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• Can't connect to Windows Server 2008 shared folders via VPN connection

  - by Pearl

  I set up an VPN connection on my 2008 server using RRAS. The VPN seems to work fine. I can connect from outside the network. I am also able to establish a remote access connection via the VPN-IP. However, I can't access my shared folders. After connecting to the VPN I can ping the server, but it is not shown in my networks. using \ip or \server-name doesn't work either, cannot be found. I checked ipconfig and this is what I found regarding the VPN: DNS-Suffix: Description: test Physical Adress: DHCP activated: No Auto-Config: Yes IPv4-Adress: 192.168.2.114 Sub: 255.255.255.255 Standard-gateway: DNS-Server: 192.168.0.1 NetBIOS: activated To clarify my IP-situation: server is connected to router with 192.168.0.x, the test-client is in an external network connected to a router with 192.168.1.x, server-client connection is using static ips with 192.168.2.x Can anyone help me with this one? The VPN should be ok since I am able to establish remote access.

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• How can I centralise MySQL data between 3 or more geographically separate servers?

  - by Andy Castles

  To explain the background to the question: We have a home-grown PHP application (for running online language-learning courses) running on a Linux server and using MySQL on localhost for saving user data (e.g. results of tests taken, marks of submitted work, time spent on different pages in the courses, etc). As we have students from different geographic locations we currently have 3 virtual servers hosted close to those locations (Spain, UK and Hong Kong) and users are added to the server closest to them (they access via different URLs, e.g. europe.domain.com, uk.domain.com and asia.domain.com). This works but is an administrative nightmare as we have to remember which server a particular user is on, and users can only connect to one server. We would like to somehow centralise the information so that all users are visible on any of the servers and users could connect to any of the 3 servers. The question is, what method should we use to implement this. It must be an issue that that lots of people have encountered but I haven't found anything conclusive after a fair bit of Googling around. The closest I have seen to solutions are: something like master-master replication, but I have read so many posts suggesting that this is not a good idea as things like auto_increment fields can break. circular replication, this sounded perfect but to quote from O'Reilly's High Performance MySQL, "In general, rings are brittle and best avoided" We're not against rewriting code in the application to make it work with whatever solution is required but I am not sure if replication is the correct thing to use. Thanks, Andy P.S. I should add that we experimented with writes to a central database and then using reads from a local database but the response time between the different servers for writing was pretty bad and it's also important that written data is available immediately for reading so if replication is too slow this could cause out-of-date data to be returned. Edit: I have been thinking about writing my own rudimentary replication script which would involve something like having each user given a server ID to say which is his "home server", e.g. users in asia would be marked as having the Hong Kong server as their own server. Then the replication scripts (which would be a PHP script set to run as a cron job reasonably frequently, e.g. every 15 minutes or so) would run independently on each of the servers in the system. They would go through the database and distribute any information about users with the "home server" set to the server that the script is running on to all of the other databases in the system. They would also need to suck new information which has been added to any of the other databases on the system where the "home server" flag is the server where the script is running. I would need to work out the details and build in the logic to deal with conflicts but I think it would be possible, however I wanted to make sure that there is not a correct solution for this already out there as it seems like it must be a problem that many people have already come across.

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• How to automate changing my ip?

  - by callisto

  I am very new to OSX. I will use my MBP at work and home. I would like to be easily able to switch my ip when changing location. Thus far I have dabbled with the automator, hoping to do something like this: [pseudocode] If IP = 192.168.0.10 root# changeip 192.168.0.10 10.0.0.15 else root# changeip 10.0.0.15 192.168.0.10 The reason for this is that my IP from home will not allow me access at work and vice versa. I have friends and family who drop in now and then, multiple wireless devices set up for the home IP range. Changing all of that to accommodate one new device (the Macbook) would make me reconsider my foray into OSX. I'd rather have the MBP adapt to me than I to it.

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• How to send Windows key over VNC to Linux from Windows?

  - by MJBoa

  Alright, so I'm running Linux with AwesomeWM on my home machine. I'm running x11vnc on that machine and I want to connect to it from a windows machine. So it suffices to say that I need the Windows key for my home machine to function. I really like TightVNC, but I have found that only RealVNC is able to send the Windows key presses that I need. My problem is that RealVNC is sorely lacking customization and I feel it's inferior to TightVNC and unusable. I know that Ctrl-Esc sends the windows key press in Tight but then I can't use it as a modifier key. Useless. Anyone have any ideas? I don't think it's a server issue since I've tried Tightvnc server on the linux machine and it still doesn't work, at least in TightVNC. It works with Real anyway. Oh and UltraVNC doesn't work either.

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• DNS updating issue

  - by Will

  Hey guys, I'm new to serverfault so please excuse me if I sound a tad nub. I work in an environment that is kinda peace mealed together, and I honestly don't know how it works. I'm new to the IT field and am still in school. When I replace a PC I rename the old one to mo-o-pcname and give the new one the proper name of mo-pcname (mo is a location thing we use so it really doesn't apply to the problem.) The new PC will function on the network; it will have the ability to access network resources (printers, file shares, etc) and it will have the ability to get out to the internet. However I can no longer ping the machine. It would appear as if the DNS (A) record is not getting updated or something. Like I said I'm kinda new to the field and just trying to work through this problem. Thanks for your help.

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• World Wide Publishing Service very slow to restart on IIS? Why?

  - by StacMan

  Every now and then, we look to restart our IIS server by restarting the "WWW Publishing Service". On most systems this would usually only take a minute or two, but this can often take up to 10 minutes to stop the server and restart. Does anyone know any way to work out what is taking so much time to stop the service? After reading up around the net I've learned this may be due to locked resources used by users and/or lower-level IIS cached items being recycled. But I cant seem to work out where I can validate if this is true on not. Also if anyone knows how to fix or speed this up, that would be excellent. We have a large codebase which contains over 280 aspx pages across the site. Our main domain contains about 100 aspx pages whilst the subdomains contain 15 or 20 each. Some specs: Code is written in C#; runs on .Net framework 2.0 Server Windows Web Server 2008 IIS7; DB running SQL Server 2008 Standard

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• How to set up server/domain name correctly in hosts file with HTTPS

  - by Byakugan

  I am trying to do local network and I am using these kind of types of network. 1) Main server which connects to internet with static IP 2) Second computer connected to first one locally with address like 192.168.0.2 - when I write this address to address line it is like i wrote localhost in original main server - so it should show my local web browser etc ... It has domain name this IP and connected router for it ... example www.domain.com so I added to my main server hosts file (linux powered) lines like these: 192.168.0.2 domain.com www.domain.com It was working ok when I entered my domain name in local computer it showed my site ... But after some time I added HTTPS cerfiticate and added this line to my apatche server: Redirect permanent / https://www.domain.com/ And now it does not work even when i add something like this to my hosts file: 192.168.0.2 https://www.domain.com So any idea how do do this thing work? Thank you.

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• Remapping Home/End from PC to Mac Via Synergy is not client specific.

  - by DtBeloBrown

  This question asks about the end key but the answers give no examples: http://superuser.com/questions/60052/what-key-works-like-end-using-a-mac-with-synergy If they had, I am guessing that they would likely have run into this problem. Adding lines like the bottom two of this: section: options keystroke(End) = keystroke(Control+Right,myiMac) keystroke(Home) = keystroke(Control+Left,myiMac) to my synergy.sgc in MyDocuments on the winXP machine would work but causes the keys to stop functioning on the winXP machine. Unacceptable. I next tried a compromise: keystroke(End) = keystroke(Control+Right,myiMac); keystroke(End,myPc) keystroke(Home) = keystroke(Control+Left,myiMac); keystroke(Home,myPc) Expecting that to broadcast the keystrokes to both machines regardless of which one was the Active Screen. That and many other variations did not work. What am I doing wrong? Has someone actually done this?

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• IIS SmtpSVC - Adding remote domains on the fly

  - by Andrej Pintar

  Since I am using SMTPSVC from IIS to send all mail out I have noticed some domains that reject mail regarding LFs and similar SMTP day to day basis problems. So I mostly re route these domains by using smarthosts. Now I aslo read that on IIS7 or most of them when you add a remote domain to domains you must restart SMTPSVC to take effect. I also enabled METABASE editing. So I also hoped that this will help me add remote domains on the fly. But it's not working. Should I use another SMTP: -hmailserver or similar to route DOMAINS by smarthost. We used a smarthost configuration before but ISP smarthost gets a lot on RBL Blacklist so mail comes back. Since DNS MX direct sending is more work because of troublesome domains now I got more work to monitor SMTP logs. Thank you in advance.

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• Can't type into some text fields in any browser on Windows 7

  - by Zoltán

  I can't type into e.g. facebook's log in form with my computer. I hit my keys, but nothing happens. Special characters like c, c, š, etc. work. Backspace doesn't, delete does. This goes for Internet Explorer, Firefox and Chrome. This also happens with some other sites, sometimes even with gmail (or any google's log in form). I read somewhere that the solution is to reregister some dlls: regsvr32 mshtmled.dll regsvr32 jscript.dll regsvr32 /i mshtml.dll The first two work, the third one says The module "mshtml.dll" was loaded but the entry-point DllRegisterServer.dll was not found. And of course, running just the first two didn't help. Does anyone know how to fix this problem?

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• Light Voip and IM server for small teams

  - by Sihan Zheng

  So I have a small group that would need a self hosted Im/voip and possibly video conferencing solution. My goal is for a small group of people (no more than 40) to be able to collaborate within a local area network. I need something that is self hosted, so unfortunately outside solutions like Skype and hosted Lync would not work. I'm looking for something that would allow both one on one, and group communication, so and IRC server would not work. I'm hopefully looking for something that does not require multiple servers, or is too complex to set up. As a student, I have a license of Lync 2013, but setting that up on a single server without active directory is practically impossible. Would Lync 2010 be easier to do on a single server? Are there any other good solutions? Thanks

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• How to setup a 1 way trust, Windows Server 2008 R2

  - by MichaelOz

  I am on my home network and connect to workplace via a VPN. I have a DC on my home network (DC1 , domain = home). How can I setup a 1 way trust, so that I am able to run executables, such as SQL Management Studio using RunAs - then type in credentials for work domain? First question is, will a 1 way trust solve this, and can I set this up without bothering a network admin at workplace (assuming I have a domain account with enough permissions on work domain) If yes - any good step by step guide to setup 1 way trust? Server is Windows Server 2008 R2. As mentioned its DC running DNS Role too. Thanks in advance

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• Problem running mercurial against symlinked .hgrc file under Cygwin/Windows 7

  - by emptyset

  This is not a question about handling symlinks in the mercurial repository. I have this setup at work where I keep my dotfiles in a separate directory (.configuration) that I can use to synch my dotfiles between cygwin/windows and linux, then use symlinks instead of dotfiles in the home directory. So, I have the symlink ~/.hgrc -> .configuration/.hgrc in my home directory. After setting this up, mercurial complains thus: $ hg st hg: config error at C:\Users\aaf\.hgrc:1: '!<symlink>ÿþ.configuration/.hgrc' Removing the symlink and replacing it with the actual file works, so the contents of the .hgrc file are not at fault. I can live with that, I suppose, but I'd like to know why this happens. All other tools I've configured the same way work great with symlinked dotfiles.

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• Caching without file extensions

  - by Sigurs

  I'm trying to use Varnish to show the non-logged in users a cached version of my website. I'm able to perfectly detect if the user is logged in or out, but I can't cache pages without extensions. There is no file extension because nginx is rewriting the URL to a php script(so caching .php does not work). For example I'd like varnish to cache: example.com example.com/forum/ example.com/contact/ I have tried if (req.request == "GET" && req.url ~ "^/") { return(lookup); } if (req.request == "GET" && req.url ~ "") { return(lookup); } if (req.request == "GET" && req.url ~ "/") { return(lookup); } but nothing seems to work... any help?

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• WYSIWYG editor for structured text (suitable for SVN versioning)

  - by chris_l

  I'm looking for an open source cross platform WYSIWYG editor that I can use to write documentation. I'm not looking for a web based solution - i.e. it should work without a web server, and I want to save my files directly to disk. The result could be any structured format, like Wiki markup, ReStructuredText, DocBook, or a small subset of HTML, ... But it's important, that Subversion diff can be used to see differences between the versions easily (this wouldn't work with .odt or .rtf files for example) I'm currently thinking about using Open Office, and saving the files as HTML, but is there a better solution?

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• Bootstrap a debian build environment and build source packages with no root privileges

  - by Erwan Queffélec

  On debian squeeze, I am trying to do the following : fetch sources package from the wheezy source repository bootstrap a squeeze chroot for several architectures build the packages for several architectures (i386, amd64 + all and any) I want both the fetching, bootstrapping and build operation to be scriptable, repeatable, and run as a normal user. For the environment setup, I want to make as little use of the root account as possible (install the necessary dependencies, and maybe some visudo stuff). If possible I would like to avoid using a VM (pbuilder with user mode linux) So far I have tried several things with pbuilder (require root), debootstrap (require root) with little success. Here is an example script of what I want to do (does not work): #/bin/bash set -e set -x this=`readlink -f $0` this_dir=`dirname $this` archs='i386 amd64 any all' pushd $this_dir/src # I actually want the following line to work with a repo that # is not in /etc/apt/sources.list but that is another question apt-get source cyrus-imapd-2.4 popd for arch in $archs do build_dir=$this_dir/build/$arch/ pbuilder --create --configfile $build_dir/pbuilderrc --buildresult $build_dir/ pbuilder --build --configfile $build_dir/pbuilderrc --buildresult \ $build_dir/ $this_dir/src/*.dsc # of course I want to use the .dput.cf in /home/myuser/ # and not in /root/ dput $build_dir/$arch/*.changes done

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• Create Windows 8.1 USB Boot Disk to Boot in OSX Maverick

  - by Pengan

  After I installed Mac OSX Maverick 10.9 to my Mac Computer. I have a problem with installing Microsoft Windows 8.1 into my Mac my using Bootcamp. I try some third party software such as Win USB Boot Maker and Rufus. These softwares can make USB Boot disk for non Mac computer however they cannot make it work with Mac. Does anyone know how to create a working Windows 8.1 USB Boot Disk to work with Mac computer which run OSX Maverick? Thank You! Pengan

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• Can't access VirtualBox host-only network from windows host

  - by Markus Orreilly

  I've got two vms running on a windows host, each with a host-only network and ips in the 192.168.56.XXX range. One of them is running apache and serving some content that I want to access from my windows host. However, the windows host can't access the apache server at all. The server is running on 192.168.56.103. ipconfig from windows says it's ip for the Virtual Box interface is 169.254.143.37. I tried route add to route 192.168.56.XX traffic, but everything I tried didn't work and I was probably using it wrong. Any ideas on how to make this work?

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• Using OpenVPN, yet netflix.com blocks access

  - by user837848

  I have set up an OpenVPN server on a VPS in the USA and configured it to route all clients traffic through it. Everything seems to work fine regarding the VPN connection in gerneral. All ip lookup sites show me the us server's ip address and even hulu.com works(it won't work if you are not in the usa). But for some reason netflix.com says "Sorry, Netflix is not available in your country yet.". So I thought that netflix probably uses some more sophisticated ways to determine your location beyond just your ip address. But I could not find a way to get it to work until I dropped the idea of using a VPN and instead connected to the server via a simple socks tunnel with ssh by running: ssh -D 9999 user@serverip All I had to do was changing the key network.proxy.socks_remote_dns in Firefox from false to true to prevent DNS leaks and setting up the socks proxy. Then I could finally watch netflix.com. As a result I concluded that there is nothing in the browser(or something like system timezone) that tells netflix the location, so it has to have something to do with the OpenVPN config. After that I used tcpdump to log all the traffic on the server's network interface venet0 (OpenVZ VPS), visited netflix.com on the client while first connected to the VPN and then connected via socks tunnel and afterwards compared both outputs. The only thing that caught my eye was that while using the socks tunnel the server mainly used ipv6 to connect to netflix whereas it only used ipv4 when the client was connected to the OpenVPN server. But I don't get how that could make such a difference. So what am I missing? Is there a way to configure OpenVPN to also use ipv6 to connect to a website although there is only an ipv4 connection between the VPS and the client? Here is the server.conf of the OpenVPN server (OpenVZ VPS) local serverip port 443 proto tcp dev tun ca ./easy-rsa2/keys/ca.crt cert ./easy-rsa2/keys/vps1.crt key ./easy-rsa2/keys/vps1.key # This file should be kept secret dh ./easy-rsa2/keys/dh1024.pem server 10.8.0.0 255.255.255.0 ifconfig-pool-persist ipp.txt push "redirect-gateway def1 bypass-dhcp" push "dhcp-option DNS 8.8.8.8" push "dhcp-option DNS 8.8.4.4" client-to-client keepalive 10 120 tls-auth ta.key 0 # This file is secret cipher AES-256-CBC comp-lzo max-clients 4 user nobody group nogroup persist-key persist-tun status openvpn-status.log log-append openvpn.log verb 3 iptables forwarding iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o venet0 -j SNAT --to-source serverip (enabled ipv4 forwarding) I have tried everything always on a Win7 and a Debian client with only ipv4 connections and always made sure that they use the correct DNS server (tested with ipleak.net and tcpdump / wireshark). client.conf: client dev tun proto tcp remote serverip 443 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert client.crt key client.key ns-cert-type server tls-auth ta.key 1 cipher AES-256-CBC comb-lzo verb 3

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• Remote connection IP to use

  - by petwho

  I have two laptops that both run on ubuntu and installed ssh server and ssh client on them. One is usually on my desk at home and one I usually bring to my company. When I'm at home I can easily ssh to one from the other by typing this command (to login to the other laptop whose IP address is: 192.168.0.105) : ssh -p 22 [email protected] However, When I'm at my company, I try to type the same command and ofcourse it doesn't work. I understand that when at home I'm on LAN network, that my laptops actually using my ISP's address which differ from 192.168.0.107 asummed 203.113.131.1. So could you tell me what IP that ssh shoud use for my laptop (at work) to connet to my computer at home? Thank you.

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• I need access control within the same network/VLAN

  - by Sadiq ali

  Hi, I have a single network/VLAN and I want to block some traffic and allow some traffic in my network, is this possible using a L2 or L3 switch? If so which switches support this feature and what would be the commands to configure this? I have already tried this using access lists by applying it to an ethernet port but if I apply it on one port it will automatically work on incoming traffic on that port but I mean it to work on only outgoing traffic as per my ACL. Do you have any suggestions please?

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• Blue Screen Of Death after Graphics Card Update

  - by John Smith

  I recently installed the game watch dogs After installing it i upgraded the drivers on my graphics card AMD Radion R9 200 series via the catalyst software and since then windows has been crashing on an ad-hoc basis even when sitting idle I have recieved two different sets of errors OXOOOOOOO1 and VIDEO_SCHEDULER_INTERNAL_ERROR I am running windows 8.1 with the driver 14.4 from AMD My PC shouldnt really be having this problem as it is pretty high spec due to my work Any help would be greatly appreciated as it is driving me up the walls a bit [UPDATE 08-06-2014] I have been looking around online and have crashed the PC a few times now trying to recreate the bug I have looked into the event history viewer and gotten the following errors amdacpusrsvc acpusrsvc: IOCTL_ACPKSD_KSD_TO_USR_SVC_SET_FB_APERTURES: FAILED acpusrsvc: GfxMemServiceInitialize: FAILED amdacpusrsvc acpusrsvc: IOCTL_ACPKSD_KSD_TO_USR_SVC_SET_FB_APERTURES: FAILED amdacpusrsvc acpusrsvc: GfxMemServiceInitialize: FAILED I took some advice from the AMD forums to re-install the old drivers to see if they would work. I uninstalled the old ones first and installed directly from the CD I got the warnings below but the driver installed "successfully" The Warnings are amdacpusrsvc acpusrsvc: ConfigureFrameBufferMemory: FAILED. Hopefully this will spark something off for someone Thanks John

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• How to disable Winamp agent in the taskbar?

  - by sunpech

  I remember the days when I could right click on the Winamp icon in the Windows taskbar, and select "Disable Winamp Agent", and it would actually disable and not appear again. This no longer seems to work on Windows 7 (or maybe Windows in general). Every time I restart my PC, it appears in the taskbar again. I like having my icons displaying in the taskbar. Which is why I have "Always show all icons and notifications on the taskbar" checked off. I have Winamp v5.571 installed on Windows 7 Ultimate. How do I properly turnoff the Winamp agent from appearing in the Windows taskbar? Right-click to disable doesn't work!

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• Top ten security tips for non-technical users

  - by Justin

  I'm giving a presentation later this week to the staff at the company where I work. The goal of the presentation is to serve as a refresher/remidner of good practices that can help keep our network secure. The audience is made up of both programmers and non-technical staff, so the presentation is geared for non-technical users. I want part of this presentation to be a top list of "tips". The list needs to be short (to encourage memory) and be specific and relevant to the user. I have the following five items so far: Never open an attachment you didn't expect Only download software from a trusted source, like download.com Do not distribute passwords when requested via phone or email Be wary of social engineering Do not store sensitive data on an FTP server Some clarifications: This is for our work network These need to be "best practices" tips for the end-user, not IT policy We have backups, OS patches, firewall, AV, etc, all centrally managed This is for a small business (less than 25 people) I have two questions: Do you suggest any additional items? Do you suggest any changes to existing items?

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• DHCP over WiFi on CentOS 6 [closed]

  - by dongle26

  Using CentOS 6 I cannot get my WiFi interface to configure over DHCP. Here is my ifcfg-wlan0: This does not work (although it is correct): DEVICE=wlan0 BOOTPROTO=dhcp ONBOOT=yes HWADDR=xx:xx:xx:xx:xx:xx TYPE=Wireless This works: DEVICE=wlan0 BOOTPROTO=none ONBOOT=yes IPADDR=192.168.0.253 NETMASK=255.255.255.0 DNS1=192.168.0.99 GATEWAY=192.168.0.99 HWADDR=xx:xx:xx:xx:xx:xx TYPE=Wireless I don't want a static IP address, I want a DHCP assigned address. Update: Both of the above configs are correct. Please don't downvote, this really didn't work for me. It must be a bug in CentOS or my wireless driver. See my answer for details.

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