Declare Linux

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Linux Command Encyclopedia system settings: Declare

Function Description: Declare &http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp;shell variable." Syntax: Declare [+/-][rxi][variable name = set value] or DECLARE-F Supplemental description: Declare for Shell directives, in the first syntax can be used to declare variables and set variables ...

Advanced Linux Routing and traffic control: multicast routing

Multicast-howto is already very old (relatively), and inaccurate and even mistaken for 21136.html "> Reader. Before you start multicast routing, you need to reconfigure your Linux kernel to support the type of multicast routing you want to implement. This step requires you to decide what type of multicast route to use. There are basically four kinds: DVMRP (multicast version of the RIP Unicast Protocol), MOSPF (similarly, just OSPF), PIM ("Pr ...").

Apache 2 Memory Footprint Monitor script in Linux

The Web server encountered a strange problem, in the running of many apache2 processes, there will be a process, slowly fill the full memory, and then the machine is like dead, write an automatic check script, check and kill the problem of the apache2 process, the issue is mitigated, but not resolved, Because it slowly fills up the memory, Linux releases the HDD cache and periodically has performance degradation. Using RLIMITMEM parameters to limit memory, also does not work, bw_mod limit traffic also does not work today modified the script, ...

Build highly available MongoDB clusters

MongoDB company formerly known as 10gen, founded in 2007, in 2013 received a sum of 231 million U.S. dollars in financing, the company's market value has been increased to 1 billion U.S. dollar level, this height is well-known open source company Red Hat (founded in 1993) 20 's struggle results. High-performance, easy to expand has been the foothold of the MongoDB, while the specification of documents and interfaces to make it more popular with users, this point from the analysis of the results of Db-engines's score is not difficult to see-just 1 years, MongoDB finished the 7th ...

Locked in the door of the red Flag, the Beijing headquarters, a new bulletin was pasted on the gate.

February 10, closed the door of the locked central red Flag in Beijing, a new announcement was pasted on the gate, which completely cracked the hope that those who still stick to the company's work "Save China Red Flag". The bulletin said: "Because of Beijing Red Flag Software Technology Co., Ltd. operating serious difficulties, the board of directors on December 13, 2013 to dissolve the company from now on, and set up a liquidation committee in accordance with the law of the company liquidation."   January 22, 2014, a liquidation Working group has been set up, which is responsible for and carries out relevant liquidation work. 13th, 21st century economic reporter ...

Red Flag dissolved domestic operating system dream broken

Absrtact: February 10, closed the door of the locked Chinese red flag in Beijing, a new bulletin was pasted on the gate, which completely cracked the hopes of the employees who still stick to the company's work to save the red flag.   The bulletin said: "Because of Beijing red Flag Software Technology Limited public February 10, closed the door locked in the red Flag of the Beijing headquarters to paste a new announcement, this announcement has completely cracked those who still adhere to the company's work staff" to save the red flag of China's hope. The bulletin said: "Because of Beijing Red Flag Software Technology Co., Ltd. operation has serious difficulties, ...

ubuntu16.04server install dockerCE

ubuntu16.04server install dockerCE. Docker is an application that makes it simple and easy to run applications in containers, just like virtual machines, which are only more portable, more resource-friendly, and more dependent on the host operating system. To learn more about the different components of a Docker container, see Docker Ecosystem: An Introduction to Common Components. There are two ways to install Docker on Ubuntu 16.04. One way is to install it on an existing operating system installation. Another way is to use one ...

Yan Lan: build a highly available MongoDB cluster (2)

http://www.aliyun.com/zixun/aggregation/13461.html"> MongoDB, formerly known as 10gen, was founded in 2007 and after receiving a total of $ 231 million in 2013, the company's market capitalization has risen to 10 Billion dollar level, which is the result of 20 years of Red Hat, a well-known open-source company founded in 1993. High performance and easy scalability have been the foundation of MongoDB and meanwhile standardized documents ...

Gnupg-gnu PGP Usage Guide

With the development of network and computer technology, the security of data storage and data exchange has become more and more important, and encryption technology has been used in data saving and data exchange very early. In order to ensure the correctness of the identities of both sides of the network data exchange, the visa system has matured. GnuPG is a set of tools for encrypting data and making certificates, and it works like PGP. But PGP uses a number of proprietary algorithms, which are among the notorious U.S. export restrictions. GnuPG is the GPL software, and does not use any patented encryption algorithm, so that ...

Where is the godson innovation? What's the point?

See GODSON contract MIPS, wrote a "Godson contracted MIPS independent property rights CPU nuclear strategy failure", did not expect to be Sina pushed to a significant problem, in fact, old Yao only want to use the GODSON contract MIPS to explain the national decade to push independent intellectual property rights CPU nuclear strategy error, as for godson old Yao think the country invested heavily and not wrong, See the Internet so-called experts, reporters to godson blindly accused, old Yao poured some ideas do not spit unhappy. One, godson has no infringement? ...

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