The main 2 basic practical applications, mainly related to the ban Ping (IPv4) and the prohibition of UDP, that is, the use of the server to prevent hackers to outsource DDoS attack content.
First, if there is no iptables prohibit ping
echo 1 >/proc/sys/net/ipv4/icmp_echo_igore_all #开启echo 0 >/proc/sys/net/ipv4/icmp_echo_igore_all #关闭Second, the use of iptables rules to ban ping
Iptables-a input-p ICMP--icmp-type 8-s 0/0-j DROP
Third, using the Ip
CIO management note: "siyou" IT staff from: conanpaul [added to my favorites] is a popular explanation of whether enterprise employees are "people-oriented, "The right person should be in the right position at the right time", that is, personnel-position matching. The problem is that enterprises must use "appropriate people". What kind of talent should they define first? What kind of employees do CIOs need to think about? What kind of employees are us
approval, printing and management.3) variety of display effects and methodsProvide a good experience, rich and varied report results, and support PC-side, mobile, and large-screen way to display.PC-SideMobile sideIntegrationLarge screen Display effect4) easy to maintain report makingRelying on Finereport and Finebi strong report production capacity and convenience, whether technical personnel or business personnel, can quickly produce reports. It can not only compensate the lack of the report i
When it comes to the 80 s, people often think of words like youth, entrepreneurial myth, and fear. Indeed, compared with people of other ages, today's post-80 s distinctive and arrogant personality have left a deep impression on the world, and have caused many topics, or even a lot of opinions.
Due to work characteristics, there are usually more post-80 systems in the Information Department. Therefore, many CIOs have to deal with these post-80 employees. How to lead this personal Group natur
Where does CIO's enthusiasm come from? There must be enthusiasm, motivation, and passion for daily work. Only in this way can we maintain efficient work efficiency. But the fact is that not everyone can find the beginning of their career. There is such a woman who has a steady stream of enthusiasm for it. According to her, her passion stems from the family, which was inspired by family businesses. When she does not go to school, she will be busy with her automation and lighting design business
factories generally little profit or profit, the factory in 2015 to achieve a profit of more than 10 billion.After 5 years of complete ERP system coverage and the successful application of many "technology", ZHANGGP is leading his team to research the internet of things and the application of big data, through on-line monitoring of production devices, pipelines, valves, meters, etc., to analyze the large amount of data collected, In order to optimize the whole process of chemical plant in the c
, informatization is a "top-notch + CIO" project. If the information supervisor mechanism is established, beikai's information system will continue to develop healthily, and information resources of various departments will be well integrated and applied, BEI Kai's informatization work efficiency will be greatly improved. Shi Shaohui believes that the Information Authority is currently a "Technical functional department" and involves limited "manageme
The security outsourcing usually refers to the enterprise's information security business through the way of outsourcing completely or partially to the third party service provider to complete, this kind of information security Service Way has
With the increasing attention to global warming, it is being named "Penguin killer" while bringing about information civilization. The new wave of green it is coming to us. Whether it is from the practicality of the information system, from saving
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Today, enterprises are making larger and larger investments in increasingly complex IT infrastructure and application services. Data shows that the average IT spending of Fortune 500 has reached 0.3 billion million USD.To clearly understand the
A good article must be noted down and read more.
About 10 years ago, I worked as a small technical manager in a large joint venture. Once, a good friend of mine asked me to help his relatives-a young girl who just graduated from college to find a
In view of the current fierce market conditions and disputes in the ERP industry, when implementing ERP projects, enterprises must follow a reasonable approach to make rational and pragmatic selection decisions.
1. analyze requirements and clarify
Q: first, the origin of a project should be the project application form. When you are working on a project, you propose the project requirement book based on the requirements. And how did you prepare this project requirement book? And let your
what is archiving.
When should you apply it? What is the best way to implement it. These are the problems that CIOs are facing right now, and these are the issues that this article is going to look at.
what is archiving.
Data archiving is the
"basement ". The reporter investigated and analyzed some of the audience points of Guan CIOs at various layers.
What does a CIO do?
CIOs are a new type of people who promote social informatization and popularize information applications.
CIO is a senior manager responsible for information resources and IT infrastructure of enterprises. Information resources are composed of data, information, and knowledge
company's network, servers, data center inspection and daily maintenance. Mr. A found that, in most cases, IT engineers are busy at the customer's site and seldom work at the station. However, the telephone voices at their respective stations are always one after another, almost uninterrupted. If a company experiences network disconnection, a large area of viruses, and the need to upgrade software in a unified manner, it is even harder to work overtime. The same is true for O M personnel from
Programmer magazine: How small companies build middle-level technologyLiterally, the CTO (Chief Technology Officer, Chief Technology Officer) has three meanings. First, the scope of work is the technical department; second, the nature of work is the manager of the technical department; and finally the top manager of the technical department. From these three levels, we can clarify the main responsibilities of CTO: to manage middle-level managers in the Technical Department to meet the management
By Michael Poulin on January 19,200 9 pm0 0 vote 0 votes
The last issue of Oracle magazine (Vol XXIII, ISS. 1) mentions a set of Oracle products running on Amazon's Elastic Compute Cloud (EC2 ). this is a great news. now, developers need just a few minutes to become "Up and running" on Oracle platform for developing small and large projects, for prototyping and testing instead of having their own expensive testing hardware and software environment. this solution is even suitable"For MERs mers wh
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