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通过 ulimit 改善系统性能 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...rver 程序来说，它会为多个 client 程序请求创建多个 socket 端口给与响应。如果恰好有大量的 client 同时向 server 发出请求，那么此时 server 就会需要创建大量的 socket 连接。但在一个系统当中，往往需要限制单个 server 程序所能使...
ros 基本调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...1.简介
2.可用的调试方法
2.1通过文本消息调试
2.1.1串行端口
2.1.1.1虚拟机
2.1.1.2真实电脑——物理串行线
2.1.1.3基于freebsd的串行终端
2.1.2将调试文字输出到文件
2.1.3将调试文字输出到屏幕
2.1.4修改波特率（数据传输速率）
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Getting Chrome to accept self-signed localhost certificate
...", then also find it in the list, right click it, expand "> Trust", and select "Always"
Add extendedKeyUsage=serverAuth,clientAuth below basicConstraints=CA:FALSE, and make sure you set the "CommonName" to the same as $NAME when it's asking for setup
You can check your work
openssl verify -CAfil...
App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 · App Inventor 2 中文网
...明书，不要弄错以免烧坏硬件）
一般来说，需要接线的端口有以下4个，无论哪款蓝牙硬件，也无论哪种其他硬件，这4个端口都是基本的存在：VCC（正极）、GND（接地负极）、TX、RX 交叉接线，参考接线如图：
2、串口工具测...
Enable remote connections for SQL Server Express 2012
...ar, so good, and entirely expected. But then:
Right-click on TCP/IP and select Properties.
Verify that, under IP2, the IP Address is set to the computer's IP address on the local subnet.
Scroll down to IPAll.
Make sure that TCP Dynamic Ports is blank. (Mine was set to some 5-digit port number.)
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What platforms have something other than 8-bit char?
Every now and then, someone on SO points out that char (aka 'byte') isn't necessarily 8 bits .
12 Answers
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Run/install/debug Android applications over Wi-Fi?
...> Wi-Fi ` and then long press the wifi which you are connected to. Then select Modify network config check on Show Advance Options and the scroll to `IP address
– viper
Jan 17 '17 at 7:50
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How can I use a DLL file from Python?
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Next;
Application type -> DLL;
Additional options -> Empty project (select);
Additional options -> Precompiled header (unselect);
Project -> Properties -> Configuration Manager -> Active solution platform: x64;
Project -> Properties -> Configuration Manager -> Active solu...
linux svn搭建配置及svn命令详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...svnserve -d -r /opt/svn/repos/ --listen-host 127.0.0.1 （注：不指定端口号，默认为3690）
1、安装
[root@www ~]# yum install subversion
[root@www ~]# svn -v 判断是否安装成功
svnserve, version 1.6.11 (r934486) 出现类型提示，说明安...
What is the difference between 127.0.0.1 and localhost
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/etc/nsswitch.conf selects if hosts or DNS is used first for a host lookup, if nss is running.
– Mark Lakata
Feb 14 '19 at 20:16
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