sonet systems

Author: Wu shanrong Abstract: This paper studies the core concepts of XMI technology, puts forward the XMI integration model of the integrated system, and studies its expression and processing, the information exchange mode between heterogeneous systems based on the XMI model is provided. Workflow technology has produced a wealth of research results in the integration of heterogeneous systems. In this paper

onsituationlook, there are a lot of loopholes in China's education,single from Computer Systems, for the children of the ideological indoctrination, at least now is not right, because now almost all are learning how to use windows,really, this is easy to learn,butnow with the progress of technology,More and morePlace Linux,linux needs to instill this system of thought, open-source ideas, not just graphical interfaces, from a young age. now no matter

Installation of Linux systems (centos6.8)First step setting boot up press F2 to enter this interfaceThe five options for installing the system's main interface are indicated separately650) this.width=650; "title=" 1.png "alt=" wkiom1keelegispfaabmqacyhk4580.png-wh_50 "src=" https://s2.51cto.com/ Wyfs02/m01/92/e4/wkiom1keelegispfaabmqacyhk4580.png-wh_500x0-wm_3-wmp_4-s_495091673.png "/>1. Install Orupgrade an existing systemInstall a new system or upgr

Installation of Linux systems (centos6.8)First step setting boot up press F2 to enter this interfaceThe five options for installing the system's main interface are indicated separately650) this.width=650; "title=" 1.png "alt=" wkiom1keelegispfaabmqacyhk4580.png-wh_50 "src=" https://s2.51cto.com/ Wyfs02/m01/92/e4/wkiom1keelegispfaabmqacyhk4580.png-wh_500x0-wm_3-wmp_4-s_495091673.png "/>1. Install Orupgrade an existing systemInstall a new system or upgr

How to load Linux systems using only a USB flash driveMaybe you've heard Linux and are a little curious about it, and you finally want to actually experience it, but you probably don't know where to start.It is likely that you have searched the Internet for some information and then encountered words like dual systems and virtual machines. They may be too professional for you, so you won't sacrifice the ope

When the operating system manages files and data through the file system, the disk or partition needs to be created before it can be used by the operating system, and the process of creating a file system is what we often call formatting. Devices that do not have a file system are also known as bare (raw) devices.Common file systems include FAT32, NTFS, Ext2, Ext3, Ext4, XFS, HFS, and so on. where FAT32, NTFS is a common file system under Windows, now

In ECS Linux systems, log files are very important files that record important things in many systems. Common log files in Linux systems are outlined below: /var/log/cronYou can check the cron file for the actual execution of the CRONTAB task schedule, whether the execution occurred incorrectly, and whether the/etc/crontab file has a syntax error or a wr

Tags: Linux system build NFSFirst, the Introduction of NFSNFS is the abbreviation for network filesystem, which is the networked file system. A contract for the decentralized file system, developed by Sun, was announced in 1984. The function is to enable different machines, different operating systems to share individual data with each other, so that the application can access the data on the server disk through the network , and it is a way to implem

below exampleService side:$apt-get Install Nfs-kernel-serverVi/etc/exports Add NFS Directory:/personal/nfs_share10.1.60.34 (Rw,sync,no_root_squash)$sudo Exportfs-r$sudo/etc/init.d/portmap Start$sudo/etc/init.d/nfs-kernel-server StartClient:$sudo Apt-get Install Nfs-common$sudo Mount 10.19.34.76:/personal/nfs_share ~/nfsshare Example:3. File TypesLinux The following file types are mainly:A) ordinary files : C-Language meta-code, shell scripts, binary executables, and so on. Divided into plain te

this approach is that other operating systems may not fully support it (if you run 2 operating systems on the same machine).To correct the RTC using UTC mode, use the following command:set-0Using local time correction, use:set-1Setting up NTP synchronizationNetwork Time Protocol (NTP) is a network protocol for clock synchronization between computer systems with

Backup of Dual operating systems The method of backing up and restoring a dual operating system is similar to a single operating system and is a backup of the partition where the operating system is installed. For example, the backup and restore method for installing Windows 2003 (shown in Figure 1) on a Windows xp,d disk on the C disk is as follows. 1, backup dual operating system When backing up dual operating

In daily use systems, there are often problems like malicious stubborn programs and inability to delete files, requiring highly privileged operations, losing passwords, and requiring the highest privacy. In this article, you will be taught how to use the Windows 7 Maximum privilege account system to solve all of these problems with TX! What can system do? Under non-system permissions, users cannot access certain registry keys, such as "Hkey_local_m

then quit the reboot, note: When restarting, hold down the left mouse button, you can exit the Windows XP CD-ROM in the CD-ROM and insert the Linux Unbuntu installation CD , the CD-ROM after the start, select the Unbuntu icon into the Unbuntu, the installation language to choose English or Chinese casually, before installation we need to use the Linux Ubuntu partition (Windows (xp+ three systems shared hard disk partition) and Linux Ubuntu) partition

Now the Netizen is really more and more intelligent, the people of the past is a system alone, now in the circumstances allow the case is dual system operation, because each system has its own advantages, netizens can according to demand to arrange the use of which system, so the dual system seems very necessary. Some of the win8.1 system installed at the same time also installed WIN10 or other systems, the two sy