Update-alternatives is a tool dedicated to maintaining system command links in Linux systems, which makes it easy to set which command to use by default, which software version, for example, we have both open jdk and Sun JDK Two versions installed in the system. And we want the system to use the sun JDK by default, what should we do? Through the update-alternatives can be very convenient to achieve.To view
Word, tool update-alternatives is the function of the management system under the similar function of the symbolic link, the way is to have a similar function of the program, not directly call the program, but with a unified symbolic link to call, as to the symbolic linkWhich of the similar function programs is pointed to, is configured and managed by the tool update-alternatives.It's very abstract, so let's take an example and see what's going on nat
Alternatives and update-alternatives seem to be the same tool (different for each Linux distribution), so here's an example of update-alternatives. Update-alternatives is a very useful tool in Linux, not only in the Debian series, but also in the Redhat series.Linux has grown to today, and there are so many available s
At the end of the 2016 Gartner Security and Risk Management Summit, the 2016 Ten Information Security Technology (HTTP://WWW.GARTNER.COM/NEWSROOM/ID/3347717) was released. The 10 major technologies mentioned here have been described in detail in previous reports. The 10 major technologies are:1) Cloud Access Security agent (CASB): CASB equivalent to an application proxy security gateway, securely connect users and multiple cloud service providers, bel
Gartner released the latest magic Quadrant report, and Microsoft took the lead in the database market (compiled from TechRepublic ),
Gartner, a well-known research institution, released the latest 2015 magic quadrant Research Report on database management systems. The report shows that Microsoft, Oracle, and AWS are the three leading providers in the database market.
This report provides detailed analysis
SAN francisco–august 15, 2016– Splunk Inc. (NASDAQ:SPLK), provider of the leading software platform for real-time operational Intelligence, today Announ CED It has been named a leader in Gartner's Magic Quadrant for Security information and Event Management (SIEM) * for The fourth straight year. Splunk is positioned as has the furthest completeness of vision in the leaders quadrant. Gartner evaluated the Splunk security portfolio, including Splunk Ent
July 20, 2015, Gartner released the 2015 annual Siem Market Analysis Report (MQ).650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/70/07/wKiom1WvnGnS6N5OAAE8wbQPrQ4610.jpg "title=" 11.jpg "alt=" Wkiom1wvngns6n5oaae8wbqprq4610.jpg "/>Compare 2014:650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/37/BF/wKiom1OuLrGS8jgeAAD_XIFvuJ0205.jpg "title=" Gartner_siem_2014.png "alt=" Wkiom1oulrgs8jgeaad_xifvuj0205.jpg "/>As you can see, Splunk h
. According to the survey, 51% of CIOs are worried that the rapid arrival of the digital flood will be faster than they can cope with, and 42% of CIOs feel that they do not have the talent to face this future.Mr. Dave Aron, Vice President and Senior Researcher at Gartner, said: "In the increasingly digital world, if CIOs want to help their businesses maintain close ties with public institutions, 2014 will be a year of significant change."The global CI
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Guide
David Cearley, vice president and senior researcher at Gartner Research, a market researcher, David Cally the top ten strategic technology trends predicted by the agency in 2017 at a Gartner seminar in Orlando, the Forbes magazine reported. What he calls "strategic technology" refers to technologies that have significant potential for subversion over the next 5 years. He also noted
In August 21, 2014, Gartner released a new Siem Report: Overcoming common causes for Siem deployment failures. The author is Oliver, a newcomer who has just jumped from HP to Gartner. He is currently in a team with Mark niclett.
The report provides six common causes for the current Siem deployment failure:The plan is not weekly, the scope is unclear, the expectation is too high, the noise is too high, the s
Secret Gartner magic quadrant for Data Center Outsourcing (1)
The server's profit drops by double digits each year, which has exceeded the rapidly growing number of data center clients. This trend led to a loss of $2014 for the world's largest Data Center Outsourcing and infrastructure utilities provider in North America in 1.2 billion.
This year, the global market and the North American market are expected to achieve revenue of US $79.2 billion and
Introduction
In the computer field, algorithms are an eternal topic. Even if you just put out all the books on algorithm entry, the Chinese and foreign books can even fill the entire Tiananmen Square. But there are still a few of them that are so different. This book is one of them.
This book is a programmer's friend. After many years of work, are the concepts familiar to you, such as quickrank, hackman coding, and KMP, fading into non-connotation nouns in your mind?
This book is a mentor to stu
On October 11, the top 10 information security technologies were released at the Gartner security and risk management summit.
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The top 10 technologies are:
1) Cloud Access Security Proxy: it is placed on the border or the cloud's pep (policy execution point), the current hot
preparation is important for achieving high-value data discovery.Smart Data Discovery will expand the user base to provide users with insights and data interpretation.Cloud bi will evolve as online applications evolve, and will evolve as data becomes more important to the cloud.Streaming Data. Streaming data analytics is becoming increasingly important for many customer-facing businesses.multistructured Data Analysis. This is also an important direction.Embedded BI. Embedded bi, especially mobi
1.2 profound impact of Gartner Definitions
Gartner1990The "function checklist" listed in the annual study report is still of great significance. For example.
The first requirement of the function ChecklistERPThe system must be able to adapt to different types of discrete, process, and distribution, that is, covering various types of manufacturing.
next we propose ERP graphic methods should be used to handle and analyze various
Given a main string (in the case of s) and a pattern string (substituted by P), we need to find out where p appears in S, which is the pattern matching problem of the string. Knuth-morris-pratt algorithm (KMP) is one of the most common algorithms for solving this problem, and this algorithm is based on Gartner (Donald Ervin Knuth) and Vaughn Pratt conceived in 1974, the same year James · H. Morris also designed the algorithm independently, and eventua
update-alternatives--Management soft Connect/Word linked (Symbolic links)
Command format
update-alternatives [Options] Command
Detailed description
Update-alternatives can be created, deleted, repaired, soft-connected, and can display information about existing soft links, all of which constitute the Debian alternative system (
Ubuntu update-alternatives (soft connection management), ubuntualternatives
Update-alternatives-manage soft connections/character links (symbolic links)
Command Format
Update-alternatives [options] command
Detailed description
Update-alternatives can be used to create, delete, repair, and soft connections. It c
Alternatives is a powerful command under Linux. Can only be performed under root permissions. If there are several commands in the system that are very similar, but cannot be deleted at will, then you can use alternatives to specify a global setting.
Alternatives is often used to install multiple versions of the same software in the same system. For example, in
Alternatives is an important version management tool under UNIX, which was first seen in the Debain system, because its powerful usability makes it a large number of porting in various UNIX environments, And we probably most often use the Java OPENJDK Toolkit in the usual version of the conversion, and in the alternatives implementation of multi-version is the replacement system using the command link to im
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