Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Learn Networking and Related ====== * PowerCert Animated Videos: https://www.youtube.com/channel/UCJQJ4GjTiq5lmn8czf8oo0Q/videos ====== Solution - Use OneDrive 5GB as mountable network work ====== * https://www.youtube.com/watch?v=NI0g0gwzRpY * note, the onedrive/outlook acc should not have 2-step authenication * step: * login in onedrive https://onedrive.live.com to check your "cid" number in your url * then, in your computer, map network drive, and put address as https://d.docs.live.net/YOUR_CID_NUMER * then, when pop up the login, just type in login as like in browser ====== Problem - Router Give My PC 169.254.xxx.xxx IP ====== * Normally, in a local network setup like Home WiFi network, it gives every device a local IP address, like 192.168.1.xxx; * Problem: If your PC are in 169.254.xxx.xxx situation (check with "ipconfig" command in cmd app) during network setup, you can't access your router at its default 192.168.1.1 address in internet browser * Solution: in order to access 192.168.1.1 address, you may need to manually set your PC IP to like 192.168.1.xxx; here is the steps: - Open Control Panel > Network and Internet > Network Connections to see the actual Ethernet port/WIFI connection that you are using - Right click on the your current network connection icon, choose property > check "internet Protocol Version 4 (TCP/IPv4) Property - Instead of letting IPv4 auto get your IP, you use manual entered IP address: 192.168.1.x (e.g. 192.168.1.5), subnet mask: 255.255.255.0; empty default gateway - now you should be able to access your Router by either Ethernet or WIFI at 192.168.1.1 ====== Problem - Router can't be accessed using default password ====== * press and hold reset button at router back for 5+ seconds to reset router, use Wifi or Ethernet to access 192.168.1.1 page in internet browser. (search internet for default password for your router model) ====== Can't Map a Network Drive ====== * make sure the computer which is sharing the folder has a username with password, * then, in other computer, map that network driver with <nowiki>"\\PC_Name\path_to_the_fodler"</nowiki>, with credential as "PC_Name\user_name" and "Password" * additional note: make sure setting the folder permission with "full control" or "change" if you want end user create or modify on that folder, as default one is read only. ====== 1Gb Ethernet Direct Connection ====== * crossover wiring type ethernet cable is a part of history already, nowadays all ethernet adapter ports support Auto-MDIX (automatic medium-dependent interface crossover) * which means: the port interface automatically detects the required cable connection type (straight through or crossover) and configures the connection appropriately * wiki ref: https://en.wikipedia.org/wiki/Medium-dependent_interface * Thus, you just need a cat6 cable or better, (cat5 is part of history as well and not available commonly) to connect 2 computer ethernet port directly. * The Direct Connection Ethernet adapter setup (**Note**: if win10 interface hard to set ip, then just commandline admin mode faster) * on that direct Network Connection property, setup IP4 connection IP manually, (cmd "Lighting" is my ethernet adapter name when you cmd ipconfig) * 1.1.1.1 on one computer with mask 255.255.255.0 <code>netsh interface ip set address name="Lighting" static 1.1.1.1 255.255.255.0 1.1.1.1</code> * 1.1.1.2 on other computer with mask 255.255.255.0 <code>netsh interface ip set address name="Lighting" static 1.1.1.2 255.255.255.0 1.1.1.1</code> * 1.1.1.3 on other computer with mask 255.255.255.0 <code>netsh interface ip set address name="Lighting" static 1.1.1.3 255.255.255.0 1.1.1.1</code> * and map network drive with that direct ip address like, access \\1.1.1.1\myShareFolderName on 1.1.1.2 computer * For win10 auto change ip setting after restart, you need to go Windows 10 setting > Network > that Adapter: IP settings set * ip assignment: manual, ipv4: 1.1.1.1; subnet length: 24; gateway: 1.1.1.0 * if auto configure still kick back, go regedit admin right: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{GUID}, you can check your ip setting to locate which guid is the one you want, * then, add a DWORD "IPAutoconfigurationEnabled", value as 0 ^ 1Gigabit speed ^ 125MegaByte/s ^ | real small files | 61MB/s in direct connection | | large 20GB file | 128MB/s in direct connection | | through a cheap wifi router Ethernet port | 12MB/s | ====== 10Gb Direct Connection Setup ====== * 10GbE speed = 1250MB/s, and setup is similar as 1GbE setup, but the hardware needs to meet the spec to achieve it. * First, computer needs to have a 10Gb port. * there are same Ethernet cable based ports network adapters and cable * there are also copper wire cable based ports and cable (sfp+) (which is older than those new Ethernet port option) * there are also other solution, which require driver setup properly and configured properly * Cheap option * sfp+ copper cable and sfp+ network adapter (normally around 60SGD in 2nd hand, cable around 3 meter most time) * old generation of intel X540-T1,T2 10Gb Ethernet adapter (90sgd in 2nd hand) and standard cat6 Ethernet cable (6sgd for 5meter new) * new generation of intel X550 10Gb Ethernet adapter (???sgd in 2nd hand) and standard cat6 Ethernet cable * brand new Asus XG-C100C 10Gb Ethernet adaper (99USD new) * https://www.youtube.com/watch?v=8aqzd_jNj_s ^ adapter / NIC (network interface card) ^ | LR-link tehuti tn4010b0 10gb single port card | pice 3.0x4 | 90 sgd | | Asus XG-C100C | PCIe 3.0x4 | 160 sgd | | AQtion AQN-107 | pcie 3.0x4 | 150 sgd | | Intel x550-t1/t2 | PCIe 3.0x4 | 250-500sgd | | Intel x540-t1/t2 | PCIe 2.0x8 | 100-120sgd used | ^ switch ^ | netgear xs505m | 4x 10GbE | 690 sgd | | netgear xs708ev2 | 8 x 10GbE | 920 sgd | | asus XG-U2008 | 2x10GbE + 8x1Gb | 310 sgd | ^ cable ^ | cat6a | 10Gbps (100m) | | cat6 | 10Gbps (55m) | | cat5e | 10Gbps (30m) | | cat5e | 1Gbps (~) | | cat5 | 100Mbps | * 2.5G ethernet as inbetween solution of 1G and 10G: * https://www.tp-link.com/sg/business-networking/unmanaged-switch/tl-sg108-m2/v1/ * 10G option: * https://www.tp-link.com/sg/business-networking/unmanaged-switch/tl-sx1008/v1/ * full list of 10gb netgear switch: http://info.netgear.com/NA_10g * cheap list of 10gb switch: https://nascompares.com/2018/01/19/cheapest-10gbe-switches/ * cheap list of 10gb nic: https://nascompares.com/2017/12/14/cheapest-10gb-1-port-pci-express-network-cards-rj45/ * https://planetechusa.com/blog/ethernet-different-ethernet-categories-cat3-vs-cat5e-vs-cat6-vs-cat6a-vs-cat7-vs-cat8/ * https://www.youtube.com/watch?v=8aqzd_jNj_s * Understanding Switches: https://www.youtube.com/watch?v=9yYqNqTNnqI * Networkwork optics overview: * 1GB SFP - 100GB Optics: https://www.youtube.com/watch?v=7KGFWGbdfps * https://item.jd.com/28030017748.html * Chinese Name: 万兆以太网 * Intel X540-T1, X540AT2 ([[https://world.taobao.com/item/541750901793.htm|link]], [[https://world.taobao.com/item/531690888969.htm|link]]) ====== Networking Solution ====== * Hub, Switch, & Router: https://www.youtube.com/watch?v=1z0ULvg_pW8 * Hub sends signal to all ports * Switch send signal from one to another ports * Router connects between networks (inter-network), while hub and switch create a network * switch and networking: https://www.youtube.com/watch?v=_VRToy-9SD0 ====== Port Number and Port Forward ====== * ports, router, ips: https://www.youtube.com/watch?v=2G1ueMDgwxw **Ports** * port numbers are often associated with certain protocol, application, type of usage * like port 80 for http, 20,21 for ftp, 443 for https * port number are in range of 0-65535 ====== Local DNS Server ====== * router setup example for dns database * https://www.linksys.com/ca/support-article?articleNum=164490 * example spec: https://www.hachi.tech/product/0745883632411/Linksys-LRT224-Dual-WAN-Business-Gigabit-VPN-Router * windows dns check command <code batch> ipconfig /all nslookup </code> ====== Samsung TV and Android Connection ====== * Samsung App store, install SmartThings. ====== Network Content Filtering ====== ^ wechat | | res.wx.qq.com | | up-hl.3g.qq.com | | cc.map.qq.com | | dldir1v6.qq.com | ^ wechat channel | | sgminorshort.wechat.com | | sgshort.wechat.com | | wx.qlog.cn | | dns.weixin.qq.com | | Web File Transfer | | wxapp.tc.qq.com | techwiki/network.txt Last modified: 2023/07/04 05:53by ying