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• How to connect two subnet with Windows Server?

  - by 9dan

  Hello, I have some work to do in a small office. This office has two separate Internet connections. One is a kind of DSL line and connected through the Internet sharing router (DHCP). One is a leased line with public IP adresses (No DHCP). This leased line provide only 30 IP addresses and the gateway is provided by the ISP. Some workers use private IP provided by the router, some workers use manually setup public IP. There is a Windows 2008 R2 server with two NICs, connected to each lines. I want to connect/merge(?)/bridge(?) two subnet with this server so that users from the different subnet can access each other. How can I accomplish this? Something like, add gateway function to this server and public IP users change the gateway to point this server.. It it possible ? Sorry for my rambling. Thanks in advance.

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• Free or inexpensive compression proxy

  - by Maksee

  Hi, I'm looking for a way to minimize the net traffic use with my netbook mobile internet connection. Recently I managed to install Opera Mini on the XP and the opera approach of compressing the data helped a lot. But I would like to do the same with my favorite browser using http proxy that compress the data "on the fly". But searching for "compression proxy servers" I could not find any working host/port links. Is it a brand-new technology and therefore expensive or rarely available?

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• Connect 2 ubuntu computers into a LAN

  - by arsan

  I've got two computers both running Ubuntu and i want to connect them into a LAN so i can ssh from the one into the another - i know how to do the ssh configuration part, i just don't know how to connect them - i put the cable but nothing happened. Please tell me what needs to be done.

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• Best way to split LAN computers on two WANs (not load balancing)

  - by lpfavreau

  What is the best way to split the computers of a LAN (about 50 computers) to go on two WANs, depending on the computers' IP address or computers' configuration (gateway). I'm not looking for load-balancing, I need to be able to route which computer uses which Internet connection. A solution would be to rewire the old office to split the two distinct groups that need to use two different Internet connections but I'm not sure it's worth it at the moment. I have a pfSense router configured with the LAN (DHCP), WAN1 and WAN2. I also have the IP addresses (and ability to configure) the next router on WAN1 and the one on WAN2. What would you suggest? Routing based on IP addresses ranges? Different gateways? VLANs would be difficult for the same reason as to why rewire is a bit complicated. Thanks!

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• How to Set "<options>" in fstab - Manual Mounting is Successfull

  - by nicorellius

  I am not real familiar with fstab yet, so I have a couple questions. When I use this command to mount devices: sudo mount -t cifs -o username=admin //192.168.1.134/share_name /mnt/share_name With passwords: sudo="local user password" password="password for device" How do I translate that into an fstab entry? So far, I have tried this in the fstab and mounting fails: //192.168.1.134/share_name /mnt/share_name cifs default 0 0 This is where the question comes in. Where I have default, should there be something instead, indicating username=admin, etc?

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• How to disable shared folders passowrd prompt on window & Linux

  - by user53864

  I'm using windows xp, vista, server 2008 R2, ubuntu-linux 9.10, 9.04, 8.10 desktop editions. I shared some folders/directories in windows and in ubuntu machines. Normally for the first time it's prompted for the password when tried to access the shared folders on either of the machine and again they prompt for the password when the system is rebooted. Recently I've created a batch and sh script which copies from the shared folders from windows to ubuntu and vice-versa. But the scripts cannot automate the password prompt and I'm wondering if I could disable the password prompt of the shared folders on windows and as well as on ubuntu machines so that my script runs smoothly. I don't know if it's possible or not but want to confirm posting here and if it is then nothing but saying need help...!. Thanks all!

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• Distributed Nagios Installation

  - by kruczkowski

  I'm looking for a plug-in or product that will act as a remote probe and perform tests then send back the results to the central Nagios server. Reason for this is that I'd like to monitor internal systems and servers at customers, but don't want to allow all the traffic passing the firewalls. Ideally I'd like a soft-probe that would be installed and then perform the tests and send back the results (via SSH) to the central Nagios installation. Does anyone know of a product or plug-in that would offer such service? If not Nagios, is there any other monitoring system that does such a thing (ideally open-source)?

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• What's port 1283?

  - by kbluck

  I see a lot of connection attempts to 1283/tcp on my firewall from a client computer to a Windows Server 2008 Domain Controller. What exactly is this traffic? Something to do with NetBIOS, perhaps?

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• Have to reset wireless frequently on iPad / Macs connected to Cisco WRV200

  - by retailevolved

  I have a Cisco WRV200 set up in our small office. The wireless signal works great for PCs, but I have found that Macs and iPads have to frequently reset the connection. It will be working for about 10 minutes, then stop. To fix it, I just turn off Airport and turn it on again. On an iPad, I have to go into settings, shut the wireless off, and then turn it on again. The router is broadcasting mixed B/G on channel 6. Security is WPA-PSK2. Anybody out there had similar issues with their router? How can I fix it?

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• Browsing \\computer\share fails, but net use \\computer\share works?

  - by JMD

  I've had mixed results with using Windows Explorer to browse remote file shares. The setup: I'm at work on Windows XP SP3 Files are at home on Windows XP SP3 Two separate VPNs are available to access my PC at home corporate OpenVPN (10.1.2.3) a Hamachi/LogMeIn connection (5.1.2.3) With respect to my problem, it doesn't matter which IP I use. They both perform exactly the same way: I expect that if I open Windows Explorer and type in \\10.1.2.3\Shared I should be interrupted with a challenge for credentials, and then be able to interact with the files in the share. However, I just get that annoying dialog, "Windows cannot find '\10.1.2.3\Shared' Check the spelling and try again, or try searching for the item ..." However, I can take that exact same computername/sharename and with net use I can: net use * \\10.1.2.3\Shared * /user:homecomputername\username with this result: Type the password for \\5.69.83.158\C$: Drive Z: is now connected to \\5.69.83.158\C$. The command completed successfully. I can then access the files in Z: in Windows Explorer which was my original intent. Even after Z: is already mapped and the credentials are cached I still cannot bring up \\10.1.2.3\Shared in Windows Explorer. Why does the latter work, but not the former? Edit: Other services work fine, such as RDP. (I have a problem in which I can't SSH home, but I'll consider that separately.)

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• Common filesystem for servers behind a rackspace load balancer

  - by thanos panousis

  Our PHP application consists of a single web server that will receive files from clients and perform a CPU-intensive analysis on them. Right now, analysis of a single user upload can take 3sec to conclude and take 100% CPU. This makes our system capacity amount to 1/3 requests per second. My team's requirement is to increase capacity without a lot of code reengineering. A possible solution would be to set up a load balancer in front of multiple servers running the same app, connecting to a common DB. The problem is that the analysis outputs files on disk. A load balancer would increase capacity, but then files won't be available between servers so consequent client requests may fail. We are hosted on Rackspace, is there a way to configure some sort of "common" storage for all servers, without having to rewrite our file persistance code? Current code relies on simple fopens etc. What are our options?

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• Notification if SyncToy fails

  - by Joel Coehoorn

  I support a number of laptop users. In the past (before there were many laptops), each user's computer was set up so that their My Documents folder was mapped to a shared folder on the server. This worked very well for desktops, but has several obvious downsides for laptops (no files when you're off-site, etc). I'm exploring several alternatives for laptops to better map the shared drives, and SyncToy seems the best so far. I have a couple trial users set up so that it syncs automatically whenever they log in, along with a desktop icon they can click if they know they'll need something saved before the next login. My problem is that I'm concerned how I, as the maintainer of this system, can spot failures. I don't want my first indication of a problem to come after a user drops their laptop in a lake and it turns out nothing was synced for the last year. Any ideas?

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• Mac OS X 10.6.5 and link-local addresses (169.254.x.x)

  - by WMR

  Starting with the latest update of Mac OS X (10.6.5) all Apple applications (Safari, Mail, iChat, etc.) don't connect to the internet anymore, if the assigned IP address is from the 169.254.0.0./16 range. This is not a routing problem, I can still ping any server I want, even connecting via command line tools works. I know this problem could easily be fixed by changing the IP address to a more common RFC1918 address (e.g. 192.168.0.0./16), but this is what the ISP assigns via DHCP and I am not sure I can convince them (Xplornet) to change that. So I am wondering if there's a (hidden?) setting that would convince Apple applications, that they are in fact still online.

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• How do I associate server traffic to a domain hosted on that server?

  - by morley

  I have three or four Linux servers, each of which hosts anywhere from 5 to 50 domains. Each domain has its own folder: /www/projectname/web/ Logs go in: /www/projectname/log However, if there's a traffic spike (or, as I see it on my end, a memory usage spike), I'm not sure how to figure out which domain is responsible for the traffic without running tail -f on each of the projects and making an educated guess based on how fast things scroll. There's got to be a better way! There probably is, but I haven't seen it. And the last time I checked, bandwidth monitors only report system-wide load. So if anyone knows how to do this the right way, please let me know. Thanks!

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• port forwarding/network settings preventing from game hosting

  - by Xitcod13

  I asked where to post this question on stackoverflow meta and they directed me here. Im on wireless connection and I want to host games in StarCraft: Brood War and i've been looking everywhere on how to accomplish that. My internet is amazingly fast so its not an internet problem (and when i play other peoples games dont experience lag) I found out that i need to have a static IP but I have already checked that i do (i downloaded a program to make my id static and it already was; The program asked for which router I used So i think it checked the router settings already) I found out that i need to allow Sc access through the firewall which i already did (i have zone-alarm but I allowed it everything possible except receiving emails lol) I have recently noticed that few people actually can join my games but most of them cannot. I dont know whats going on here. I really want to be able to host games overall how do I go about checking what is wrong with the network. Update: Alright I figured out what i did wrong in the first part I did not actually set up forwarding on the router -.- I have tried to fix my mistake. I went to forwarding options in my router (as this guide for my specific router suggests) but when i click ok I get a message incorrect ip address. 192.168.1.1 is my routers address. The default address that appears there is 192.168.1 (blank) I have set it to my computers current Ip4 adress which 192.168.1.23 I hope this works If so i will post it as an answer and mark it.

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• how to set up dual wireless routers (G and N) with single broadband connection

  - by user15973

  A local cafe has an 802.11g wireless router attached to either an 8- or 12Mbs broadband connection. Although many customers still have -g devices, an increasing number are showing up with 802.11n devices (e.g. Mac laptops, iPads). The cafe owner is content with his router's area coverage, but he would like for his customers to be able to take advantage of the higher -n download speeds. He could simply replace the -g router with a -n router, but reportedly -n routers slow down considerably when servicing both -g and -n connections. Another option would be to buy the -n router, run an Ethernet cable between the two routers, and (of course) hook up the broadband connection to one of the two routers. Still another option would be to attach an ordinary, wired switch to the broadband connection and then attach both routers to the switch. Aside from the cost issue, what are the tradeoffs of those approaches? Which would you recommend, and why? Is there a better option than the ones I mentioned? Thank you in advance for your advice.

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• Is there any way to prevent a Mac from creating dot underscore files?

  - by SoaperGEM

  At work we're letting one of our very tech savvy clients actually help out a little with a few development projects specific to him. However, he uses his own personal Macbook, and as he edits files on our (Windows) networks, his Macbook always creates a bunch of unnecessary meta files that we end up deleting later. For instance, it creates a file called .DS_Store in any directory he opens, as well as "dot underscore" files for each file he edits. So for instance, if he's editing a file called "Main.php", his Macbook will create another file called "._Main.php". I know there are ways to prevent creation of .DS_Store files, but none about how to prevent creation of these hidden files prefixed with dot underscore. Is there any way to turn that off on Macs? Any way to prevent it from creating those files in the first place?

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• Windows VPN always disconnects after < 3 minutes, only from my network

  - by hemp

  First, this problem has existed for almost two years. Until serverfault was born, I pretty much gave up on solving it - but now, hope is reborn! I've set up a Windows 2003 server as a domain controller and VPN server at a remote office. I am able to connect to and work over the VPN from every windows client I've tried, including XP, Vista, and Windows 7 without issue, from at least five different networks (corporate and home, domain and non.) It works fine from all of them. However, whenever I connect from clients on my home network, the connection drops (silently) after 3 minutes or less. After a short while, it will eventually tell me the connection has dropped and attempt to redial/reconnect (if I've configured the client that way.) If I reconnect, the connection will re-establish and appear to work correctly, but again will silently drop, this time after a seemingly shorter time period. These are not intermittent drops. It happens every single time, in exactly the same way. The only variable is how long the connection survives. It doesn't matter what type of traffic I send. I can sit idle, send continuous pings, RDP, transfer files, all of that at once - it makes no difference. The result is always the same. Connected for a few minutes, then silent death. Since I doubt anyone has experienced this exact situation, what steps can I take to troubleshoot my evanescing VPN?

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• How do I find the MAC address of my laptop?

  - by pravin

  i tried to find out the mac address in my notebook by run, then cmd and then config /all (by the procedure)but i didn't find it in my notebook inspiron mini dell. can u help to find the mac address? Is there any setting?

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• How to logon to a non-domain computer from one in a domain

  - by Svish

  I've met a rather annoying problem that should be very simple, but I can't seem to figure it out. I have a work laptop that is part of a domain, so my username is foobar\bob. I also have my home computer with no domain, just the username bob. I'm trying to connect to a share on my home computer from my work computer. It's asking me for my username and password, which is bob, but when I type in bob it assumes I mean foobar\bob, which of course doesn't work. I've tried to use hostname\bob, but that doesn't seem to work either... What can I do here? Both computers are running Windows 7.

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• Cannot access shares via \\servername but \\ip works

  - by Jeff

  To set up the scenario: One of our techs set one of the domain controllers to use Microsoft time. The time IS correct (including Time Zone) and DOES match the other domain controller's time; it was previously incorrect, however. Since the change, no users can connect via \\servername\share or \\servername.domainname.com but \\ip\share works fine. I cannot even access it from the other domain controller with which I know both have the same time. The servername DOES resolve to the correct IP address. Also, strangely enough, \\domainname.com works as well which resolves to the same server. Finally Everything that I have tried does resolve to the same, correct IP address. The error is: login failure: The target account name is incorrect. I believe it is time related but since the times are correct and match I'm not sure. Anyone know what might cause this?

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• Can I share my cable internet connection through my ADSL wireless router?

  - by Roaders

  Hi All Over the xmas period I am at my in-laws. They have Virgin Broadband (cable) and have a basic modem / router that is plugged directly into their computer using an ethernet cable. My wife and I arrived with 5 PCs! (ok, one is a gift and won't be used) 4 of which are laptops so I would like to be able to use their internet connection. At the moment I am working so have plugged the ethernet cable into my work laptop. Rebooting the router meant that my work laptop now has internet. I have my ADSL Netgear router which is wireless. I tried plugging it in between the router and the PC but I didn't seem to be able to share the internet connection wirelessly. The original PC still had internet despite ony being connected to my router but my wireless laptop didn't have a connection. My old cable router had an internet ethernet port on the back that the modem plugged into. My ADSL router doesn't, it has a phone connection socket. Is there a way of doing what I want with the equipment I have? Thanks

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• Run command before and after printing with CUPS?

  - by leto

  Hello, this is a home setup. A central printer server (Linux) manages the queue, a HP 2430DTN is attached to it via 100Mbit/sec Ethernet. The printer is hooked up to a managable power source. A shell script watches the queue on the server (lpstat -o) and turn on the printer when there is a job. If the queue is empty for 10 minutes it turns the printer off. Now this setup messes up, stops the printer etc. after a couple of weeks and is in general "not so reliable". I now know how to change the stop-printer thing, but: Is there a way to run my turn printer on script and turn printer off script directly from cups without watching the queue? That would be so cool!

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• Very Slow DSL (ethernet) speed [New Interesting Update]

  - by Abhijit

  Very IMPORTANT and INTERESTING UPDATE: Due to some reason I just thought to do a complete new setup and this time I decided to again have openSUSE plus ubuntu. So I first reinstall lubuntu and then I installed OpenSUSE 12.2 (64 bit). Now, my DSL speed is working very normal and fine on opensuse. So this is very scary. Is it possible for any operating system to manipulate my NIC so that it will work fine only on that operating system and not on another os? Regarding positive thinking and not being paranoid, what is it that makes ONLY suse to get my NIC to work at normal speed but ubuntu can not do it? Not even fedora? Not even linux mint? What all these OS are lacking that enables suse to work great? == ORIGINAL QUESTION == I 'was' on opensuse 12.2 when my dsl speed was normal. Yesterday I switched from opensuse to ubuntu 12.04 and speed decreased. It came to range of 7-10-13-20-25-kbps. Then I switch to linux mint, and then to fedora. Still slow speed. When I was in ubuntu I disabled ipv6 but still no luck. Now I am in fedora but this time with DIFFERENT ISP. And still I am getting very slow sped. So my guess is this is nothing to do with os. What can be wrong? Is this problem of NIC? Does NIC speed decreases over time? Does NIC life ends over time as with keyboard or mouse? Help please All the os I used are 64 bit and my laptop is Compaq Presario A965Tu Intel Centrino DUal Core. Interesting thing to notice is I get normal speed while downloading torrent inside torrent client softwares. This slow speed issue applied to download from any web browser or installing software using terminal.

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• Why does a Remote Desktop Redirected Printer Doc appear every time I connect to Windows Server 2003 SBS?

  - by Jim Dagg

  I've run into a weird, persistent issue regarding a remote desktop connection. Every time I successfully log into a server running Windows Server 2003 SBS, without taking any further action, after a few seconds a print job spontaneously appears on my machine, titled "Remote Desktop Redirected Printer Doc". The document is 4K, datatype RAW, processor "WinPrint". I've heard of people running into this issue before, but can't seem to hunt down a coherent solution. It's a minor annoyance, but I get annoyed when Windows complains about a print job that, as far as I know, came from nowhere. Any thoughts on why this would occur and how I could prevent it from happening?

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