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  • Building a Social Networking website, should I have separate servers for certain parts of the site? [closed]

    - by Dylan Cross
    I have been working on building a social networking website, I'm pretty committed to this and I think I have something that could work out. I hope to be launching it January 1st, and so I have a question for server setup and such. Facebook has separate domain names/servers for their photos (and I don't know what else), so I would assume that by doing this it would help spread the server loads out. So I am wondering if it would make a very big difference in speed if I had my main server for basically everything, but had another server and such that the photos would be stored on and access them the same way that facebook does.

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  • Sharing files from Ubuntu to Mac

    - by seengee
    Hi, Running Ubuntu 10.04 in one office and we want a couple of Mac's in another office to be able to connect to shares on this computer. Want a fairly simple solution to this if one exists. Started looking at setting up a VPN using PPTP but it seems quite complicated. Also seen mention of VNC but this seems more related to sharing desktops and all i want to do is share a directory. Could i just install open SSH and have the Mac users mount a share over SSH using public/private key encryption?

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  • Enabling the log app on the WDTV

    - by Ariel Popovsky
    Just flashed the last WDXLTV firmware on my WDTV and it's working fine. I tried to config a Wifi USB adapter but couldn't get it to work. Dropped the log-saver.app.bin on the root of the stick but didn't find any log files after booting. What I'm doing is turning on the WDTV with the stick inserted (the stick is formatted with FAT32). Tried with the wireless-mod.app.bin required files and without any other file than the log saver. I can't get a log file anyway. All I want right now is to get the log file so I can debug the WI FI adapter.

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  • ICMP Data Field Modified - What does it Mean?

    - by Lucretius
    Normal ICMP Data fields are composed of a pretty standard 32 byte string of alphabet characters. abcdefghijklmnopqrstuvwabcdefghi I have captured a series of ICMP echo requests using WireShark with a modified Data field and I have no idea what it means. (Underscores represent spaces.) abcdefghijklmnopprstuvwxyzabcdefghi abcdefghijklmnoparstuvwxyzabcdefghi __abcdefghijklmnopsrstuvwxyzabcdefghi __abcdefghijklmnopsrstuvwxyzabcdefghi __abcdefghijklmnopwrstuvwxyzabcdefghi __abcdefghijklmnopdrstuvwxyzabcdefghi__ Note: The position of the "q" character The addition of "xyz" The addition of spaces before and after the payload When you look at the position of "q" horizontally it spells "passwd" which is a Linux/Unix command for changing a users password. Any ideas?

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  • Full speed internal switch bandwidth but per-port set external bandwidth?

    - by garg
    I am in an environment where all the machines are behind a switch that I don't have access to. Each ethernet wall port has limited bandwidth depending on how much has been paid for each port. The problem is that some people have 10Mbps connections and some have 100Mbps connections and this causes problems with local intranet file transfers and operating system/software deployments. Operating systems can take hours to be deployed if the machine is on 10mbps. Do you know if it is possible with most switches to set a rule that would limit bandwidth coming in/going out to an extranet, but keep full bandwidth if the packets are destined to go to a local machine? For example, the internet might be limited to 10Mbps, but internal servers would get gigabit speeds? Thanks

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  • What causes "All-in-one USB Card Reader" to create 6 drives that always appear in Disk Management?

    - by tim11g
    I installed a "All-in-one USB Card Reader" to read SD cards and other media. It has caused six new drives to appear in Disk Management with six new drive letter assignments. These drives and letters are always present, even when there are no cards in the reader. When unused, they are labeled "No Media". Why does this multifunction reader cause these phantom Disks to appear and consume drive letters? Every USB port can (and does) allow removable media to be mounted and assigned a drive letter, and the drive letter assignment "disappears" when the USB drive is removed. Why are these card reader's drives and letters staying allocated permanently? Is there anything that can be done to make the slots work like a typical USB drive? (The reader is in fact connected to USB).

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  • Mnemonic external IP

    - by Click Ok
    When diagnosing networking problems, I ping to: My local IP My gateway IP An external IP An external domain name Usually, when troubleshooting, the internet is unaccessible, then I need to remember an external IP address. I need any (easy to remember) IP address. By example, google ip is 72.14.204.147. Cool, but it's hard to remember... What external IP you use? Do you have an mnemonic external IP address, then will be easy to remember?

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  • File sharing from a cable connected pc to wifi connected laptop (windows 7 ultimate)

    - by Aiden Jones
    I have a one desktop running windows 7 ultimate connected to Ethernet cable. And I want to share folder to another wifi connected laptop (also windows 7 ultimate). Both machines are on the same home internet connection. I have tried to share folders by going to properties sharing advanced sharing permissions checked all the boxes to allow all but I don’t see any shared files on my laptop. I know it’s possible to share folders between two Wi-Fi connected machines but how can it be done when one pc is cable connected and other is Wi-Fi connected on the same internet connection.

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  • Cabling: What to keep in stock?

    - by pehrs
    I have worked a few different places, each one with a different solution, so I would like to hear your suggestions and ideas. I am looking at a situation with multiple server-rooms. We have a mixture of copper (both ethernet and telephone), multi-mode fibre and single-mode fibre. We have all types of connectors: RJ-11, RJ-45, LC, SC, FC, SMA and several I probably forgot about. We have a lot of people working in the area, and keeping track of cables is turning into a full time job. So, here are a the questions: What types and lengths of cable do you keep in stock on site? Do you make your own or buy pre-made? Adapters? Dampeners? How do you manage cable inventory? How do you label the cables? Any other tricks to stop this from driving me crazy?

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  • Remove Write Protection from USB

    - by Vasile Marian Falama?
    My flash USB is write protected and I've tried every possible methods I've encountered over the internet, to get rid of this. Accessing the usb is not working. Format from my computer, is not working. Clear attributes with DiskPart is not working (can't be cleaned, Current Read-only State is Yes but Readonly is set to false... With Disk Management, I can't delete the partition... Is there any other method... With a specific software or somehow? Edit : I tried this on Windows 8.1.

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  • private address in traceroute results

    - by misteryes
    I use traceroute to check paths on a remote host, and I notice that there are some private IPs, like 10.230.10.1 bash-4.0# traceroute -T 132.227.62.122 traceroute to 132.227.62.122 (132.227.62.122), 30 hops max, 60 byte packets 1 194.199.68.161 (194.199.68.161) 1.103 ms 1.107 ms 1.097 ms 2 sw-ptu.univ.run (10.230.10.1) 1.535 ms 1.625 ms 2.172 ms 3 sw-univ-gazelle.univ.run (10.10.20.1) 6.891 ms 6.937 ms 6.927 ms 4 10.10.5.6 (10.10.5.6) 1.544 ms 1.517 ms 1.518 ms why there are private addresses near the host? what are the purposes that these private addresses are used? I mean why they want to put the public IP behind private IPs? thanks!

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  • How can I access my music anywhere?

    - by musicfreak
    So here's the idea: I use multiple computers on an almost daily basis. I would like to be able to access my entire music library from any of those computers through the Internet. Is there a service or perhaps some software that would allow me to host my music "in the cloud", or in some other way access it from a different computer? I've searched for something like this and the closest I've found is the Media Player application found in Opera Unite, but that requires my home computer to be turned on at all times, which is less than ideal. I'm willing to pay, but not so much that I could just rent a private server for a lower price. Thanks in advance.

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  • How to throttle your own internet connection?

    - by darkAsPitch
    I am writing a website and want to test it's speed on slower internet connections. I have the unfortunate first world problem of downloading at 100mbps, how can I throttle my own computer's internet connection to 56kbps or 5mbps to give myself an idea of how my users might be downloading my website? EDIT: I am using Windows primarily but also have an ubuntu laptop if the answer is linux oriented.

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  • Snow Leopard and NAS share

    - by Andreas
    Hi, I bought a BlackArmor 220 from Seagate. When I start Snow Leopard the NAS shows up with its full name under shares. The problem is that when I click the NAS only a folder BA_Backup shows up, all the other folders, I created, don't. When I click the NAS, it says I'm connected as "guest". I mean I can connect by "Go to server" and additionally add the folders to the user startup objects, so they show up when I start my Mac, but when the NAS already shows up, why can't I configure it? Where can I change this? Thanks! Cheers, Andi

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  • Is it possible to redirect/bounce TCP traffic to external destination, base on rules?

    - by xfx
    I'm not even sure if this is possible... Also, please forgive my ignorance on the subject. What I'm looking for is for "something" that would allow me to redirect all TCP traffic arriving to host A to host B, but based on some rules. Say host A (the intermediary) receives a request (say a simple HTTP request) from a host with domain X. In that case, it lets it pass through and it's handled by host A itself. Now, let's suppose that host A receives another HTTP request from a host with domain Y, but this time, due to some customizable rules, host A redirects all the traffic to host B, and host B is able to handle it as if came directly from domain Y. And, at this point, both host B and the host with domain Y are able to freely communicate (of course, thought host A). NOTE: All these hosts are on the Internet, not inside a LAN. Please, let me know if the explanation is not clear enough.

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  • Correct way to set up office network - 8 workstations, a file server and a staging server

    - by naunu
    Our office had this old school windows 2003 domain setup, our server caught fire, and now we are looking to do it right from scratch. Here is what we need: 5 PC and 3 Mac workstations for web development, they will each have WAMP/MAMP setup on them, managed by their developers. We will have a file server for assets, and a LAMP server with an external IP for staging. Here is what we have to work with: 5 IP addresses, brand new PC file server with windows 2008 SE, D-Link DSS-16+ 16 port switch, belkin 5 port wireless router, cable modem with 4 ports. How I have it set up now (this is a temporary makeshift setup): Cable modem = LAMP server, wireless router Wireless router = Switch = All of the workstations and file server (setup as a workgroup). We have noticed our internet is very slow with us all plugged in to the switch, and the switch plugged in to the router. I am not positive, but I think it is because our router does not have NAT. We are also having problems with the MACs connection to the network drive - it keeps disconnecting. I want this done right, and we have a ~$600 budget to buy anything else we need. Does anybody have any advice for me? Should I set up a domain or workgroup?

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  • network latency, TCP and UDP packets

    - by user115848
    Hello recently my network has started to cause me lots of problems. I have a cable modem, connected to a tp-link router (with some port forwarding). Everything was working fine then i started to get lots of udp (port 53) "UNREPLIED" logs in the router. Now there are tcp UNREPLIED logs too. This is causing lots of latency and failed connections when trying to connect to different internet sites. Also, we run an openfire server for spark connections, and I believe its causing connectivity issues for some users who are trying to connect using Spark (some people connect fine, others don't). Please see screen shot below for packet logs. It has to be something internally, as I connected straight to the comcast modem and i was able to connect to the internet and various sites as normal. I tried to swap out the router with a different and got the same issue. I scanned both my internal dns servers for viruses or malware and it came up empty. Another anomaly is that when i try to connect to www.cnn.com, i get redirected to the different site. I scanned my own machine for hijacks. Not sure if this is related to the networking issue. Please let me know if you have any ideas for troubleshooting.

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  • Macs don't connect to wifi access point but PCs will

    - by Josh
    So, as a side project I'm going to try and figure out why the wifi APs in my building exhibit the following behavior: - They typically allow all types of computers to connect without issues - Sometimes Apples can't get an IP address but will still connect to the AP's signal - Less often, PCs can't connect to the wifi (same as above - yes signal, no IP addy) - Don't let Raiders fans on no matter the time of day! My first thought was that the DHCP leases were all taken up when the Apples would try to connect, and it was just their unlucky timing, but I would then try to log on with a PC that had a new, unleased MAC address and it would work... Could this be something to do with interoperability between an apple wifi card, and the APs? Different parts of the DHCP lease being taken up first? The fact that the Seattle Mariners might actually be good this year?? If this hasn't used up everyone's patience (with my crappy sports jokes), something else I could use some help with: - We don't have the model or type of AP - This is because there is no documentation available for them, and they literally look like small white boxes with no writing on them. Also, the company that installed them is out of business, so the situation might be that no docs will ever be on the way. -- Do you guys have any ideas on how to figure out what we have? Thanks as always for all the help, and I'm looking forward to the day when I know enough to start contributing back to the site, Josh

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  • Can two users both control a third machine simultaneously using Synergy?

    - by Reason
    I've been a Synergy user for some time now, as I use a PC on the left side of my Mac. My girlfriend and I both have our desks on each side of the other, and we'd like to know if it were possible for the both of us to control the PC in the middle, with our own separate mouse & keyboards. Here's a crude drawing of our setup (1) her pc (2) my pc (3) my mac Currently, 3 is running a synergy server, and 2 is running the client. But like I said, I'm wondering if there's a way for 1 & 3 to both control 2 with their own mouse and keyboard. I'd ~love~ to have it set up where we could go even farther, and have both of our mice & keyboards able to control all 3 computers at the same time, for moments when we need to click or press keys for each other. But that seems a little too much to ask! Any thoughts?

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  • Display wireless channels currently in use

    - by DrStalker
    Is there any windows utility to display the wireless channels are currently in use by the available wireless networks? I'd like to be able to see what existing channels are using so I can try to minimize interference on a new access point without a lot of trial and error.

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  • Throughput = BS * IOPS?

    - by Marvin
    I've seen in many places that throughput = bs * iops should be true. For example writing at 128k block size to a SAS disk that can support 190 IOPS should give a throughput of ~23 MBps - 23.75(MBs) = 128(BS)*190(SAS-15 IOPS)/1024. Now when I tested it in a VM against a monster NetApp filer I got theses results: # dd if=/dev/zero of=/tmp/dd.out bs=4k count=2097152 8589934592 bytes (8.6 GB) copied, 61.5996 seconds, 139 MB/s To view the IO rate of the VM I used iostat and esxtop, and they both showed around 250 IOPS. So to my understanding the throughput was supposed to be ~1000k: 1000(KBs) = 4(BS)*250(IOPS). dd of 8GB is twice the size of RAM of course, so no page caching here. What am I missing? Thanks!

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