rhce course

1. Process Management 1. ps view process commands (generally use the following two combined options) ps-aux: displays all process information in the system ps-elf: all process details in the system will be displayed in long format: USER: the name of

Unit 3 estimation of experiment files and directory operations: 1 hour and 30 minutes objective: familiar with the use of files, number of directory operation commands, syntax, and several files. The experiment combines these commands into a common

1. Concepts 1. startup manager is a program stored in the disk start sector, for example, the hard disk MBR (MasterBootRecord). After the system completes the startup test, if the system is started from MBR, the BIOS (BasicInput/OutputSystem) sends

Autofs is a very heavy Mount mode and is also the most commonly used Mount mode. Let's talk a little bit about it. Preparations: 1. build an nis server. set up an nfs server. nis and nfs can be the same server. You can try different servers. In this

1. attach a CD to set the options of the optical drive in vmware and load the rhel6 CD image. 2. enter "# cd/media/" in the installation rpm package to access the content of the disc. Enter the cd folder and the Packages folder. From RHEL6, the rpm

Author: kkmangnn ([email] kkmangnn@gmail.cn [/email]) # Welcome to reprint, but please keep this segment of system installation: in two cases (1), no lvm, manually set partitions, mainly this. In this way, the/etc/fstab file (2) has lvm, which is

RHEL5.4 is installed in Vmware, but the allocated disk is only 7 GB at the beginning. After various services are installed, the disk space is getting tighter. After the virtual machine is adjusted to a larger space, the additional space is allocated

Enterprise requirements: 1. Configure ssh to allow access by sisi users and deny access by the remote.com domain. 2. Configure ftp to allow anonymous download from the/var/ftp/pub directory, deny Access to the remote.com domain. mount iso

The level is limited and the problem is in a hurry. Please forgive me for any mistakes or omissions. In addition to CHSCA: 1. Change the password at startup Esce [in 1 mode] enterb [boot] setenforce0 {Change Password in tolerant mode}

Mona1: UNIX was invented by Bell Labs. UNIX is a registered trademark of AT & amp; T, so UNIX developed by other companies has their own names, such as ibm aix and Sun Solaris. In UNIX, everything is a file. Based on this theorem, UNIX configuration

In Linux, how does one use commands to generate a random number in a range? In shell, there is an environment variable RANDOM with a range of 0--32767. If we want to generate a number in the range of 0 to 25, what should we do? As follows: $ RANDOM %

Configuration and installation of ypserv service on the NISServer # chkconfigypserv-list [view the startup status of ypserv in different modes] # chkconfigypservon [enable it to automatically start in 2, 3, 4, 5] # chkconfigypserv- list [view the

INSTALLATIONUsetherightbootdiskfortheinstallation: boot. img-Standardinstallationbootnet.img-Networkinstallationpcmcia.img-PCMCIArequiredinstallationInstallLILOinan INSTALLATION　　Use the right boot disk for the installation:　　Boot. img-Standard

This is a general pptp vpn access. The intermediate VPN Server is generally served by Windows server. Here we use CiscoRouter Uter to replace Windows server as the PPTPVPN access server. Ipcef // to support MPPE, you must enable CEF! Vpdnenable!

This section focuses on redirecting, piping, and vim editorsFirst look at the output redirection1 > or > means to overwrite the correct information with the output redirect, 1>> or >> to indicate an additional redirect2 > indicates that the error

When executing the LS command in Rhel, you can see the first letter to determine the type.The common types areD (Catalogue)-(normal file)C (device file character type)B (device file, block file)L (Soft connection, shortcut)For example, directories

This section learns the concept of grub, the sequence of boot calls, how to customize grub files, and how to debug some common system startup errors and so on.Before learning the first 446 bytes of the MBR partition is the system boot program grub,

This section is more content, mainly to learn the use and configuration of FIREWALLD.Before learning Firewalld, take a simple look at the other tool TCP wrapper. This is a host-based access control system that he generally complements and

I used to assign a private server to the rhct Model Tester. Haha, that's good. Now I have taken the CE test again. In fact, it is almost the same. I have already completed the configuration. Now I have time to summarize it. A few days ago, I tried

Lab environment: Three DNS servers, one serving as the primary server and the other serving as a subdomain. The RHEL 5.4 system is installed on the three servers, and the test is successful. Note: The primary dns address is 192.168.1.1, the