types of learning management systems

dependencies generated by the Linux installation package, and the Apt-get tools on CentOS and Debain will solve the dependencies that are generated when the software is installed. Let's take a detailed look at the rpm and Yum Tools on CentOS.RPM is the Package Manager: Software packages management tools on Linux operating systems such as Redhat and CentOS, which have become the industry standard for the Li

, where eth0 IP is 192.168.10.11,eth1 IP is 172.16.10.11. Eth0 Connected Intnet But eth1 is not connected, now there is another machine (172.16.10.12) and eth1 is interoperability, then how to set up to allow the connection eth1 this machine can connect intnet?echo "1" >/proc/sys/net/ipv4/ip_forwardIptables-t nat-a postrouting-s 172.16.10.0/24-o eth0-j MasqueradeRegular backup and recovery:Service Iptables Save this will be saved to/etc/sysconfig/iptablesIptables-save > Myipt.rule can save firew

EOMS password retrieval vulnerability + SQL Injection affects provincial core network management support systems of China Telecom, mobile and Unicom Operators It is said that the system was issued by the headquarters of the three major operators to the provincial level for monitoring the provincial core network support management system.Detailed description: Test

install the SAR: Yum install-y sysstatSar-n DEV View network card trafficSar-n DEV 1 Real-time monitoring network card traffic, 1 seconds to refresh once, press CTRL + C exit;Sar-n DEV 1 10 View network card traffic, 1 seconds to refresh once, view 10 times;Sar-n dev-f/var/log/sa/sa16 Check the system log to save the network card traffic information, according to the date of the day named;View Historical Load Sar-qView disk read-write Sar-b7. Check the network status netstatNETSTAT-LNP View cur

IO Device. The DMA controller consists of three parts: L host and DMA controller Interfaces L interface between the DMA controller and block Device L Io control logic Four types of registers: L command status register: used to receive Io commands sent from the CPU, control information, or device status L memory address register Mar. During input, it stores data from the device's initial destination address. During output, it stores th

There are three types of users in LinuxRoot User: Super AdministratorSystem User: Linux required to run some programs is not recommended to modifyGeneral users: general modification of thisUsing the command Groupadd, add user groups, parameters: Group nameIn the file/etc/group, add a recordUsing the command Groupdel, delete the group, parameter: group nameUsing the command Groupmod, modify the group ID, parameter:-G new Group ID group name;Manage user

customizing the configuration requirements for each virtual machine (referred to as virtual machine), his overall structure is shown. 650) this.width=650; "title=" A.png "style=" Float:none "src=" http://s3.51cto.com/wyfs02/M02/47/0F/ Wkiom1p2bufb-wsyaafd6z9gdn4037.jpg "alt=" wkiom1p2bufb-wsyaafd6z9gdn4037.jpg "/>in our daily life there are people who have heard of virtualization, virtualization is a course, in our Linux On the journey of learning it

Linux Systems-User Management-Administrator authorization The root privilege of a Linux normal user 1 often used to manage some services need some permissions, you can edit in the Visudo User name Host address = absolute path (to restrict permissions so that users can execute the program only under these paths, without root privileges) 2 can be used for Web site managem