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Wi-Fi 是什么的缩写 - 创意 - 清泛网 - 专注C/C++及内核技术
...有被发明出来。当时的大背景是，IEEE 定义了一系列无线网络通信的标准，也就是我们常见到的 802.11 系列，但却没有规定如何去测试产品是否符合标准，导致 802.11 产品间的互通频频出现问题，而联盟的成立就是为了填补这一空...
Where can I get a list of Ansible pre-defined variables?
...les that we can use in playbooks and template files. For example, the host ip address is ansible_eth0.ipv4.address. Googleing and searching the docs I cound't find a list of all available variables. Would someone list them for me?
...
What is the difference between HTTP_HOST and SERVER_NAME in PHP?
...rver attempts to deduce the hostname by performing a reverse lookup on the IP address. If no port is specified in the ServerName, then the server will use the port from the incoming request. For optimal reliability and predictability, you should specify an explicit hostname and port using the Server...
Understanding Apache's access log
...r}i\" \"%{User-agent}i\"" combined
%h is the remote host (ie the client IP)
%l is the identity of the user determined by identd (not usually used since not reliable)
%u is the user name determined by HTTP authentication
%t is the time the request was received.
%r is the request line from the clie...
Check if two linked lists merge. If so, where?
...fy this). Reason is both pointers have to travel same distances head1-> IP + head2->IP before reaching IP again. So by the time it reaches IP, both pointers will be equal and we have the merging point.
– adev
Jul 28 '17 at 5:37
...
支撑Github的开源技术 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...dis的后台作业控制系统，提供可视化的界面，可以方便的监控后台作业的运行状态和监控情况。
另外，Github还发布了“支撑Github Windows客户端的开源项目”和“支撑Github Mac客户端的开源项目”两个Showcase。
Github 开源技术
How can I connect to a Tor hidden service using cURL in PHP?
...evel domain specifically for use by Tor and such domains by design have no IP addresses to map to.
Using CURLPROXY_SOCKS5 will direct the cURL command to send its traffic to the proxy, but will not do the same for domain name resolution. The DNS requests, which are emitted before cURL attempts to e...
技术人员如何创业《三》- 合伙人的分工 - 资讯 - 清泛网 - 专注C/C++及内核技术
...boss指导方向、行政打点生活和后勤、技术作为先锋开发软件。这里就有个问题了，很多时候一个想法并不能变成一个产品。比如，我要研发一个记录笔记的软件，可以支持本地和在线，还支持交流分享。一句话需求如何去实现...
How do I delete all messages from a single queue using the CLI?
...ate but for others reference, this can be done with pika
import pika
host_ip = #host ip
channel = pika.BlockingConnection(pika.ConnectionParameters(host_ip,
5672,
"/",
credentials=pika.Pl...
MongoDB与内存 - 大数据 & AI - 清泛网 - 专注IT技能提升
...：
shell> sysctl vm.drop_caches=1
平时可以通过mongo命令行来监控MongoDB的内存使用情况，如下所示：
mongo> db.serverStatus().mem:
{
"resident" : 22346,
"virtual" : 1938524,
"mapped" : 962283
}
还可以通过mongostat命令来监控MongoDB的内存使...