New route D1 from time to time mobile phone special 199R6400 I'm 399, it's a good price.D1 Configuration2.4G 300M 5G 867m,1 Gigabit Wan port, 2 gigabit LAN ports, USB3.0 and 2.0 each, MT7621A dual-core processor, memory 256MB, Flash 32MB, body with 8G memory card.(due to factors such as wireless interference, USB3.0 is locked only to work on the USB2.0 protocol, by command echo 1 >/proc/usb3_en can turn on the USB3.0 function)R6400 Configuration2.4G 4
home directory does not have separate partitions, and the user home directory has generated data for multiple users[Email protected] ~]# lsblkNAME maj:min RM SIZE RO TYPE mountpointSDA 8:0 0 20G 0 disk├─SDA1 8:1 0 200M 0 part/boot├─sda2 8:2 0 5G 0 Part/└─sda3 8:3 0 5G 0 part/testSr0 11:0 1 7.2G 0 rom[Email protected] ~]# Ll/homeTotal 12DRWX------. 5 Hacker test 4096 19:42 HackerDRWX------. 5 Share test 409
5 monetization strategies of mobile edge computing (MEC), monetization of mec
Mobile edge computing (MEC) has five monetization strategies. In the past few years, cloud services have been unable to compute the large amount of data generated by mobile devices and provide meaningful analysis, this is true even at the speed of light. This is because the distance between the cloud and the device through the return operation causes delay, which is a problem that mobile edge computing (MEC) solves.
ME
not need to select the frequency band. The dingtalk C1 smart wireless router combines the 2G and 5g frequencies. The device can select the working frequency band based on the actual network conditions, it can better ensure the smoothness of user services.
If the administrator wants to configure and manage the devices, go to the management background in [Address Book]-[smart devices]-[smart office network]
Case background
Xiaoming family is a three-bedroom room, large rooms, more partitions, using a tl-wdr5600 dual-frequency wireless router. But there is a bedroom and bathroom signal is poor, mobile phone speed slow, watching video is not smooth. The following figure:
Heard that two wireless routers can bridge, do not pull the cable can amplify the wireless signal, xiaoming plans to buy a new dual-frequency router to bridge the amplification signal. Tp-link staff told Xiaoming, j
host or LPAR partition is made up of two disks, and the disk size requirement is no less than 146G.Four, the host file system requirements
Partition or Logical Volume
Mount point
Size requirements
Type
Use
/dev/hd4
/
JFS2
operating system
/DEV/HD2
/usr
6g
JFS2
operating system
/dev/hd9var
/var
5g
China Mobile C-ran 4th c: June 2018 Outfield Network verificationHttp://www.c114.net (2016/11/22-07:41)C114 News November 22 (Child month) 2009, China Mobile in the industry for the first time launched the 4c--"centralized, collaborative, cloud, green energy" C-ran Wireless access network concept.Seven years later, C-ran concept 4C 3 c--"centralized, collaborative, green energy" has gradually landed in the network, the 4th c--"cloud" also made great progress in the research. C-ran has been in se
data security, the disk area can also be expanded.
Ii. Create LVM
[Operating system:] Red Hat 6.3
[Related commands :]
Pvcreate: create a physical volume as pv
Vgcreate: combines pv into vg
Lvcreate: Create lv on vg
First, create VG.
In this example, create a 10g vg.
First, we need to create a 10G vi. We can use 10 1G or a 2G, 3G, or 5G pv.
In order to simulate, the disk partition is used here to simulate the hard disk to create the vg
First, prepare
Title: There are 10G integers in a file, ordered in order to find the median. The memory limit is 2G. Writing only ideas (memory limit of 2G means that you can use 2G of space to run the program, regardless of the other software on this machine memory consumption).
About Median: The number of positions in the middle after the data is sorted. The data is divided into two parts, one part greater than the number, and one part is less than the number. Position of median: when the number of samples i
channel, it is unclear)
2Mbps Transmission
Using the DQPSK (differential quadrature phase shift keying), a total of 4 phase carrier, each carrier difference 45 °, so that the information carried in the RF signal than DBPSK added a cup, each carrier represents two bit of data.The same transmission 01001101, DQPSK only half the time (the retention period of each carrier is constant)
5.5Mbps and 11Mbps
In DQPSK based on the use of CCK code, CCK coding there are two ways
There are three main types of broadband fixed wireless access technology, namely, the multiple-point distribution Service (MMDS), the direct broadcast Satellite System (DBS) and the local Multicast Distribution Service (LMDS) which is in the experimental stage. The first two are already well known, and LMDs is just emerging, and has recently become a popular broadband wireless access technology. LMDs is a kind of microwave broadband service, working in the 2
RESIZE2FS: Adjust the size of the Ext file systemWith logical volume LV usage: Resize2fs/path/to/lv_name 3G adjusts the logical boundary size of the LV to 3GI. Extending the logical Volume LV:(the physical boundary of the logical volume must be extended before the logical boundary is extended)lvextend physical boundaries of an extended logical volume-L [+]#/path/to/lv_name specifies the expanded capacity, + indicates a direct increase of # capacity on the current capacityNo + indicates that the
succeeded
This tl-wdr5600 wireless bridging (WDS) Setup completes, the wireless terminal connects the Zhangsan, the wired computer connects the main, the auxiliary router's LAN port to be able to surf the Internet. In the process of terminal movement, automatic roaming between main and secondary routers can be realized.
Pay attention to the problem
(1), 5G Wireless network can only connect with the 5G w
In the production environment of the EM check ADDM, recently always see increasing the size of the SGA recommended, the current SGA is 4G, decided to increase to 5G according to the recommendations.
Environment:Two-node RAC Environment, node 1 pdmcn1 node 2pdmcn2
Database PDMCN instance 1 pdmcn1 instance 2 pdmcn2
Oracle Database 10g Enterprise Edition release 10.2.0.4.0-64bit ProductionCRS 10.2.0.4.032G MemoryNote: modifying the SGA in a RAC environ
when we are testing or debugging, sometimes we will need to generate a size file, such as testing the storage system, you need to reduce the amount of disk space to 5G, the simplest way is to copy a 5G file, but from where to get files of such size, perhaps you think of a random file, It's a way to keep copying and finally merging, but with DD, you'll be easier and more flexible to implement .Let's introduc
When we are testing or commissioning, sometimes you need to generate a file of size, for example, when testing the storage system, you need to reduce the amount of disk space 5G, the easiest way is to copy a 5G file over, but where to get the size of files, perhaps you think of random find a file, non-stop copy, Finally, this is a way to do it, but with DD, you will be easier and more flexible to implement.
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