rhel tutorial

Installing and setting the YUM source in RHEL5.0 can solve the dependency problem during software installation. the basic steps are as follows: 1. mount/dev/cdrom/mnt # attach the disk to mnt under. 2. modify the YUM file. the YUM file location is as follows:/etc/yum. repos. d/rhel-debuginfo.repocp/etc/yum. repos. d/rhel-debuginfo.repo Installing and setting the YUM source in

The RedHat developer mongowgarret found that Lenovo seems to think that there are only two operating systems in the world, one is Windows and the other is RedHatEnterpriseLinux (RHEL ). He checked Lenovo ThinkcentreM92p desktops and found that the UEFI firmware on the computer will check the descriptive strings of the operating system to prevent unspecified operating systems from starting. The firmware lists WindowsBootManager and FedoraLinux, allowin

RHEL 7 or CentOS 7 USB boot Disk production The tools you needA. UltraISO softwareB. 16G or 8G USB drive one RHEL 7 Production steps: A. Loading Rhel 7 ISO packages with UltraISO softwareB. Leave the Isolinux directory in the RHEL 7 ISO package and the other directories and files right-click to delete

Have you ever come across a situation where you can't remember the user account password on a Linux system? It's even worse if you forget the root user password. You cannot perform any changes to the entire system. If you forget the user password, it is easy to use the root account to reset the password.But what if you forget the root account password? You cannot use a user account to reset the root account password because the user account is usually not authorized to perform this task.Reset fo

The topic of this article is SELinux configuration on RHEL 5. RHEL also provides two methods to configure SELinux: graphical user interface (GUI) and command line. To demonstrate the ease of use of SELinux, This article uses the rhel gui to enable SELinux. To enable SELinux from the rhel gui, choose system> Administrat

Statement:Before you install and use Telnet, you need to keep the following points in mind.Using Telnet in a public network (WAN) is a very bad idea. It transmits log-in data in plaintext format. Clear text is visible to everyone.If you still need telnet, it is strongly recommended that you only use it inside the LAN.You can use SSH as a workaround. But be sure not to log in with the root user.What is Telnet?Telnet is the protocol used to telnet to a computer over a TCP/IP network. Once a connec

Red Hat has released the official version 7.0 of Red Hat Enterprise Linux (RHEL. RHEL 7.0 is the next-generation operating system of Red Hat and provides improvements including servers, systems and the overall Red Hat open source experience.The biggest change is the new file system-XFS will replace ext4-mainly because XFS supports up to 500 TB while ext4 supports only 50 TB. The performance of the XFS file

RHEL (CentOS) 6.5 disk partition planning suggestions RHEL official documentation recommendations: Some Introduction 1. swap this suggestion is only applicable to general users and has special requirements, such as application server or database server and related software requirements for Swap size, such as Oracle. 2. The/boot partition contains the kernel of the operating system and the files used by the

1. let's talk about the differences between RHEL and CentOS in your eyes. I feel that there is no difference, except for Licence and service fees, basically the same 2. the differences between RHEL/CentOS and other Linux releases are as follows, debian/ubuntu systems are popular (excluding FreeBSD Unix systems ). SUSEEnterprise has never been used. 1. differences between

A. subscription and update of RHEL are charged. you can purchase technical support services. Centos software updates are free of charge. B. RHEL has a Redhat trademark and Centos does not; c. The content of RHEL and Centos should be basically the same, but C removed the Redhat trademark and re-compiled it. A. subscription and update of

Under the rhel5.x version, after adding operations such as disk partitioning, the kernel is used to re-read the partition table information using the partproble command so that it does not have to be restarted. However, there was a recent error using Partprobe under Rhel 6 (Red Hat Enterprise Linux Server Release 6.6 (Santiago)). [[Email protected] ~] # LSOF/DEV/SDA [[Email protected] ~] # PARTPROBE/DEV/SDA Warning:WARNING:the kernel failed to re-re