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Can TCP and UDP sockets use the same port?
First of all, is there any problem with using both UDP and TCP on the same server?
2 Answers
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普通码农和CTO之间的差距，就是这7点了 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...先要自己把它的每个知识点搞清楚。比如我们可能对HTTP协议并不陌生，但是真的要讲给别人听怎么讲？HTTP协议和TCP协议什么关系？HTTP协议有那些支持的方法？什么是无状态？为什么设计成无状态？Session和Cookie是什么关系、什...
Redis - Connect to Remote Server
... Action From
-- ------ ----
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6379/tcp ALLOW Anywhere
6379/tcp (v6) ALLOW Anywhere (v6)
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# To open the port
$ sudo ufw allow 6379/tcp
Restart Redis service
Do not forget to restart the Redis service for changes...
How to get the client IP address in PHP [duplicate]
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Note: REMOTE_ADDR might not contain the real IP of the TCP connection. This entirely depends on your SAPI. Ensure that your SAPI is properly configured such that $_SERVER['REMOTE_ADDR'] actually returns the IP of the TCP connection. Failing that might give rise to some serious vu...
Solving a “communications link failure” with JDBC and MySQL [duplicate]
...ptables temporarily on linux. If iptables are misconfigured they may allow tcp packets to be sent to mysql port, but block tcp packets from coming back on the same connection.
# Redhat enterprise and CentOS
systemctl stop iptables.service
# Other linux distros
service iptables stop
Stop anti-viru...
How to allow remote connection to mysql
...able rule to allow connections on the port:
iptables -A INPUT -i eth0 -p tcp -m tcp --dport 3306 -j ACCEPT
Would not recommend this for production environment, but if your iptables are not configured properly, adding the rules might not still solve the issue. In that case following should be don...
Java JDBC - How to connect to Oracle using Service Name instead of SID
... below:
jdbc:oracle:thin:@(DESCRIPTION =(ADDRESS_LIST =(ADDRESS =(PROTOCOL=TCP)(HOST=blah.example.com)(PORT=1521)))(CONNECT_DATA=(SID=BLAHSID)(GLOBAL_NAME=BLAHSID.WORLD)(SERVER=DEDICATED)))
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Lost connection to MySQL server at 'reading initial communication packet', system error: 0
...o I need to allow port 3306 in iptables:
>iptables -A INPUT -i eth0 -p tcp -m tcp --dport 3306 -j ACCEPT
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How to write a scalable Tcp/Ip based server
...the design phase of writing a new Windows Service application that accepts TCP/IP connections for long running connections (i.e. this is not like HTTP where there are many short connections, but rather a client connects and stays connected for hours or days or even weeks).
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Possible reasons for timeout when trying to access EC2 instance
...in the port range, your local IP/32 in the source field, and leave 'custom tcp rule' in the dropdown.
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