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How do I fix the error 'Named Pipes Provider, error 40 - Could not open a connection to' SQL Server'
...g with SERVER/INSTANCENAME when everything is configured correctly, named pipes, user access rights... and suddenly it struck me, it's not a slash, it's a backslash (\).
The horror, the shame...
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MySQL CONCAT returns NULL if any field contain NULL
...ONCAT(COALESCE(`affiliate_name`,''),'-',COALESCE(`model`,''),'-',COALESCE(`ip`,''),'-',COALESCE(`os_type`,''),'-',COALESCE(`os_version`,'')) AS device_name
FROM devices
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Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
...out which username you should use is often lacking from the AMI Image description. But you can find some in AWS EC2 documentation, bullet point 4. :
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AccessingInstancesLinux.html
Use the ssh command to connect to the instance. You'll specify the...
How to detect the physical connected state of a network cable/connector?
...nected state of an RJ45 connector to its socket. Preferably using BASH scripting only.
14 Answers
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how to detect search engine bots with php?
...s user agent with fake name and name it like "Googlebot"? I think checking ip range is more trustworthy!
– Mojtaba Rezaeian
Jul 1 '15 at 6:39
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Difference between TCP and UDP?
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TCP is a connection oriented stream over an IP network. It guarantees that all sent packets will reach the destination in the correct order. This imply the use of acknowledgement packets sent back to the sender, and automatic retransmission, causing additional delays a...
How to create a self-signed certificate with OpenSSL
...lopment.
# DNS.5 = localhost
# DNS.6 = localhost.localdomain
# IP.1 = 127.0.0.1
# IP.2 = ::1
It's important to put DNS name in the SAN and not the CN, because both the IETF and the CA/Browser Forums specify the practice. They also specify that DNS names in the CN are depr...
糯米推全景地图 让竞争对手们如何接招？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...地区推广，毕竟目前还是覆盖部分地区；二，更多的动态实时影像会成为主流，顾客的随时查看功能会加强；三，除了餐饮，更多的行业将会被展现到全景地图中。”这样的话，O2O的未来会很美妙。
今年6月，李彦宏宣布投入200...
Forward host port to docker container
...ter to all the containers. Assuming you are on recent ubuntu, you can run
ip addr
This will give you a list of network adapters, one of which will look something like
3: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 22:23:6b:28:6b:e0 brd ff:ff:ff:ff:...
iPhone Data Usage Tracking/Monitoring
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The thing is that pdp_ip0 is one of interfaces, all pdpXXX are WWAN interfaces dedicated to different functions, voicemail, general networking interface.
I read in Apple forum that :
The OS does not keep network statistics on a process-by-process...