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When installing an Oracle 11g RAC, we need to configure the NTP service. There are many ways to configure clock synchronization in the case of virtual machines, either using the VMware-brought clock synchronization feature or directly using a local node as a time server. This article describes a clock server that directly configures NTP mode.[Python]View PlainCopyprint? 1. View the two-node hosts config

following the previous section of Ubuntu configuration OpenStack One: Configure the host environment, continue to synchronize for installation time, and configure OpenStack's package source and install database Maridb. (The full text is done by hand-built and)First section connecting the configuration host environment http://www.cnblogs.com/skylarzhan/p/7702078.htmlOne, the installation time synchronization NTPNTP (Network time Protocol) is a protocol used to keep the time synchronization of ind

Configure NTP time synchronization on Linux with a break operation step, sorted as follows: 1. Install packages (on server and client): The code is as follows Copy Code Yum Install NTP 2. Server-side configurationFor example:First, the server IP address is set to: 192.168.146.110 Modifying the NTP configuration file

Installing the NTP service Zypper-n Install NTP Configure NTP Vim/etc/ntp.conf When the external time server is unavailable, local time is used as the time service Server 127.127.1.0 # Local Clock (LCL) Fudge 127.127.1.0 Stratum 10 The most active time server on the Chinese side Server 210.72.145.44 Perfer Server 202.112.10.36 Server 59.124.196.83

When installing Oracle 11g RAC, We need to configure the ntp service. There are many ways to configure the clock synchronization mode when using virtual machines. You can use the clock synchronization feature provided by vmware or directly use a local node as the time server. This article describes how to directly configure the ntp clock server. 1. view the hosts configuration of two nodes [Root @ node1 ~]

Linux ntp time server and client installation and configuration 1. Main file and command:/etc/ntp. conf server configuration file/etc/sysconfig/clock time zone configuration file/bin/date display and set the time command/sbin/hwclock for BIOS clock (hardware clock) the command/usr/sbin/ntpd is mainly used to provide the NTP service program/usr/sbin/ntpdate for th

The NTP service process has fixed a major security vulnerability. Please upgrade it as soon as possible. US-CERT disclosed that a large number of security defects have been found in ntpd recently. Ntpd is a service process of Network Time Protocol NTP. Most servers and devices use it to process time-related tasks. Although there are multiple NTP service processes

In a clustered environment and multi-server applications that require log synchronization, in order to ensure normal collaboration between multiple servers, it is necessary to keep their time consistent, and manually adjust the time on multiple servers is extremely unscientific, and this requires the use of NTP time servers to complete the synchronization of time. One, the installation of NTP server We only

NTP upgrade, upgrade Redhat is very smooth, after the upgrade will default overwrite the original file, restart the service, use NTPD--version to view the verification, can upgrade SuSE Linux but found errors frequently, the following is my upgrade encountered some problems, After the summary hope to have and I met the same mistake of the parents can be used as a reference:I. Due to the vulnerability of NTP

Simple ntp server configuration-Linux Enterprise Application-Linux server application information. For details, refer to the following section. About Time Service Network Time Protocol (NTP, Network Time Protocol) is used to synchronize all of its client clock services. The NTP server synchronizes the clock of the local system with a public

Recently, in the process of building an Oracle RAC, DNS and NTP were needed, where DNS was used for domain names, IP management, and NTP for time synchronization. In fact, a long time ago to build these two services, but the technology, in essence, in line with the "use of waste back" objective law. The more you use it, the more skillful you will be. Less use even without, slowly forget. So that when the da

When installing Cloudera CDH, it is required to install the NTP server to implement the time synchronization problem between different hosts. The following is a detailed introduction to the NTP installation process.First, the server-side configuration1, first install NTP server, installation of a lot of ways, you can choose Rpm,tar can also choose Yum Online inst

2015.8.30NTP serverNTP server (Network time Protocol), is used to do LAN server synchronization, to ensure that the local area network server and time server consistency, some applications to the real-time requirements of the application must be unified timeThere are also many time servers on the Internet, pool.ntp.org (official NTP time server)The NTP server needs to turn on 123 port (UDP) to view the open

For server operations, we need to pay special attention to several issues1, for the e-commerce platform, the first is the time problem, so we first want the server time of the regular synchronizationNTP Server Build- upNTP ( Network Time Protocol Time Network protocol)currently used by NTP almost all of them . NTPv3 by RFC1305 Document Descriptionsecond-level accuracy SNTP ( Simple Network Time protocol ) by RFC2030 DescriptionNTP belongs to the Appli

Introduction: On the network, the Linux server is a great way, but also the attack. This article will describe the NTP attack problem encountered in practice and the corresponding solution. 1. Scene description Aliyun on the ECS, over a period of time, frequent alarm, said the traffic is too large, the DDoS attack, the service will be isolated, and stop responding to service for a period of time, flow clear. In short, the service was blocked by DDoS,

Brief introduction Principle Configuring the NTP server To synchronize Brief introductionWhen calculating the time, the most accurate calculation should be the use of "atomic oscillator cycle" calculated by the physical clock (Atomic clock, also known as atomic clock), which is also defined as the standard Time (international Atomic times). And the UTC that we often see is coordinated Universal time (Concord Standard) is the correct t