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How to install PostgreSQL 7/6 and phpPgAdmin in CentOS 5/6. 4
PostgreSQL is a powerful open-source object relational database system that runs on almost all major operating systems, including Linux, Unix (AIX, BSD, HP-UX, sgi irix, Mac OS, Solaris, Tru64), and Windows OS. In this tutorial, we will learn how to create P
Install Java JDK 8 in CentOS 7/6. 5/6. 4
This tutorial describes how to install and configure the latest Oracle JavaJDK on servers CentOS7, 6.5, and 6.4. Although these steps should also apply to other RPM-based releases, such as RHEL7, 6.x, Scientific Linux6.x, and Fedora.
- i386 4,320+1,408
extras CentOS-5 - Extras 229+53
rpmforge Red Hat Enterprise 5 - RPMforge.net - dag 11,251
repolist: 19,075
How does I use EPEL Repo?
You need to use the YUM command for searching and installing packages. For example we sea
http://www.oschina.net/question/17_39276
The old version of the Redhat/centos defaults to install the system, will default to open the network card and set to boot.
But this feature has changed in the latest version 6 ... The NIC will disconnect by default after the reboot.That is to say, if the server reboots, it will forever break the
Rpmforge Repository is a utility that's used to install third party software packages under Red Hat Enterprise Linux (RHE L) and Community ENTerprise Operating System (CentOS). It provides more than software packages in the RPM format for these Linux distributions.Rpmforge Repository not a part of the RHEL or CentOS but it's designed to work with these operating systems. The complete list of Rpmforge packag
Run the wget command to download and install the RPM file. RHEL/centos 7 64 bit # RHEL/centos 7 64-bit ### Wget http://dl.fedoraproject.org/pub/epel/beta/7/x86_64/epel-release-7-0.2.noarch.rpm# rpm-IVH epel-release-7-0.2.noarch.rpm RHEL/centos 6 32-64 bit # RHEL/centos
CentOS 5/6 Startup process1. Power-On self-test (POST)The system hardware is detected by the CMOS chip BIOS system after power on2. Find system Boot2.1 Boot settings boot sequence in the BIOS in order to find the boot program, start with the first boot program device;2.2 Load bootloader, select the kernel version to be loaded by bootloader, load the kernel versio
Install the latest EPEL version on CentOS 5.x or 6.x (newer than Netease source)
This article is too simple. You only need to read where I write Chinese.Installing rhel epel Repo on CentOS 5.x or 6.x
How to install rhel epel repos
, if you don't have networking)# 3-full Multiuser mode# 4-unused# 5-x11# 6-reboot (do not set Initdefault to this) 0: Turn off the machine 1: Single user mode (root, no login required), one, maintenance level2: Multi-user mode: Network function is started, but NFS is not started, maintenance mode 3: Multi-user mode: Normal mode, default to Text interface 4: Reser
TCP connection and disconnection?TCP through three handshake links, through four disconnectsSYN: Set this value to 1 when establishing a connectionACK: When ack=1 indicates confirmation, ack=0 indicates that the acknowledgement is invalidFin:fin=1 indicates a disconnect request3. Please describe briefly what common application layer protocols are, what protocols are used by the transport layer, and how many port numbers?Protocol Nameprotocol corresponding to the transport layerPort numberDNS Do
Outline1. What is EPEL?Ii. Comparison with 163 YUM SourceIii. install and use epel yum source in CentOS 5.XIv. install and use epel yum source in CentOS 6.X5. usage experienceVi. yumdownloader Tool7. Uninstall the EPEL SourceNote: CentOS
selection number:4 [Press Enter]Now you can try the Java version, the output is as follows# Java-versionjava Version "1.7.0_75" Java (tm) SE Runtime Environment (build 1.7.0_75-b13) Java HotSpot (tm) 64-bit Server V M (build 24.75-b04, Mixed mode)Set Environment variablescat >>/etc/profile.d/java7. sh eofexport java_home=/opt/jdk1. 7 . 0_75export jre_home=/opt/jdk1. 7. 0_75/jreexport PATH=\ $PATH:/opt/jdk1. 7. 0_75/bin:/opt/jdk1. 7. 0_75/jre/bineofRe-open the terminal env|grep HOME to see the
Disable the system restart function by pressing Ctrl-Alt-Del in RHEL/CentOS 5/6
In Linux, for security considerations, we allow anyone to press Ctrl-Alt-Del to restart the system. However, in the production environment, press Ctrl-Alt-Del to restart the system.
In this article, we will introduce how to disable the hotkey in RHEL and
Password-protected single-user mode on RHEL/CentOS/5.x/6.x
Hello everyone, if you have not used a password to protect the single-user mode, this poses a great risk to your Linux server. Therefore, when it comes to security, it is very important to use a password to protect the single-user mode.
This article will show you how to use a password to protect your sing
/resolv
. Conf file;
Note: After the configuration file is configured, restart the service to take effect.
2. route-related configuration file:/etc/sysconfig/network-scripts/route-IFACE
Two styles:
(1)TARGETviaGW
(2) define a route for each three rows
ADDRESS
#=TARGET
NETMASK
#=mask
GATEWAY
#=GW
3. Configure multiple addresses for the NIC:
ifconfig
:
ifconfig
IFACE_ALIAS
ip
ipaddradd
Configuration file:
ifcfg-IFACE_ALIAS
DEVICE=IFACE_ALIAS
Recently, we started to connect Linode and DigitalOcean VPS. the Linux systems provided in these products are the "least secure ", so I want to see if the GNOME desktop can be installed, and then connect to the terminal desktop with xrdp desktop.Security and desktop environments
Yum itself provides the groupinstall method for the security kit. First, run the following commands to check which KIT groups are available:
yum grouplist | more
The names of CentOS
CentOS startup level: init 0, 1, 2, 3, 4, 5, 6
This is a long-time knowledge point, but I have been confused all the time. Today I am trying to understand it ..
0: stopped
1: Maintenance by root only
2: multiple users, cannot use net file system
3: more users
5: Graphical
4: Security Mode
CentoS 6 start the process: 1. Load the BIOS hardware information to get the first boot device .2. Read the boot loader (grub) information for the first boot device MBR3. Load core operating system kernel information, the core begins to decompress, (load initramfs.img) and attempts to drive all hardware devices.4. The kernel executes the INIT program and obtains the running information.
generated files after installing the operating system, capable of scanning the hard drive of the current operating system, loading the corresponding modulesA memory-based disk device for system initialization that uses a space in memory as memoryCentOS 5:/boot/initrd-version-release.imgTool Program: MKINITRDCentOS 6,7:/boot/initramfs-version-release.imgTool Program: DRACUT,MKINITRDAttention:A) is not required, when the kernel is self-compiled know th
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