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Posts Tagged ‘Network’

Network Address Translation on Cisco Packet Tracer

This video shows my home network switch, my home server, and a client computer. You are going to ask me where is the damn server, and I am going to say that it is on the roof. Yes, it is true. It is there because of noise and security… and because I do not have space inside the house. The server is running Windows 2003 Enterprise, x64. It is a Core 2 Duo E8400, 4GB of DDR2 RAM, 4x 500 GB SataII 10K HDDs, Gigabit Connection… It provides the following services: DNS Server DHCP Server WINS Server Domain Controller (AD) Torrent Server File/Storage Server GeoVision Security Server Backup Server 2x Websites (Torrent and GeoVision) Printing Server As you can see, it is my house`s heart. Therefore, all the network and server runs 24/7 and has a 3 hours No-Break for power failures. Average Daily CPU Usage: 41% Average Nightly CPU Usage: 36% Current Uptime: 186 Days It is running since August 2009, and so far it had crashed just one time… Moreover, the switch has 2x Gigabit Connection Ports, witch are connected to the server and the Wireless antenna. All other ports are regular 100MB/s connections. There is about 6 desktops and 3 laptops, witch are connected to the network, accessing files and camera recordings, downloading, surfing the web and stuff like that. Besides that, I aways access my cameras when I am traveling. Hope you enjoy it!

Twincling Video Tutorial (TVT) on how to verify if your network configuration is setup correctly.

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The Astak CM-IP700 IP Camera (Astak Mole Camera) . Available at PSICOMPANY.COM. Call 1-800-826-2907…. For Astak CM-IP700 IP Camera, and Mole Camera review and information: www.psicompany.com www.psicompany.com The Astak CM-IP700 Network Camera can record at 30 FPS while utilizing H.264 compression. The Astak CM-IP700 IP camera features pan and tilt control, wireless G networking, nightvision, and a built in SD Card DVR. Available at PSICOMPANY.com. Call 1-800-826-2907. Features Include: -Remote Pan/Tilt control -Built-in 15 IR LEDs to aid nighttime vision -Alarm function with motion detection -Support wireless network (WI-FI/802.11b/g) -Powerful high-performance programmable media processor and high-speed video protocol processor -Adopting optimized H.264 video compression algorithm to easily implement low-bandwidth network transmission of high-definition images; -Supporting simultaneous browsing of a maximum of 10 users; -Embedded Web Server to facilitate users to implement real-time front-end monitoring and setting management by a standard IE; -Providing an SD card slot to facilitate local image storage; -Supporting dynamic domain name resolution, as well as LAN and Internet (ADSL, Cable Modem) -Supporting multiple network protocols: HTTP, TCP/IP, UDP, STMP, DDNS, DNS, SNTP, DHCP, FTP; -Network adaptation technology, supporting automatic video frame rate adjustment according to the network bandwidth; -Giving alarm in case of video loss or motion detection (settable …

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September the Singing Dog helps you get back on the ‘net. Which is kind of silly for YouTube, since you’re already there. But, she’s a dog, so go tell her.

September the Singing Dog helps you get back on the ‘net. Which is kind of silly for YouTube, since you’re already there. But, she’s a dog, so go tell her.

Watch the entire course at www.lynda.com In Mac OS X Server 10.6 Snow Leopard: DNS and Network Services, instructor Sean Colins introduces the networking services available in Snow Leopard Server. This course covers setting up a DNS server to provide network resources, using firewalls to protect systems against intrusion and to route traffic, using DHCP to automatically configure network settings for computers when they join a network, and accessing a network securely via a remote VPN (virtual private network) connection.

All this you can find at www.dipolnet.com Create your home computer network quickly and efficiently. Have you got access to an ADSL service? If so, you can easily connect and configure Wireless ADSL2+ (Annex A) Router TP-Link TD-W8901G. The router is integrated with 4-port switch (100 Mbps) allowing to connect (in total) four computers, printers, NAS etc., and with wireless AP (802.11b up to 54 Mb/s) providing wireless connectivity (Wi-Fi) to many WLAN devices (laptops etc). With TP-Link TD-W8901G you get four in one: ADSL modem, router, 4p switch, and wireless access point. All this you can find at www.dipolnet.com

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Watch the entire course at www.lynda.com In Mac OS X Server 10.6 Snow Leopard: DNS and Network Services, instructor Sean Colins introduces the networking services available in Snow Leopard Server. This course covers setting up a DNS server to provide network resources, using firewalls to protect systems against intrusion and to route traffic, using DHCP to automatically configure network settings for computers when they join a network, and accessing a network securely via a remote VPN (virtual private network) connection.

I have: a Netgear FS524 24 port ethernet switch loads and loads of cable 2 servers 6 client pc’s 1 belkin hi speed adsl router 1 plusnet router 1 firewall pc (not showed in video) If you like what you see remember to subscribe to see more and go on my site at bit.ly

See our entire index of CompTIA Network+ videos at www.FreeNetworkPlus.com – Packet switched WAN networks are the latest technologies in wide area communication. In this video, you’ll learn about ATM, ADSL, MPLS, cable modem, and many more packet switched technologies.

This video shows you what I have step-up as on my network using two ESR-9850 one the man DHCP Router and the second is the Mix mode wireless G/N hardwired wireless access point. This is a real-time simulation of the network working with packet instructions and data being sent and received from the each packet nodes (devices) on the network. Note: You’ll see reference to Linksys WRT310n, only the model was used for ESR-9850. Visit my forum: tipstir.the-talk.net

Setting up Linksys router WRT-54G internet access policy. This is an example of “off early” on school nights for my kids: deny days: Sunday through Thursday deny from 10:30pm to 11:55pm deny from 00:05am to 6:00am (don’t use 00:00am) (there is a period there from 11:56pm to 12:04am where the internet comes back on but they are not aware of this and it doesn’t matter because they are asleep anyway) So per the example above, the computer will be denied internet on each school night (Sun. to Thur.) from 10:30pm until 6am the next morning. Make sure to “Edit List of PC’s” You have to make sure you get the right IP address of the computer you want to deny or you can just use the MAC address instead. You can learn how to find the MAC address of the computer by going here: www.wikihow.com IMPORTANT: Go to the Linksys administration page by typing 192.168.1.1 and If the DHCP is enabled on the Basic Setup page then use the Mac address of the computer you are trying to deny instead of using the IP address because the IP address will change frequently. Enter the Mac address in the “Edit List of PC’s” section. You can also control more than one PC by entering the Mac address for each computer you want to control access to.

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www.solarwinds.com Learn why SolarWinds Head Geek, Josh Stephens, still holds a torch for 5 classic tools included in Engineer’s Toolset. See how Watch It, MIB Browser, WAN Killer, IP Network Browser, and Switch Port Mapper save valuable time when troubleshooting network issues!

www.solarwinds.com Learn why SolarWinds Head Geek, Josh Stephens, still holds a torch for 5 classic tools included in Engineer’s Toolset. See how Watch It, MIB Browser, WAN Killer, IP Network Browser, and Switch Port Mapper save valuable time when troubleshooting network issues!

Setting Up a Home Network: For TwonkyMedia server This video shows basic instructions for how to set up a home network and router. We address the terms associated witht he router, as well as the firewall questions that you may have withTwonkyMedia. TwonkyMedia is a media server and management software. TwonkyMedia enables you to stream music, photos and videos to devices throughout your home. For a free trial, visit www.TwonkyMedia.com

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www.solarwinds.com Hear why this network engineer relies on our Engineer’s Toolset to troubleshoot network issues. Plus, hear which of the must-have tools is his favorite and learn how he diagnosed a network slowdown resulting from router interface errors.

This attack targets the client by making an access point with the same attributes as the one which is stored in the WIFI settings of the OS Note that I had to keep on disconnecting the fake AP in order to force the client in to rejoining the network as the packet flow stops if I don’t do that This happens even if the firewall is disabled on the client Perhaps setting up a DHCP server can solve this problem This will be tested in the future For more information, please check the following link: www.aircrack-ng.org

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Work in progress… Started building case, Red plexi from eStreet plastic. Really nice stuff to work with. Yes there is masking tape holding some parts in, still waiting for IPS Weld-on #3 glue! Tough to find locally. Uses Arduino+Ethernet Shield. DHCP Client and Time/NTP working. Cycles thru 24-hour time, Day of week, Date, and UNIX Time on red 7-Segment Display, and displays 24-hr time on the green matrix.

In case you did not see my previous server room video here is an update to the old video: www.youtube.com In this update video you will see that we moved part of our server infrastructure around in the server room, as we are planning to move this equipment within the next 60 days to a new server room with better air conditioning and better power conditioning. This old server room is very noisy and gets very hot and does not have space to grow, The new server room alone is costing $50000 for the air conditioning and power configuration alone. Our DSL line is a 10 Mb high-speed internet connection, We have 12 servers, of which you only see 8 servers here. The other servers are in other locations due to lack of space. There are 3 Mac servers, and the other 9 are Dell brand running Windows 2003 servers. They run specialized functions such as providing DNS, DHCP, print server, file server, mail server, data-backup, data base server, Mac Services, web server, ad/domain controller & ad backup, restore images. In addition, we are installing a wireless controller and new WAP access points to cover 6 floors and gigabyte network switches, with a total cost of over $150000 so it is not cheap. And that does not include the additional new dual cpu MACS that we are acquiring for the new library and new computer labs. see: www.youtube.com I will do an update to show the imaging of the new iMacs with 20″ display monitors, they are NICE and very fast!! see reimaging the hard drive on 200 …