linux foundation certified system administrator

Without root, add regular users and manage with sudo authorization Change the default remote connection SSH service port and disable root user remote connection Scheduled Automatic server time update Configure the Yum update source to download and install the RPM package from the domestic update Turn off SELinux and iptables (iptables work scenario if a WAN IP is typically turned on, except for high concurrency) Adjust the number of file descriptors, and the process and file

requirements target① the basic optimization of Linux system at the beginning of all server construction. All-network server time synchronization and installation directory, directory path uniform specification.②web Server, configure the site product catalog (pseudo static/dynamic separation). The lamp environment and LNMP environment are optimized in depth respectively. Internal business implements domain

Linux Installation instructions forThis article mainly introduces installation of Linux. This paper takes Redhat 6.4 as an example ;You can also install the download CentOS,CentOS is derived from the Redhat Foundation, the installation method is similar. Redhat 6.4 seed Image:ed2k://|file| [%e7%ba%a2%e5%b8%bd%e4%bc%81%e4%b8%9alinux.6.4.%e6%9c%8d%e5%8a%a1%e5%99%

.png " title=" Image020.png " alt=" 5815da15daed2b428938b5f9da20f913.png-wh_ " > Confirm and complete initialization of 650) this.width=650; "Src=" Https://s2.51cto.com/oss/201710/29/8411ad4c451aee1a30e677bd6a91784b.png-wh_500x0-wm_3 -wmp_4-s_1787294697.png "title=" Image025.png "alt=" 8411ad4c451aee1a30e677bd6a91784b.png-wh_ "/>Now, our Rhel 7 version of the system is installed.And so on which day Xiao Xiao find solve 4K display problem, and t

Original from http://www.ghacks.net/2009/04/04/get-to-know-linux-the-etcinitd-directory/Translation from http://blog.csdn.net/acs713/article/details/7322082 Note: The author has a blog about the LIUNX system kernel knowledge of dry goodsFirst, about/ETC/INIT.DIf you have used a Linux system, you must have heard of the