Display Memory Usage Linux

1.free This command is used to view the current system memory usage, which can display the remaining and used physical memory, swap memory, shared memory, and kernel buffers in the system. 2. Shutdown This command is used to shut down or enter a single maintenance mode. The 3.data Data command can display the date and time of the current system. The clock command can also be used to display the current date and time of the system (by default, ordinary users cannot perform the clock command and must log on with the root account). For example: [Root@teache ...

Recently read some Linux command line articles, in the system information to learn a lot of commands. Think of a previously written article in fact, Linux so much easier to find these system information to view the command can also be summed up a small thing to come. # CAT/PROC/MTRR View Mtrrs Memory type range Registers # uhttp://www.aliyun.com/zixun/aggregation/11696.html >name-r view current kernel ...

The .htaccess file allows us to modify some server settings for a particular directory and its subdirectories. Although this type of configuration is best handled in the section of the server's own configuration file, sometimes we do not have permission to access this configuration file at all, especially when We are on a shared hosting host, and most shared hosting providers only allow us to change server behavior in .htaccess. .htaccess file is a simple text file, note the "." before the file name is very important, we can use your favorite text editor ...

Firstly, this paper introduces the basic concept and installation method of crash, then introduces how to use crash tool to analyze kernel crash dump file, including the usage of various common debugging commands, and finally demonstrates the powerful function of crash by several real cases encountered in practical work. In this article, both the detailed tool use method, but also has the rich actual http://www.aliyun.com/zixun/aggregation/7734.html "> Case Analysis ...

Simply put, a process is the process of executing a program or task. In a Linux system, executing any command creates one or more processes, that is, the command is implemented through the process. The multitasking concept of Linux operating systems can be better understood from a process perspective. For http://www.aliyun.com/zixun/aggregation/13879.html "> System administrators, the management system process is an important part of day-to-day management." View process status in the system with PS ...

Once you've identified a value for your Linux system that you're interested in, you can register it with the Snmpwalk command. In many cases, the text file in the MIB is simply a replacement channel that refers to those "0" or "1" in the OID Directory Branch and the non-OID directory branch, where the data exists at the bottom of the leaf in extra data form. The Snmpget directive cannot be used in a directory branch that the MIB variable cannot find. In the following example, we want to find the replacement channel for the Sscpurawuser OID, but snmpg ...

Ganglia monitoring software is mainly used to monitor the performance of the software, such as: CPU, MEM, hard disk utilization, I/O load, network traffic, etc., through the curve is very easy to see the work of each node, the reasonable adjustment, distribution system resources, improve the overall performance of the system plays an important role. Support browser access, but can not monitor node hardware specifications, ganglia is a distributed monitoring system, there are two Daemon, respectively: Client ganglia monitoring Daemon (Gmond ...

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; The Ifconfig command makes the Linux core aware of some network interfaces such as software loopback and Nic so that Linux can use them. In addition to the usage described above, the ifconfig command is used to monitor and change the state of the network interface, and can also carry many command-line arguments. Here is a IFCO ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall Linux VPS application is very wide, in the server domain usage greatly surpasses the Windows system 。 In particular, foreign service providers, mainly he is free of the relatively few loopholes. Non-graphical operation, getting started slightly difficult. In the absence of templates to create a site to set the domain name and so on have to use the order to reality ...

If you want to create a private cloud, you need to use management software to create a virtual pool of computing resources, provide access to end users, and deal with security, resource allocation, tracking and billing issues. We tested five mainstream private cloud management products: Novell's Cloud Manager,eucalyptus Enterprise Edition, Opennebula,citrix Lab Manager and cloud.com cloudstack ...