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• Small store infrastructure - where to begin?

  - by KevinM1

  It looks like my older brother is about to change jobs - from lawyer to shooting range proprietor - and since I'm the family 'computer guy' I have the task of coming up with and setting up the in-store equipment. Only problem, I don't know how to start or where to look. I'm a web programmer, not an IT specialist. To that end, I figured I should ask the pros. Users: 3 (myself, my brother, and his business partner) Equipment: 1 Windows (likely 7) desktop for POS software, 1 Windows desktop/laptop for backroom use (bookkeeping, etc.) Other: ?? I'm looking for a reliable and, well, idiot-proof way to handle backups. Neither my brother nor his business partner are tech savvy (A web browser, email, MS Word and Excel are about the extent of their knowledge), so I need something they can handle. On-site would be preferable to off-site, given my brother's hesitance to have sensitive business data be handled by an outside source. I'm also looking for a small on-site server. I estimate that, at most, only 2-3 users will need access. A linux solution would keep costs down, but I'm concerned about Windows <- linux interoperability. Would the store security cameras' storage be handled by the security company, or would we have to stream that data to our own server? I know from my own experience with personal security that the company gives/loans a recording device to the home owner, but I'm not sure about business security. I know this sounds like a shopping list, and it's pretty vague. I wish I could give more detail, but between my own ignorance and things not being 100% nailed down on the business end, I'm a bit stuck. At the very least I'd like a nudge - links on a place to start, what to look for, things I need to think about, etc. - for this endeavor. Thanks.

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• Anonymous file sharing without login window, from Windows 7 server to XP clients

  - by Niten

  I'm trying to provide machines on a small LAN with read-only, anonymous access to files shared from a Windows 7 workstation (let's call it WIN7SVR). In particular, I don't want clients to have to deal with a login window when they navigate to, e.g., \\WIN7SVR in Windows Explorer, but we do not have a domain and synchronizing accounts between the server and clients would be intractable. There are both Windows 7 and Windows XP clients that need access to these shares. I got this working for Windows 7 clients by just enabling the Guest account on WIN7SVR and setting appropriate share permissions. Other Windows 7 machines automatically try logging in as Guest, it seems, so their users don't have to deal with the login window. The problem is with the XP clients--they can access the server if the user enters "Guest" in the login window, but I don't want users to have to do that. So from what I gather, in my limited understanding of Windows file sharing, this boils down to granting null sessions access to file shares on WIN7SVR. But I've had no success so far on that front. I've tried all the following in the local group policy editor on the Windows 7 server: Set Network access: Let Everyone permissions apply to anonymous users to Enabled Set Network access: Restrict anonymous access to Named Pipes and Shares to Disabled Added the names of corresponding shares to Network access: Shares that can be accessed anonymously Added "ANONYMOUS LOGON" to Access this computer from the network under User Rights Assignment Any advice would be highly appreciated... I'm mostly a Unix guy, so I feel somewhat out of my league with Windows file sharing. I do understand that any sort of anonymous access to file shares isn't generally ideal from a security standpoint, but it's the most practical solution for us in this case, and access to our network is well enough controlled that share-level security isn't a concern.

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• fwbuilder/iptables manually scripted + autogenerated rules at startup?

  - by Jakobud

  Fedora 11 Our previous IT-guy setup iptable rules on our firewall in a way that is confusing me and he didn't document any of it. I was hoping someone could help me make some sense of it. The iptables service is obviously starting at startup, but the /etc/sysconfig/iptables file was untouched (default values). I found in /etc/rc.local he was doing this: # We have multiple ISP connections on our network. # The following is about 50+ rules to route incoming and outgoing # information. For example, certain internal hosts are specified here # to use ISP A connection while everyone else on the network uses # ISP B connection when access the internet. ip rule add from 99.99.99.99 table Whatever_0 ip rule add from 99.99.99.98 table Whatever_0 ip rule add from 99.99.99.97 table Whatever_0 ip rule add from 99.99.99.96 table Whatever_0 ip rule add from 99.99.99.95 table Whatever_0 ip rule add from 192.168.1.103 table ISB_A ip rule add from 192.168.1.105 table ISB_A ip route add 192.168.0.0/24 dev eth0 table ISB_B # etc... and then near the end of the file, AFTER all the ip rules he just declared, he has this: /root/fw/firewall-rules.fw He's executing the firewall rules file that was auto-generated by fwbuilder. Some questions Why is he declaring all these ip rules in rc.local instead of declaring them in fwbuilder like all the other rules? Any advantage or necessity to this? Or is this just a poorly organized way to implement firewall rules? Why is he declaring ip rules BEFORE executing the fwbuilder script? I would assume that one of the first things the fwbuilder script does it get rid of any existing rules before declaring all the new ones. Am I wrong about this? If that was the case, the fwbuilder script would basically just delete all the ip rules that were defined in rc.local. Does this make any sense? Why is he executing all this stuff at startup in rc.local instead of just using iptables-save to keep the firewall settings at /etc/sysconfig/iptables that will get implemented at runtime?

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• Toshiba Satellite P755D USB 3.0 Drivers Missing - Windows 7 Professional

  - by nicorellius

  I bought a Toshiba Satellite P755D recently and installed Windows 7 Professional on the machine. It runs great. But I noticed the exclamation point in the yellow triangle icon in the Device Manager next to the Universal Serial Buss (USB) Controller (I'm assuming this is the USB 3.0 controller because mine doesn't recognize devices). Normally, when this kind of thing happens I go to the manufacturer's website and download appropriate drivers and call it a day. But not this time... I browsed to my model and found no driver for the USB 3.0 controller. I tried other HW and Utility drivers, thinking they would be bundled. No luck. I tried looking up the motherboard in my machine. Generic name, no luck. I then called Toshiba technical support and they tried basic troubleshooting, eg, uninstall device, reboot, for auto-installation; no luck. I popped the Windows 7 disk back in and tried to get information that way, no luck. Finally, the technical support guy said he would look into the engineer's system to see if there was a specific driver available and that's where I'm at. The technician told me that these USB 3.0 drivers come within the native driver pack in windows but that doesn't seem to be the case. Any ideas? EDIT - See attached screen shots.

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• ssh many users to one home

  - by filippo

  Hiya, I want to allow some trusted users to scp files into my server (to an specific user), but I do not want to give these users a home, neither ssh login. I'm having problems to understand the correct settings of users/groups I have to create to allow this to happen. I will put an example; Having: MyUser@MyServer MyUser belongs to the group MyGroup MyUser's home will be lets say, /home/MyUser SFTPGuy1@OtherBox1 SFTPGuy2@OtherBox2 They give me their id_dsa.pub's and I add it to my authorized_keys I reckon then, I'd do in my server something like useradd -d /home/MyUser -s /bin/false SFTPGuy1 (and the same for the other..) And for the last, useradd -G MyGroup SFTPGuy1 (then again, for the other guy) I'd expect then, the SFTPGuys to be able to sftp -o IdentityFile=id_dsa MyServer and to be taken to MyUser's home... Well, this is not the case... SFTP just keeps asking me for a password. Could someone point out what am I missing? Thanks a mil, f. [EDIT: Messa in StackOverflow asked me if authorized_keys file was readable to the other users (members of MyGroup). Its an interesting point, this was my answer: Well, it wasn't (it was 700), but then I changed the permissions of the .ssh dir and the auth file to 750 though still no effect. Guess it's worth mentioning that my home dir ( /home/MyUser) is also readable for the group; most dirs being 750 and the specific folder where they'd drop files is 770. Nevertheless, about the auth file, I reckon the authentication would be performed by the local user on MyServer, isn't it? if so, I don't understand the need for other users to read it... well.. just wondering. ]

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• Checkpoint VPN-1 R60 and Windows 7 64 Bit Client

  - by Mohit

  Hi All, As per my knowledge of checkpoint VPN-1. My company is using checkpoint VPN-1 R 60 ( I guess as I dont know how to check server version) Firewall(VPN Server). Now the problem is that I installed Windows 7 64 bit. But, after my research I found that there are not even one client (SecuRemote/SecuClient) for Win7 64 bit, when Firewall or server is R60. I thought of some open source solutions. Can you guys please suggest me some with the configuration required. As of now, I know the IP of the server. I know my username and password using which I connect and that is not my domain password. that i can confirm to you guys. I am not a network guy. I am more of a developer. But, I need some help in this.So, let me know if I can provide you more details. Please please i need urgent help on this.

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• USB question (how durable is it, how should I workaround this)

  - by Shiki

  The plot is quite simple. Got a Razer mouse. If I plug it in, it works. After a shutdown/hibernation, I have to replug it entirely at the back of the PC. (It works in my laptop even after severel shutdown, etc, so yes I guess it's my motherboard.. but it still got 2 years of warranty and it comes with quad SLI, its not an old motherboard at all. (MSI P7N SLI FI (bought it after a hungarian guy's recommendation)). So. I only could come up with one "solution". Get 3 USB cable (you know, USB-USB). If its possible the shortest ones (don't know if the responsibility/anything will worsen), AND replug only the middle+closest to the USB port junction, since those are replaceable. What do you think? Any other idea? (BIOS is updated, mouse driver ... doesn't really matter, the mouse won't even blink a bit after this happens. It lights up and goes totally dead.)

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• Is Ubuntu a viable replacement of Windows XP for small enterprise environments?

  - by Alex. S.

  Hi all, I'm a newbie systems administrator, so any advice would be great. I would like to setup ubuntu 8.04 lts in a small office of consulting in management (around 50 workstations) instead of Windows XP. I would install MS Office 2007 via WINE (*). It would be a fresh installation, so the migration would be less of a pain. The new setup would also include a small server as document repository and a backup server by now. Later, I would install another goodies like a IM server, a document management solution, and whatnot collaborative tool. What do you advice in this scenario? Do you think is viable? Should I try to convince my managers this is a good idea? I consider myself as a fair experienced user in both systems, and I'm the only guy in charge of everything. I need to cut costs down, and I think that antivirus and antimalware software are a waste of money and time. Is this good idea?, or should I resign and try to lock down the Windows systems and install AV software? Is there anything else in this setup I'm not foreseeing? (*) The only catch in my test machine until now had been that Office SmartArt doesn't work properly, the rest of Office 2007 may seem ok.

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• Active Directory: how to be SURE users can change their own passwords?

  - by Latro

  Working on some project where a tool we have has to authenticate against AD connecting via LDAPS and perform password changes if required or requested. IN THEORY, the tool does that, and we have seen it work in other projects. IN PRACTICE, against this particular directory, it fails. Been driving me crazy. The particulars of the situation: Windows 2003 AD Defined a "technical user" for the LDAP connection with rights to change users passwords When password change is required - in this case, because pwdLastSet is 0 - the tool uses the technical account to go, bind to the controller and change the user password. If password change is not required but the user request it, then the bind is done with the user account. That last condition is the one that doesnt work. With the technical user the password change is possible, but with the user itself, it isnt. We get an error like this: LDAP access failed: javax.naming.directory.InvalidAttributeValueException: [LDAP: error code 19 - 0000052D: AtrErr: DSID-03190F00, #1: 0: 0000052D: DSID-03190F00, problem 1005 (CONSTRAINT_ATT_TYPE), data 0, Att 9005a (unicodePwd) no idea what DSID-03190F00 means cause it doesnt seem to be anywhere in google :-/ Been looking at several MS documentation pages and frankly, I'm not understanding one bit of it. There is some "control access right" called User-Change-Password that may, or may not, control what objects have the right to change their own password, which may, or may not, have to do with ACE and ACLs... There is GPO. There is maybe the password policy but it is only set to ask for passwords of 6 chars or more... Can anybody explain to me in easy-to-check steps how can I go and tell the AD admin guy (who is as lost as me) what to do to ensure that users in the AD directory (objectClass top,person,organizationalPerson and user) are able to change their own passwords by themselves? Thanks in advance

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• Windows shutting down, CPU maxing out in Windows-7 32-bit? [closed]

  - by Vivek Sharma

  I have no idea, what is happening to my laptop. For last 5-6 times it has automatically shutdown while running, without doing anything serious. And I even do get the message during boot which says - Start windows normal - Start in safe mode It just boots up normal. Few days ago, my screen blinked and it the PC shutdown immediately. After that I was not able to get it started. I got it repaired, the guy said he has replaced the display chip (nVidia-nvs-140), but i seriously doubt that. Now it started working, but would shutdown every 20 mins or so. I have a dual boot, ubuntu-11.10 works just fine. Virus scan on windows shows nothing. I am pasting my perfmon output. My CPU for reason is maxing out to 100% continously, for windows internal processes. Please have a look at the attached file. Strangly now for last 2 hours it is working fine, but i am just writing emails and reading excels. ThinkPad T61 | t9300 | 3gb | nVidia 140 nvs-quadro (latest driver 296.10) What do you suggest?

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• Server 2003 R2 - II6- granting access to website via IP with subnet range

  - by John

  We are trying to allow for a client to connect to our website. By default we are Denying all access except for those with the specified IPs we have configured to run, everything before has just been a single IP address. However now we must implement a range of IPs and rather than input thousands of records we want to use the group of computer options in the Grant Access page. However we have it configured to work off of the IP 72.21.192.0 with a subnet mask of 255.255.224.0 They are unable to connect. Looking over our IIS logs they are receiving a 302 error which is the same behavior anyone should get whom is unauthorized to view the page in question. The IP address coming in is 72.21.217.2, so it should be well within the rage of acceptable IP addresses. I'm at a loss as everything I look up tells me to do what we are doing. So any insight would be appreciated. Especially because I'm a software guy not hardware. Thanks!

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• How to setup a hyper-v domain with internet access

  - by fynnbob

  First off let me say that I'm not a network admin or server guy, I know very little about that stuff. What I'm trying to do is setup a virtualized domain using hyper-V. Here is the configuration: Physical Server: 4Mb RAM Windows Server 2008 R2 running Hyper-V Virtual Environment: One Domain Controller running Windows Server 2008 R2 One Client running Windows Server 2008 R2 I have been successful in setting up a virtual domain controller and adding a virtual client to that domain controller but I'm stuck at trying to give the virtual Environment Internet access. I can give the client VM Internet access if I remove them from the virtual domain but once I add them back to the virtual domain, Internet access is gone. I've read articles describing many different ways this can be done (using RRAS with NAT, using a wireless connection, etc...) but all of those articles only cover a small piece of the setup and also seem to be geared towards people who know there way around networking and servers which I don't. I'd like to know more but my thing is software development and I have my hands full trying to keep up with everything in that realm. I simply want to setup a virtual domain with Internet access for testing. Can anyone point me to any "for Dummy's" type information on how to setup this type of environment or can anyone provide this kind of step-by-step help. Any help would be very much appreciated.

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• Problem running “Central Administration” website after windows update at Windows 2003 Server Standar

  - by Magdy Roshdy

  I was have WSS 2.0 and then I upgraded to WSS 3.0 and the old instalation database was SQL 2000, now I have another SQL Server instance called:server_name\MICROSOFT##SSEE . After upgrade every thing works fine and our team started to use the portal and we sent lot of documents and make lot of activities on it. The problem started after installing Windows updates the website suddenly stopped and giving me an error "Cannot connect to the configuration database" If I tried to open SharePoint Products and Technologies Configuration Wizard it is gives me a strange error says: "An exception of type Microsoft.SharePoint.PostSetupConfiguration.PostSetupConfigurationTaskException was thrown. Additional exception information: SharePoint Products and Technologies cannot be configured. The current installation mode does not support SKU to SKU upgrades because there exists an older version of Windows SharePoint Services that must be upgraded first " At this post:http://stackoverflow.com/questions/114398/iis-error-cannot-connect-to-the-configuration-database/249494#249494 the guy of the second answer have the same problem and he suggested a solution but I don't understand well. I tried as he suggested to make the identity of the app pool of the SharePoint web site as "IWAM_server_name " after that the error changed as he said and I web site give me "Server Application Unavailable " and when checked the Event Viewer at the server I found that ASP.NET 2.0 give this exception: "Could not load file or assembly 'System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. Access is denied ." and I don't know how to solve this problem. I'm really want to make my web site working because our team really need these documents and its stuff. I hope I will find some one to help me.

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• How do I force a restore over an existing database?

  - by Ian Boyd

  I have a database, and i want to force a restore over top of it. I check the option: Overwrite the existing database (WITH REPLACE) But, as expected, SSMS is unable to overwrite the existing database. Of course i don't want different filenames; i want to overwrite the existing database. How do i force a restore over an existing database? And for Google search crawler: File '%s' is claimed by '%s'(4) and '%s"(3). The WITH MOVE clause can be used to relocate one or more files. RESTORE DATABASE is terminating abnormally. (Microsoft SQL Server, Error: 3176) Update The script (before i deleted the database, because i needed to get it done) was: RESTORE DATABASE [HealthCareGovManager] FILE = N'HealthCareGovManager_Data', FILE = N'HealthCareGovManager_Archive', FILE = N'HealthCareGovManager_AuditLog' FROM DISK = N'D:\STAGING\HealthCareGovManager10232013.bak' WITH FILE = 1, MOVE N'HealthCareGovManager_Data' TO N'D:\CGI Data\HealthCareGovManager.MDF', MOVE N'HealthCareGovManager_Archive' TO N'D:\CGI Data\HealthCareGovManager.ndf', MOVE N'HealthCareGovManager_AuditLog' TO N'D:\CGI Data\HealthCareGovManager.ndf', MOVE N'HealthCareGovManager_Log' TO N'D:\CGI Data\HealthCareGovManager.LDF', NOUNLOAD, REPLACE, STATS = 10 I used the UI to delete the existing database, so that i could use the UI to force an overwrite of the (non)existing database. Hopefully there can be an answer so that the next guy can have an answer. No, nobody was in the context of the database (The error message from other connections is quite different from this error, and i only got to see this error after i killed the other connections).

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• Windows Server 2003 IPSec Tunnel Connected, But Not Working (Possibly NAT/RRAS Related)

  - by Kevinoid

  Configuration I have setup a "raw" IPSec tunnel between a Windows Server 2003 (SBS) machine and a Netgear FVG318 according to the instructions in Microsoft KB816514. The configuration is as follows (using the same conventions as the article): NetA | SBS2003 | FVG318 | NetB 10.0.0.0/24 | 216.x.x.x | 69.y.y.y | 10.0.254.0/24 Both the Main Mode and Quick Mode Security Associations are successfully completed and appear in the IP Security Monitor. I am also able to ping the SBS2003 server on its private address from any computer on NetB. The Problem Any traffic sent from a computer on NetA to NetB, or from SBS2003 to NetB (excluding ICMP Ping responses), is sent out on the public network interface outside the IPSec tunnel (no encryption or header authentication, as if the tunnel were not there). Pings sent from a computer on NetB to a computer on NetA successfully reach computers on NetA, but the responses are silently discarded by SBS2003 (they do not go out in the clear and do not generate any encrypted traffic). Possible Solutions Incorrect Configuration I could have mistyped something, somewhere, or KB816514 could be incorrect in some way. I have tried very hard to eliminate the first option. Have re-created the configuration several times, tried tweaking and adjusting all the settings I could without success (most prevent the SA from being established). NAT/RRAS I have seen multiple posts elsewhere suggesting that this could be due to interaction between NAT and the IPSec filters. Possibly the NetA private addresses get rewritten to 216.x.x.x before being compared with the Quick Mode IPSec filters and don't get tunneled because of the mismatch. In fact, The Cable Guy article from June 2005 "TCP/IP Packet Processing Paths" suggests that this is the case, (see step 2 and 4 of the Transit Traffic path). If this is the case, is there a way to exclude NetA-NetB traffic from NAT? Any thoughts, ideas, suggestions, and/or comments are appreciated.

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• I have a perl script that is supposed to run indefinitely. It's being killed... how do I determine who or what kills it?

  - by John O

  I run the perl script in screen (I can log in and check debug output). Nothing in the logic of the script should be capable of killing it quite this dead. I'm one of only two people with access to the server, and the other guy swears that it isn't him (and we both have quite a bit of money riding on it continuing to run without a hitch). I have no reason to believe that some hacker has managed to get a shell or anything like that. I have very little reason to suspect the admins of the host operation (bandwidth/cpu-wise, this script is pretty lightweight). Screen continues to run, but at the end of the output of the perl script I see "Killed" and it has dropped back to a prompt. How do I go about testing what is whacking the damn thing? I've checked crontab, nothing in there that would kill random/non-random processes. Nothing in any of the log files gives any hint. It will run from 2 to 8 hours, it would seem (and on my mac at home, it will run well over 24 hours without a problem). The server is running Ubuntu version something or other, I can look that up if it matters.

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• Have .cmd in startup wait for system wide startup to run.

  - by Dan

  On a computer I'm not an administrator on, there is a startup file (.cmd file in C:\Documents and Settings\All Users\Start Menu\Programs\Startup) for all users. It does several things I don't like, so I have created my own .cmd file which I have placed in C:\Documents and Settings\[user]\Start Menu\Programs\Startup. I want my code to run after the system wide, because my program first undoes the network mappings the system wide file did, and then replaces it with my own network mappings. How can I make my program wait and start as soon as the system wide one is done? (I cannot remove or edit the system wide file). Thanks EDIT: The time that the system wide file takes to runs varies and I would like my file to run right after. The "If Exists" method seems a little to contingent since the system wide script can change or a file could be moved. I am hoping to give my script to a few of my coworkers, so hoping to have it work without me having to update anything. Also, being a linux guy, I don't know cmd code, so please write out any coding suggestions.

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• my cpu won't start. all fan were spinning for a second then nothing happen

  - by Tommy

  I need help about this.. I'm from Malaysia.. Back then my cpu is all okay..and it's 4 year old.. I think this question is answered before but i'm still don't understand.. when i plugged my cpu..turn it on and all of the fan (graphic card, mobo fan and PSU fan) were spinning just for a second than nothing happen.. I don't know if it is because of the PSU or my mobo.. I sent my cpu to the shop and they said it must be the mobo.. They tell me to change my mobo and PSU also..and it cost over 100 buck (rm300 in Malaysia). and i'm real 'dry' right now. My whole data is inside the HDD. School projects, photos, games, and many..I really-really need my cpu back alive.. My mobo is MSI MS-7529 with dual core chips. My PSU is ATX-480W. the PC store guy said i need to change to new ASUS mobo if I want. I dont know what type it is but Then he tell me to change my PSU also because he don't think my old PSU (ATX-480W) ain't compatible to the new mobo.. I was very need a help from you techie guys.. sorry for my terrible English..

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• Cisco configuration for public library internet

  - by AlternateZ

  I'm a C/C++ computer programmer turned IT support guy working for a public library. My day is usually spent helping random grandparents learn how to use email, so my networking knowledge is limited to what I can glean from google. Here's the situation. We have a public library with 20 PCs on a LAN and also public wifi access. Previously we were running all of this on 1 ADSL connection and people complained about low speeds. We hired a networking company to set up a Cisco dual-WAN router for us, and purchased an additional ADSL connection. The intention was to give the LAN PCs a guaranteed amount of bandwidth each, and then let the wifi users split the rest. The results were far worse than what we expected, and all we got from the company was excuses and they've since washed their hands of us. During busy periods, net performance on the LAN PCs are so poor that attaching files to gmail etc often times out and fails - far from the "guaranteed amount of bandwidth each" that we hope for! Sometimes it feels like performance is worse than before when we had 1 ADSL link and an unconfigured router? Anyways, surely this is a problem encountered a million times over across the world? (Sharing internet across many users effectively.) What are standard solutions for something like this? I admit to not even knowing the right jargon to google for (load balancing?) I'd appreciate any links to resources/guides that might help me get a better understanding of the problem/solutions, and perhaps some stories of your own experience in solving similar problems. This will help us evaluate and negotiate with network consultants in the future. If its relevant, our router config contains a section "policy-map" with "bandwidth percent" for each class of user (LAN, wifi), and "fair queue".

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• 'Future-proof' Live Audio Capture & Broadcast [migrated]

  - by maxpowers

  I'm looking to implement some live audio broadcasting functionality within a Ruby on Rails site for a client and was hoping I could get some input from people who have tackled this type of thing before. Essentially what I need to do is capture and record a user's audio (via microhpone, line in, etc), then stream that to 1,000+ listeners with very little latency, like sub 2 second if possible. So it looks like we've got 3 parts: Web-based audio capture (likely with Flash or JS) Server to accept audio feed and stream to listeners (likely Icecast or Wowza) Actual audio player (maybe HTML5 w/ Flash as a fallback? Maybe this jPlayer fork) Does RTMP makes sense here? Or maybe HTTP? What's the most 'future-proof' way to make this happen? Building with mobile in mind, but still want to be able stream to anyone. I've found lots of potentially helpful threads and software but I'm struggling to get an idea of how it all fits together. I'm a front end guy and way out of my comfort zone so if anyone has insights to offer, I'd love to hear them.

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• credit or minclass does not work well with pam_cracklib.so in common-password (opeSuSe 11.3)

  - by Mario

  I'm trying to implement password complexities on my pdc. It's a samba PDC with openLDAP backend. I tried cracklib-check but it looks like that I should have a decent and localize version of password library since the library out there usually comes in english. I also have another consideration that we will allow users to use any kind of password - even though it's dictionary based - as long as their passwords integrated with low/upper alphabet, digits, and other characters such as '$' or '_' (pam_cracklib.so calls them as classes). So here is my /etc/pam.d/common-password: #password requisite pam_pwcheck.so nullok cracklib password requisite pam_cracklib.so minclass=4 reject_username ##password requisite pam_cracklib.so \ ## dcredit=-1 ucredit=-1 lcredit=-1 ocredit=-1 reject_username password optional pam_gnome_keyring.so use_autht_ok password required pam_unix2.so use_authtok nullok The first commented line (with #) was the default configuration of openSuse 11.3. The 2nd/3rd (with leading ##) is another configuration I use when minclass=4 line is commented out. By the way, I have 'check password script' = /usr/local/sbin/crackcheck -d /usr/share/cracklib/pw_dict and passdb backend = ldapsam:ldap://127.0.0.1 parameters in smb.conf and cracklib-check works fine too. So here is the test I conduct. I logon to windows and then change my password. Sometimes it works fine that it trows error message - which what I wanted, but simple password with only lower alphabets can pass windows change password. Maybe I should make a new library which incorporates local vocabularies, but a guy out there (raise your hand please if you read this :) ) also experienced the same trouble with english word. Besides, what we really want is to let user to choose 2 or 3 format password out of 4 classes. Is there a bug or something with pam module in openSuse 11.3? Thank you in advance. Regards, Mario

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• Some doubts about the use of usermod and groupmod command

  - by AndreaNobili

  I am not yet a true "Linux guy" and I have the following doubts about how exactly do the following shell procedure (a list of commands steps) founded in a tutorial that I am following (I want deeply understand what I am doing before do it): sudo passwd root then login again as root usermod -l miner pi usermod -m -d /home/miner miner groupmod -n miner pi exit So at the beginning it enable the root account and I have to login again in the system as root...this is perfectly clear for me. And now I have the followings doubts: 1) The usermod command: usermod -l miner pi usermod -m -d /home/miner miner Reading the official documentation of the usermod command I understand that this command modify the informations related to an existing account Reading the documentation it seems to me that the -l parmether modify the name of the user pi in miner and then the -m -d paramether move the contents of the old home directory to the new one (named miner) and use this new directory as home directory My doubt is: what exactly do the executions of these operation? I think that: Rename the existing pi user in miner Then move the content of the old home directory (the pi home directory? or what?) into a new directory (/home/miner) that now is the home directory for the miner user. Is it right? The the second doubt is related to this command groupmod -n miner pi It seems to me that change the group name from pi in miner But what exactly is a group in Linux and why is it used? Tnx

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• After RAID failure SBS 2008 issues logging in and Exchange store does not mount

  - by Josh R

  today has been one of those days. Yesterday a hard drive in our Dell Poweredge 2900 server failed and the RAID array didn't degrade gracefully, so I called Dell (Server still under warranty) and got an engineer to work though the RAID issues with me. He was a nice guy but didn't do too much. We tried to put the RAID in a state where it was bootable and even though we only lost one disk there are still issues with the server. Once we got the server to boot there was an error message saying that the logonui.exe was corrupted and we needed to run chkdsk. I clicked through the error messages and the login screen never came up. So I power cycled the server and it chkdsk automatically but the login screen didn't appear. I tried safe mode, no difference there either. So the issues I am currently having are: 1) The server boots up, the loading windows screen comes up then it dumps me into a black screen where I can only see my mouse cursor. Ctrl+Esc doesn't work Ctrl+Alt+Del doesn't work 2) Some of the services come up: DHCP, DNS, DFS, and Print come up 3) The exchange information store and transport service don't start - I tried using mmc to connect to services.msc on the computer and start them but they throw an error message of "Can't start because group or dependency failed" Has anyone had a problem like this? Can anyone offer some guidance? Thanks a bunch!

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• How to slave a 3.5" 500gb SATA external hard drive (Western Digital) to my Dell Inspiron laptop

  - by AJ HDD

  I have a 3.5" Western Digital My Book 500gb external hard drive. I gave it to a friend of mine, and he broke the USB port in it. I went to a nearby comp repair shop and had him solder the thing, and it didn't detect when it when I plugged it into my Dell Inspiron laptop. I recently saw about the 3.5" SATA to USB enclosure, so I went to check it. Strangely, when its placed in the enclosure, its not detecting in Windows. Also, when it was put as secondary (I'm guessing slave) to the shop fellow's desktop, it shows up in the BIOS and while starting, but then again doesn't show in Windows 7. The guy told me that I need to use a data recovery tool to get my data back. P.S. Whe WD hard drive doesnt have an OS, just data. So my question is: Can I slave the drive to my Dell laptop and try to recover the data, and if so how? I would really appreciate it any help, thanks in advance.

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• Is it possible to update Lenovo T500 hybrid graphics driver?

  - by Shiki

  Hope someone had the same problem before. My laptop comes with two video "cards". Intel MHD4500 and ATI Radeon HD3650 (mobility). I can switch between them with the "Lenovo Battery Manager" from the taskbar. All good, but Lenovo provides the driver for this. The problem with that driver is they are a bit old. (Both Intel and ATI). For example I doubt I have any gpu accel in flash, and I experience some problem with dual display setup, which the new ATI driver would solve. Basically I want to create a new driver (I read a topic where a guy said its possible... baaack then when I was searching for something else). One needs a special ATI driver creation utility or what... sorry I can't recall the name of it. Thanks in advance. (Ah yes I forgot: The OS is a Windows 7 x64 Ultimate.)

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