This section describes the running and structure of OOM killer.
The out of memory (OOM) killer function in Linux serves as the final means to ensure the memory. After the system memory or swap zone is exhausted, it can send signals to the process and forcibly terminate the process.
This function can ensure that the memory processing process is repeated even if the memory cannot be released to prevent system
At present, broadband routers and wireless routers are becoming increasingly popular in the household and small and medium-sized enterprise markets, and readers will find that both broadband routers and wireless routers, each of them has four adaptive RJ45 lanports and at least one adaptive RJ45 WAN port. What is the difference between a similar port and a vswitch? What are their features and how to use them? What are their different uses? In this art
Offline data and remote users may overload your Wan egress. To prevent network overload, some WAN optimization solutions are available.
Faced with the increasing network load, user scale, and real-time transmission applications in the data center, it is increasingly difficult to keep WAN lines fast and reliable. The strong demand for
In general, in the face of the purchase of Multi-WAN routers, many business friends only pay attention to the word "multiple" in the Multi-wan, but they do not know that there are many kinds of Multi-Wan routes, some or even completely different things. In addition, the function configuration of Multi-Wan routing also
The growing number of Enterprise data and rich media content is straining the capacity of LAN and WAN. However, it is very expensive for the WAN to accommodate these new requirements. This fact drives the emergence of a large number of new WAN optimization technologies. These new technologies squeeze more capacity from WAN
This article mainly introduces the problems encountered in the selection of Dual-WAN port broadband routers, and gives a specific introduction to IP balancing. I believe this article can help you.
Simply put, the dual-WAN router has two physical WAN ports for Internet access, while the common Broadband Router only has one Wan
The choice of the common LAN access Wan method, the LAN access Wan method, as the name suggests, the choice of LAN access Wan is to intervene in the internet. This article also introduces more popular related knowledge in the market.
This topic is to discuss how a LAN can access the WAN Internet after the LAN is built.
With the rise of the wireless network age, vrouters must keep pace with the times and adapt to the application of new technologies. What features can a multi-WAN router make better use? The multi-Wan VPN Broadband Access Router is generated when the application needs it. In fact, the multi-Wan Broadband Access Router originated from advanced countries in Europe a
ADSL, such as broadband access because of its economic and adequate, that is, cost-effective advantages of many small and medium-sized enterprises favored. With the development of enterprise business, especially for some medium-sized enterprises and enterprises with high dependence on network, they will consider bandwidth expansion or planning large bandwidth access. Multi-line broadband access is often its first choice, there will be some enterprises will choose "optical fiber +ADSL" and other
Many people may not have a special understanding of the Multi-Wan port Broadband Router. Here we will mainly explain the performance of the Multi-Wan port Broadband Router and the brand of the Multi-Wan port Broadband Router, the market demand is large and in the initial and intermediate stages of development, and it is doomed to the emergence of multi-brand and
With the development of China's routing technology, emerging technologies are emerging. The WAN routing technology is one of them. Here we mainly introduce the development history of the WAN routing technology. Since the company has promoted the application of multi-Wan routing technology, the "Xin Xiang" enterprise-level broadband routers and dedicated Broadband
Recently, some of the online memory-intensive applications are more sensitive. At the peak of the visit, the occasional kill drops, causing the service to restart. The discovery is triggered by the mechanism of Linux out-of-memory Kiiler.Http://linux-mm.org/OOM_KillerOom Kiiler will kill the memory in turn when the memory is tight, the process is high, send signal (SIGTERM). and recorded in the/var/log/message. There will be some records such as pid,process name. CPU Mask,trace and other informa
Since the company launched and promoted the application of multi-Wan technology, the "Xin Xiang" enterprise-level broadband routers and dedicated Broadband Router series products have been recognized by the majority of users. With its strength and extensive market practices and meticulous research, haofeng has made another breakthrough in the Multi-Wan technology and started to upgrade the fourth-generation
With the development of China's routing industry, dual-WAN Port Routers are also widely used. Here we mainly introduce a cost-effective dual-WAN port router. Currently, many Internet cafes use dual-WAN Port Routers. The dual-WAN port router is very familiar to Internet cafe operators. Simply put, a dual-
There are many things worth learning about the WAN port router technology. So I studied the WAN port router technology application examples and shared them here. I hope they will be useful to you. The earliest Broadband Router solves the IP sharing problem, that is, to allow multiple terminals in the internal network to share a broadband egress. The core technical application is the simple NAT-network addre
Now the general family Internet use ADSL telephone line more online, and the home generally have several computers, so how to make a few computers at the same time Internet. This is to use the broadband router, in general, there are several cable sockets on the broadband router, these network cable sockets on some labeled WAN, and some network port labeled LAN, in the end what is the meaning of it. And what difference does it have. Please look down.
F
In the daily maintenance of WAN, the most headache for network administrator is that the WAN line occurs when the fault is broken.
Because the WAN line involves the user of the end, the terminal line operator, the terminal line operator and the end user four links, the intermediary through the network communication equipment, causing the line when the fault is a
Laboratory Equipment:1 routeros5.24 Version Router1 Cisco 2960 Switches2 100M Telecom Bandwidth: 1 downstream 100M Uplink 8M, the other line 100M upstream 4MExperimental Purpose:Overlay multiple internet broadband to increase the company's network demand. In this experiment, there are only two broadband, it is possible to reach hundreds of broadband access, then use a network card access is not very realistic. Use the switch extension to increase the bandwidth access portExperimental steps:One:
This is a very detailed article on Dual-wan router configuration techniques. In the four-step explanation, you can instantly master the techniques for setting dual-wan routers, this setting method is often used.
Master talk about dual-wan router settingsMany Internet cafes use the dual-WAN port access design of the dua
The difference between the WAN port and the LAN port on the router is that most homes use ADSL telephone lines to access the Internet, and there are usually several computers in the home. So how can we make several computers access the Internet at the same time? This requires a Broadband Router. In general, there are several network cable ports on the Broadband Router. Some of these network cable ports are labeled as
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