The easiest way to swap between keymaps and thus temporarily set keys to different language by use of loadkeys command. If the loadkeys command is unavailable install kbd package: # yum install kbd As for an example the following linux command will t…
今天为客户的centos服务器安装安全狗时提示Need system command 'locate' to install safedog for linux.Installation aborted!这个应该是缺少了什么组件,查找了相关资料解决了问题,下面随ytkah一起来看看如何操作的吧 这个问题是缺少搜索命令组件,用下面命令进行安装 yum -y install mlocate 再运行安装安全狗,但还提示Need system command 'lspci' to install saf…
Most of the Android user are using their Android phone just for calls, SMS, browsing and basic apps, But form the development prospective, we should know about  Android internal structure. Android uses several partitions (like boot, system, recovery,…
1.打开设置,打开“Language Support”. 2.如果列表中没有你的语言,点击“Install/Remove Language”,下拉选择你的语言,点击“Apply Changes”. 3.应用成功后,回到语言列表,把你的语言拖到第一(如:汉语(中国)),点击“Apply System-wide”.. 4.地区同样选择 5.最后注销.…
1. select locales: 2. set language: sudo localectl set-locale LANG=zh_CN.utf8 sudo localectl set-locale LANGUAGE=zh_CN.utf8 sudo localectl set-locale LC_ALL=zh_CN.utf8 3. sudo reboot ----------------------------------------------- centos默认已经选择了很多loca…
目录 . sys_call_table:系统调用表 . 内核符号导出表:Kernel-Symbol-Table . Linux 32bit.64bit环境下系统调用入口的异同 . Linux 32bit.64bit环境下sys_call_table replace hook 1. sys_call_table:系统调用表 0x1: sys_call_table简介 sys_call_table在Linux内核中是在Linux内核中的一段连续内存的数组,数组中的每个元素保存着对应的系统调用处理函数…
一开始报这个错误:Unable to load shared library 'libdl' 找到libdl安装位置是/usr/lib64: #locate libdl /usr/lib64/libdl-2.17.so /usr/lib64/libdl.so.2 创建连接: #cd /usr/lib64 #ln -s libdl-2.17.so libdl.so 现在又报这个错误:Unable to load DLL 'libgdiplus' yum install libgdiplus-dev…
转自:http://www.cnblogs.com/LittleHann/p/4127096.html 目录 1. sys_call_table:系统调用表 2. 内核符号导出表:Kernel-Symbol-Table 3. Linux 32bit.64bit环境下系统调用入口的异同 4. Linux 32bit.64bit环境下sys_call_table replace hook 1. sys_call_table:系统调用表 0x1: sys_call_table简介 sys_call_t…
To change Speed and Duplex of an ethernet card, we can use ethtool - a Linux utility for Displaying or Changing ethernet card settings.   1. Install ethtool You can install ethtool by typing one of the following commands, depending upon your Linux di…
Blue : User Space 128TBRed : Kernel Space 512MBThe rest of the address space goes to various parts of the system, along with a few unusable holes. ----------- <previous description obsolete, deleted> Virtual memory map with 4 level page tables: 0000…
The system localeare used to control the language setting of system services and the UI before the user logs in. How Do I change the default system locale in CentOS 7 linux system? How to check the current locate setting under centos 7 or RHEL 7 ? Ho…
Introduction The system locale specifies the language settings of system services and user interfaces. The keyboard layout settings control the layout used on the text console and graphical user interfaces. These settings can be made by modifying the…
Today i installed the CoLinux with Ubuntu package, but the default locale setting of the system is German, especially the keyboard is different from the U.S. keyboard. I tried many times to map some special symbols, e.g. symbol '-' is mapped to key '…
File: winforms\Managed\System\WinForms\DataGridView.cs Project: ndp\fx\src\System.Windows.Forms.csproj (System.Windows.Forms) //------------------------------------------------------------------------------ // <copyright file="DataGridView.cs"…
iOS Programming Introduction to Auto Layout   自动布局 A single application that runs natively on both the iPad and the iPhone is called a universal application. 一个原生的能运行在iPad 和iPhone 的应用叫做universal application  Then select the Homepwner target in the pr…
虽然HoloLens支持很多种输入方式,包括蓝牙键盘在内.但是大部分应用还是不能断定用户有物理键盘可以输入,所以虚拟键盘输入还是必须要提供的. Unity提供了一个TouchScreenKeyboard类用于在没有物理键盘时接受虚拟键盘的输入. HoloLens system keyboard behavior in Unity 在Unity中HoloLens系统键盘的做法 HoloLens上 TouchScreenKeyboard 使用的就是系统虚拟键盘.系统键盘不能出现在立体视图的顶部,所以…
转载:https://rmohan.com/?p=4605 Change the default MySQL data directory with SELinux enabled This is a short article that explains how you change the default MySQL data directory and adjust SELinux to account for the changes. The article assumes that y…
问题: 制作镜像的时候报错 devmapper: Thin Pool has 162394 free data blocks which is less than minimum required 163840 free data blocks. Create more free space in thin pool or use dm.min_free_space option to change behavior 解决方案: 运行下面三个命令: // 注意,以下三个命令执行时可能出错是正常的…
Android devices have a couple of partitions to store different data. The common ones are the recovery, boot, system, data and cache partitions. Almost every device has it’s own unique layout even though they come from the same manufacturer. I have se…
#region 程序集 System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 // C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Windows.Forms.dll #endregion using System.Collections; using System.ComponentModel; using Syst…
timedatectl --help 的执行结果如下: timedatectl [OPTIONS...] COMMAND ... Query or change system time and date settings. -h --help Show this help message --version Show package version --no-pager Do not pipe output into a pager --no-ask-password Do not prompt…
FTP 和 Telnet 正是核心联网应用程序的两个示例.为 System SSL 编程接口编码的供应商应用程序可以通过更改代码来利用这些新支持. 这是安全套接层 (SSL) 协议的最新版本,也是最为出色的一个版本.人们普遍认为,出于多种技术原因,这个版本比之前的所有版本都要更加安全.美国政府推荐将 TLSv1.2 作为惟一使用的 SSL 协议.大多数应用程序都需要经历一个过渡阶段,并且需要同时支持 TLSv1.2 和旧版本协议(而非直接全盘取代).本文介绍的新支持允许安全性管理员限制各应用程序…
密码 conn / as sysdba alter user system identified by Abcd1234; manual script first -->manual_script_before_install.sql -- must connect as sysdba to execute the following script -- this manual script is to minimize the configuration change on the Oracl…
iOS Programming  Auto Layout: Programmatic Constraints  1.  However, if your views are created in code, then you will need to constrain them programmatically. 如果你的view是由代码创建的,那么你需要用编程限制它了. To have a view to work with, you are going to recreate the im…
How to change hostname on Debian 10 Linux last updated July 13, 2019 in CategoriesDebian / Ubuntu, Linux How do I change the hostname of a Debian Linux 10 “Buster” operating system permanently using the command line tools? You can use the hostnamectl…
用FileZilla连接ftp出现错误,500 OOPS: cannot change directory:/home/ftp 原因是CentOS系统安装了SELinux,因为默认下是没有开启FTP的支持,所以访问时都被阻止了. ##查看SELinux设置[root@bgsl-001 vsftpd]# getsebool -a|grep ftp allow_ftpd_anon_write --> off allow_ftpd_full_access --> off allow_ftpd_use…
catalog . Getting Started . install guide for OS X and Linux . Features Overview . Logging . query example 1. Getting Started osquery is an operating system instrumentation framework for OS X and Linux. The tools make low-level operating system analy…
Sysvinit 的小结 Sysvinit 的优点是概念简单.Service 开发人员只需要编写启动和停止脚本,概念非常清楚:将 service 添加/删除到某个 runlevel 时,只需要执行一些创建/删除软连接文件的基本操作:这些都不需要学习额外的知识或特殊的定义语法(UpStart 和 Systemd 都需要用户学习新的定义系统初始化行为的语言). 其次,sysvinit 的另一个重要优点是确定的执行顺序:脚本严格按照启动数字的大小顺序执行,一个执行完毕再执行下一个,这非常有益于错误排查…
对于system这个函数的功能早就有一定了解,读书期间,就学习了UNIX系统编程这本书,后来买了APUE.我这个人总是有好读书不求甚解的毛病.对于system函数只知其一,不知其二.后来被人问起相关的问题,结果丢了脸.书到用时方恨自己不求甚解.今天仔细探查了下system的一些特性.       APUE这本书,对system这个函数已经将的比较明白了,只是它的相关知识稍显分散.最开始我是去网上找的资料,自己写的测试代码,可是还是有很多迷惑的地方.后来才拿起APUE ,好好读了第八章和第十章的相…
 在存储上共享了一个500G的空间,映射到Linux系统提供上,环境由2个节点组成. 一. 测试一: 直接mount 用fdisk 格式化之后如下: [root@rac1 u01]# fdisk -l -- Disk /dev/sdk: 536.8 GB, 536870912000 bytes 255 heads, 63 sectors/track, 65270cylinders Units = cylinders of 16065 * 512 = 8225280bytes Device B…