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Why am I getting “Cannot Connect to Server - A network-related or instance-specific error”?
... ascertain if your server is included in your network list.
Enable TCP/IP in SQL Server Configuration
When two or more SQL Servers are connected across network they do all communication using TCP/IP. The default port of SQL Server installation is 1433. This port can be changed through SQL S...
两大桌面系统之战：Yosemite vs Windows 10 - 操作系统(内核) - 清泛网 - ...
...ive Tile 这个概念。开始菜单中有一半应用是以传统的方式显示，还有一半是Live Tiles。比如News 磁贴就会滚动显示头条新闻，日历和邮件应用也以磁贴方式显示。
通知
OS X Yosemite 中通知功能得到大幅提升，在通知区域...
Vagrant reverse port forwarding?
...ing accounting for vagrant's potentially differente config if you have multiple vagrant setup: vagrant ssh-config | ssh -F /dev/stdin $BOX -R $PORT_VM:localhost:$PORT -N
– ibizaman
Nov 11 '15 at 10:36
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Connection to SQL Server Works Sometimes
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It turned out that TCP/IP was enabled for the IPv4 address, but not for the IPv6 address, of THESERVER.
Apparently some connection attempts ended up using IPv4 and others used IPv6.
Enabling TCP/IP for both IP versions resolved the issue.
The fa...
How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...erstand the basics of how ports work. However, what I don't get is how multiple clients can simultaneously connect to say port 80. I know each client has a unique (for their machine) port. Does the server reply back from an available port to the client, and simply state the reply came from 80? How d...
What is the best Distributed Brute Force countermeasure?
... whitelist, and then - and here's the trick - not blocking non-whitelisted IPs, just throttling them to hell and back.
Note that this measure is only meant to thwart this very specific type of attack. In practice, of course, it would work in combination with other best-practices approaches to au...
ping response “Request timed out.” vs “Destination Host unreachable”
When I ping an IP address, what is the difference between Request timed out and Destination host unreachable returned from the command?
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grant remote access of MySQL database from any IP address
...cnf
Comment out following lines.
#bind-address = 127.0.0.1
#skip-networking
If you do not find skip-networking line, add it and comment out it.
Restart mysql server.
~ /etc/init.d/mysql restart
Change GRANT privilege
You may be surprised to see even after above change you are not...
Can't connect to localhost on SQL Server Express 2012 / 2016
...not, start it.
You need to make sure that SQL Server is allowed to use TCP/IP or named pipes. You can turn these on by opening the SQL Server Configuration Manager in Start > Programs > Microsoft SQL Server 2012 > Configuration Tools (or SQL Server Configuration Manager), and make sure that...
Find the IP address of the client in an SSH session
I have a script that is to be run by a person that logs in to the server with SSH .
19 Answers
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