executeInternal(SimpleBufferingClientHttpRequest.java:81)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345)
at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:53)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:569)
... 14 more
at java.net.Socket.connect(Socket.java:538)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
at sun.net.www.http.HttpClient.New(HttpClient.java:308)
at sun.net.www.http.HttpClient.New(HttpClient.java:326)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1168)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1104)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:998)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:932)
at org.springframework.http.client.SimpleBufferingClientHttpRequest.executeInternal(SimpleBufferingClientHttpRequest.java:81)
at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48)
at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:53)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:569)
... 14 common frames omitted
来源：https://stackoverflow.com/questions/31408529/mac-access-issues-over-vpn