Dns_bind_ master-slave domain name serverIn a real network environment, a primary server often does not meet all user needs, from the server can crawl the specified zone data files from the primary server, play the role of backup and load balancingConfiguration process:
Allow the update request from the server
A CentOS minimized installation machine, yum-y install ntpdate installation ntpdate sync time. Execute ntpdate time.nist.gov, unable to synchronize time with server, and the following error occurred: ntpdate[1897]: No server suitable for synchronization foundExecution: ntpdate-d time.nist.gov command Debugging, the printing results are as follows:NTPDATE[1976]: ntpdate [email protected] Mon Feb 6 07:22:46 U
MySQL is a multiuser, multi-threaded SQL database server. It can be used in relational database of various popular operating system platforms, which has a distributed database management system of client/server architecture. MySQL is fully applicable to the network, and the database built with it can be accessed anywhere on the web. MySQL can use the SQL language. SQL (Structured Query language) is the most
Bird Brother Linux Server Chapter learning SummaryDanbo Time: 2015-7-17The network mount (AUTOFS) mechanism is started by default at the Runlevel3 startup level, and we can turn it off by command: Chkconfig autofs off or/etc/init.d/autofs stop.Query start service on network listening: Netstat-lntup[Email protected] ~]# NETSTAT-LNUTPActive Internet connections (only servers)Proto recv-q send-q Local address
A slow connection occurs when using an SSH client to connect to another Linux server on Linux. But to change a client to even find the speed is normal. Assume that the SSH client appears as a problem.So using ssh-v IP debugging, sure enough to find the problem. The output is as follows:[Email protected] ~]# ssh-v 10.60.9.32OPENSSH_5.3P1, OpenSSL 1.0.1e-fips 2013D
One, Linux Remote Desktop Connection Windows Server 2003.I use the software is rdesktop, using the source code package installation, three steps:./configure--prefix=/opt/rdesktop make made install. Then establish a quick connection: Ln-s/opt/rdesktop/bin/rdesktop/usr/bin. To connect to a Windows Server, use the command: (1) rdesktop-g 640x480-d IP (2) rdesktop-f-
Objective: To access the specified file system on server a on server B
First, configure ServerEdit/etc/exports and add:/Home 192.168.1.1 (RW) # The IP address is the address of server B, and the directory is the directory to be shared
Then start the NFS service:/Etc/init. d/nfs start
Mount it to server B.
Mount19
Why Linux log servers are installed:
As we all know, Linux is a perfect log system operating system. When the system administrator is running the maintenance server, it is unavoidable to view the log file, when the server is wrong, the error is not to view the system log. When administrators manage a network with more
Transfer files to the server in linux, and transfer files in linux
Scp secure file copy (ssh-based login)
1.If you want to transfer the local/home‑based file linux.tar.gz to the remote server 10.108.125.30, and save the account name of the remote server to the/home/test
1. install and configure the NFS server
1> to enable the NFS server to provide services, you must start inet, portmap, nfs, and mount.These four daemon processes are maintained in the background.2> plan the partitions or directories to be shared.3> define client Parameters4> Configure the NFS master configuration file:/etc/exports5> restart the NFS service
1. Configure the syntax of the/etc/exports file# Vi
First, what is the SCP?
The SCP is a secure copy shorthand for remote copy of files under Linux, and a similar command has CP, but the CP is only copied on the local computer, not across servers, and the SCP transmission is encrypted. may have a slight impact on speed.
Second, what is the use of SCP?
1, we need to get a file on the remote server, the remote server
Tenkine November 15 SWsoft The company's business is to split the Linux server into separate partitions, and the company will begin testing its widnows version of its products.
The software, called Virtuozzo, is a feature that splits a single version of the operating system so that it looks like several operating systems. The software is primarily intended for companies hosting low traffic sites. Virtuozzo
One: Overview
The purpose of this article is to describe how to use open source software procmail and Qpopper to configure a POP3 server that can be used by a large number of users, with a focus on maintaining optimal server performance.
Two: Steps
Software Environment for Redhat Linux 7.1
1. Download the latest version of Procmail and Qpopper
Procmail The latest
*/etc/inetd.conf File
As we all know, as a server, the more open the service port, the more difficult to guarantee the security stability of the system. So servers that provide specific services should be as open as possible to the ports that provide the service, and the services unrelated to the server will be shut down, for example, a machine that is a WWW and FTP ser
1. Turn on the virtual machine Linux server and open the SECURECRT remote connection Terminal Server;2. Open the sessionoptions in the options in SecureCRT,3. In the Open Sessionoptions dialog box, set the upload (upload) path and the download (download) path,Click OK;4. Enter the ll command on the SECURECRT to view the files on the
Objective:
This paper mainly introduces the use of Squid and Squidguard configuration Proxy server in Linux, with the WWW Proxy service as an example to explain how to filter harmful sites and restrict users ' access to the Internet.
I. INTRODUCTION
Squid is the most popular proxy server software under Linux, it is po
Today, someone told me that the memory on the Linux server is not fast enough, 128G of memory, will be used up immediately. I was startled, the application on this server is now very small, ah, how the utilization will be very high. First use Zabbix to see the next, memory remaining space is still very big, there is 117G of spare ah. Then log on to the
Server heat dissipation and Linux temperature detection, linux TemperatureWhen the server is placed in poor cooling conditions, this will lead to premature damage to the hard drive, and other components of the server will soon fail. When a modern
Server information is as followsExternal network server: eth0: Public network IPEth1: Intranet IP (192.168.10.205)Public network to provide services, intranet IP and internal LAN communication.Configuration Process :(1) Open iptablesService iptables Restart (temporarily open)Chkconfig iptables on (permanently open)(2) Configuration iptables(2-1) Configure the filter option so that IP and port can be passed
The WebLogic Management Server and the managed server are started, closed, and occasionally used, but not commonly used, resulting in the need to forget, and then re-check help.Therefore, to this record, easy to access, implementation.First, the WebLogic startup and shutdown scripts are all in the Bin folder of the domain directory, so CD to that directory firstCD $WEBLOGIC _home/user_projects/domains/$DOMA
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