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Android系统级推送原理详解：为什么App被杀也能收到通知？ - App应用开发 -...
...机后，系统会自动建立并维护一条到推送服务器的持久 TCP 长连接：
- Google Android：Google Play Services 进程与 mtalk.google.com:5228 保持 TCP 长连接
- 心跳保活：每隔几分钟发一次心跳包
- 系统级进程：不被 Doze 省电模式杀掉
- 所有 ...
What port is a given program using? [closed]
...need more functionality than netstat provides, vasac suggests that you try TCPView.
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Redis - Connect to Remote Server
... Action From
-- ------ ----
...
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...
Find the host name and port using PSQL commands
...stat -plunt |grep postmaster
and you will see something similar as this
tcp 0 0 127.0.0.1:5432 0.0.0.0:* LISTEN 140/postgres
tcp6 0 0 ::1:5432 :::* LISTEN 140/postgres
in this case, port number is 5432 whi...
Linux: is there a read or recv from socket with timeout?
...w, select, pselect, poll, has a timeout field, but using of them disables "tcp fast-path" in tcp reno stack.
5 Answers
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MySQL Workbench: How to keep the connection alive
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If you are using a "Standard TCP/IP over SSH" type of connection, under "Preferences"->"Others" there is "SSH KeepAlive" field. It took me quite a while to find it :(
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A transport-level error has occurred when receiving results from the server [closed]
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Try the following command on the command prompt:
netsh interface tcp set global autotuning=disabled
This turns off the auto scaling abilities of the network stack
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CruiseControl.Net 进行持续化集成 - IT产品资讯 - 清泛网 - 专注C/C++及内核技术
...Net，打开CruiseControl.NET Config配置文件。
CC.Net支持同时监控和集成多个解决方案，每个解决方案在CC.Net中被称为1个Project.,在CruiseControl.NET Config中1个Project被一个元素来描述。当然我们还要为每个Project指定名称和工作目录和日...
Build a simple HTTP server in C [closed]
...vers
What you have to implement in incremental steps is:
Get your basic TCP sockets layer running (listen on port/ports, accept client connections and send/receive data).
Implement a buffered reader so that you can read requests one line (delimited by CRLF) at a time.
Read the very first line. Pa...
Can (domain name) subdomains have an underscore “_” in it?
...lly.
Domains with underscores are very common in the wild. Check _jabber._tcp.gmail.com or _sip._udp.apnic.net.
Other RFC mentioned here deal with different things. The original
question was for domain names. If the question is for host
names (or for URLs, which include a host name), then this is
...