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com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
...achable at all. This can have one or more of the following causes:
IP address or hostname in JDBC URL is wrong.
Hostname in JDBC URL is not recognized by local DNS server.
Port number is missing or wrong in JDBC URL.
DB server is down.
DB server doesn't accept TCP/IP connections.
D...
What can be the reasons of connection refused errors?
...king for firewalls and that the port is open, use telnet to connect to the ip/port to test connectivity. This removes any potential issues from your application.
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Connect to a locally built Jekyll Server using mobile devices in the LAN
...e command line.
That will make Jekyll's HTTP server bind to all available IPs, rather than just to localhost.
You can also add this to your _config.yml with host: 0.0.0.0. GitHub will simply ignore this when you push, so it's safe to use if you don't mind having your work openly accessible on your...
HTTP test server accepting GET/POST requests
...ttps://httpbin.org/anything Returns most of the below.
https://httpbin.org/ip Returns Origin IP.
https://httpbin.org/user-agent Returns user-agent.
https://httpbin.org/headers Returns header dict.
https://httpbin.org/get Returns GET data.
https://httpbin.org/post Returns POST data.
https://httpbin.o...
How do I simulate a low bandwidth, high latency environment?
... instructions, you're enabling a firewall. For just simulating a different IP connection, you could (for example) do the following:
Create a file /etc/rc.firewall.56k which contains the following:
ipfw add pipe 1 ip from any to any out
ipfw add pipe 2 ip from any to any in
ipfw pipe 1 config b...
Get hostname of current request in node.js Express
... be no way to detect the actual host without a request, you could have multiple hosts configured, but this is what I was looking for!
– Jesse
Sep 22 '11 at 0:38
2
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How do I copy a folder from remote to local using scp? [closed]
...ound: the -C flag adds compression and the -c flag lets you pass in other cipher types for better performance, like scp -c blowfish a@b:something . as seen in dimuthu's answer
– Automatico
Jun 26 '14 at 20:48
...
Addressing localhost from a VirtualBox virtual machine [closed]
....agaric.com/localhost-from-virtualbox-xp-install-ubuntu
It suggests using IP: http://10.0.2.2, and it worked for me.
So, I edited the hosts file, C:\windows\system32\drivers\etc\hosts, and added this entry:
10.0.2.2 outer
If you're testing on IE8, remember to put http:// in the address bar. ...
一个科技公司只是碰巧卖起了披萨？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...推出Translator App，消费者用手机话筒对准自己的胃，App“扫描”后，就可以订制一张“适合你胃”的披萨，下单后可直接跳转订餐。
2015年3月，达美乐支持智能手表点餐，用户可以通过Pebble或Android Wear智能手表，在智能手机内设...
How to configure heroku application DNS to Godaddy Domain?
...h Heroku, and it worked perfectly. Very clear and well explained.
Note: Skip the part about CNAME yourdomain.com. (note the .) and the heroku addons:add "custom domains"
http://blog.heroku.com/archives/2009/10/7/heroku_casts_setting_up_custom_domains/
To summarize the video:
1) on GoDaddy and ...