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• VMware postfix server drops connection

  - by nicoX

  Our physical server godzilla forwards mails to our virtuall VMware server b4. They are on the same net. Often connection drops, we can't ping godzilla with our b4. That means mails from godzilla won't reach b4 and the mails will be in handed into the mailq. Sometimes it takes some hours and the issue will auto fix itself, b4 will wake up and the mail will be delivered. Another thing if we remotely ssh into the b4, the b4 will wake up and and receive any mailq mails from godzilla and deliver them. netadmin@b4:/var/log$ arp -a ? (192.168.209.80) at 00:1E:C9:AE:79:9D [ether] on eth0 root@godzilla:/usr/local/bin# arp -a ? (192.168.209.20) at 00:50:56:91:7d:b2 [ether] on eth0

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• Windows Server 2008 SOMETIMES blocks connection to an FTP Site

  - by ssilver2k2

  Hello Everyone Recently, our company has been having issue connecting to a special FTP server that we use offsite to upload small files. We can connect to the test server perfectly fine, but when we use the production ftp, it only randomly connects. If I plug my laptop directly into the modem and pull one of our other static IP addresses, I can connect just fine, but if I use our internal network, it is hit or miss. Also, turning OFF the firewall does NOT change the status of our connection problems. It will still time out. The weird issue is that it sometimes works, and when it does, it instantly asks for credentials and logs us on for that session, but if we disconnect and try again, it may or may not work. This also coincidentally occurred after uninstalling hamachi, and it blew away our internet settings on our Windows Server 2008 box, but everything else is working fine, and it was working fine before hamachi was installed.

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• vncviewer connection refused (61)

  - by coure2011

  I have a root access to VPS (centos 6). I have installed VNCServer using this guide line http://tournasdimitrios1.wordpress.com/2011/02/02/how-to-setup-vnc-server-on-centos-5-x-fedora-11/ Everything goes perfectly and server is running via termina. Now I am trying to connect to that server via vncviewer (mac os). but its giving me error Connection refused (61) I am providing only the IP address of the VPS, maybe I also needed port address? How to configure port on vncserver? or its something else?

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• LAN connection suddenly domain_not_set.invalid

  - by Liam Coates

  I went to work today - internet fine as always. Came back, dreaded yellow triangle. I can connect wirelessly like i am now on my tablet. Thats completely fine. But through LAN I get the domain_not_set.Invalid message if I renew my IP for example. It seems I just don't have a DNS. But I have literally not touched anything no ones even been in the house. Hows that happen? Any help on why only wireless works would be great, I am gonna buy a wireless adapter tomorrow for the interim but I would like to know why. Thanks.

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• Communicate from PC in internet to remote GSM device

  - by Jakub Jezik

  I have several remote devices that use GSM modem and gather data. I need to communicate with those devices from a PC station located in a office using the dial up connection. Is there a way to do this WITHOUT an additional GSM modem connected to that PC? Is there some way to accomplish PC to remote GSM device communication using e.g. VoIP or similar technology? I want to avoid installing an additional GSM modem in the office and use some software solution instead.

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• Unable to Uninstall Exchange 2010 ("Internet Newsgroups" public folder)

  - by helplessITguy

  I am trying to uninstall Exchange 2010, before installing a new instance of Exchange 2010 SP1 on a different server. (Our production Exchange server is 2003) We have met all of the Mailbox uninstall prereqs except for the following: Error: Uninstall cannot continue. Database 'Public Folder Database 1579722947': The public folder database "Public Folder Database 1579722947" contains folder replicas. Before deleting the public folder database, remove the folders or move the replicas to another public folder database. For detailed instructions about how to remove a public folder database, see http://go.microsoft.com/fwlink/?linkid=81409&clcid=0x409. Recommended Action: We have been able to delete all Public Folders in the 2010 storage group except for the one (previously replicated) folder - "Internet Newsgroups". How can I delete this folder without impacting public folders on the production Exchange 2003 server? We have: verified permissions to the public folder removed replication for the folder on (on the Exch 2010 server) tried PowerShell scripts: RemoveReplicaFromPFRecursive Get-PublicFolder -Server "\" -Recurse -ResultSize:Unlimited | Remove-PublicFolder -Server -Recurse -ErrorAction:SilentlyContinue

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• Route eth0 to internet traffic and eth1 to local traffic

  - by Romain Caire

  How can I route all my internet traffic on eth0 (everything except 192.168.1.0/24) and route my local traffic through eth1 (192.168.1.0)? Here is my attempt : # Flush ALL THE THINGS. ip route flush table main # Restore the main table. I flushed it because OpenVPN does weird things to it. ip route add 127.0.0.0/8 via 127.0.0.1 dev lo ip route add 0.0.0.0/0 via 164.67.195.1 ip route add 192.168.1.0/24 via 192.168.1.1 ip route flush cache

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• remote desktop connection help?

  - by robin agrahari

  sir, i have created a web application in eclipse,db2 database server is running on my pc.so i can access the web application through the address http://localhost:8080/LimsWeb i used team viewer software to establish a remote desktop connection. can my friend somehow connect to my pc so that when he types the above url in his browser he will be able to fetch the pages of the application. i was able to do this by connecting with remote desktop mode.but in that case my friend was able to use the application which i created running on my pc only and in the window provided by team viewer.i want that he can run the application on his own computer calling the given url from his own browser. please help

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• Why is my ftp connection timing out?

  - by NEPatriot

  This is the log info: Status: Connected Status: Retrieving directory listing... Command: PWD Response: 257 "/" is your current location Command: TYPE I Response: 200 TYPE is now 8-bit binary Command: PASV Response: 227 Entering Passive Mode (173,201,145,1,199,43) Command: MLSD Error: Connection timed out Error: Failed to retrieve directory listing The strange thing is that I've set the transfer mode to active... I've called my hosting company support and they're able to connect to this server using my ftp credentials. I've also tried to connect on another machine on my network and have the same issue. Could it be the firewall? My ISP?

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• Reverse SCP over SSH connection

  - by pavpanchekha

  I pretty often need some file from some server when I'm on my laptop. But if I don't know where that file is, I have to ssh into the server, look around, exit, and then scp server:file .. If I'm working with my desktop and my server, both of which have static IPs, I can just SCP the file in reverse (scp desktop:~ file), but I can't do that for my laptop. Is there any nice way to SCP a file backwards over an SSH connection? So that the computer I connect to with SSH sends a file backwards to the client?

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• Aventail VPN connection doesn't work

  - by Warlax

  I installed the Aventail VPN client on both the Mac and a Windows 7 machine, both on my home network. When I try to connect one or the other (I make sure one is disconnected before connecting through the other machine), I get a connection and view the correct certificate - accept it and Aventail tells me that I am connected. However, accessing any page inside my company's network is only possible on Windows. On the Mac I get this page: It looks like my ISP doesn't know how to redirect me? Maybe something about my DNS being set incorrectly on the Mac? Our helpdesk has been completely useless.

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• Open file in local text editor from within an SSH connection

  - by Sam

  I'm not a vim guy. I'd like to be able to open log files in Sublime Text when in an SSH connection from within Terminal. Is there a way I could do this? I'm thinking there must be a command or something that could copy the file over to a temporary directory in OS X and then open it in Sublime Text, and when I save it, it'll copy back to the original location through SSH; similar to how FileZilla does it. I'm on Mac OS X MT. The server I SSH into is running Ubuntu. I'm using Terminal.

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• Internet Explorer 9 send page by email grayed out

  - by catester

  Internet Explorer 9 in Windows 7 Home Premium 64-bit has the items Send Page by email and Send link by email grayed out. The default email client is Windows Live Mail 2011. I have used the "Set Default" dialogs to do that. Everything else recognizes Windows Live Mail 2011 as the default, including Firefox 4. I have duplicated this problem on two computers here. I have changed the default email program to Mozilla Thunderbird on one of the computers, and IE9 won't let me Send Page by email or Send link by email there, either. Has anyone gotten this to work? Firefox is my default browser, but sometimes I have to use IE9.

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• Project Server 2010 site creation - the database connection string is not available

  - by Brandon Montgomery

  I am trying to get Project Server 2010 up and running on a Win Server 2008 box. I've got Sharepoint 2010 installed and Project Server 2010 installed. I open SharePoint Central Administration, then I go to Manage Service Applications Project Server Service Application. It looks like there is a site under the "Sharepoint - 80" section, but the Status says "Failed - see the Application event Log". When I click on the site and select "Retry" I get the same thing. In the event viewer, I see an error with SharePoint Foundation Search as the Source - it reads: Could not create a database session. Context: Application '276504a6-93b1-4c1f-a900-fd6ed9d5c117' Details: The database connection string is not available. (0xc0041228) How can I fix this? Is there some configuration I missed?

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• Error when I try to connect to a SQL Server 2005 from the internet

  - by Manish

  My SQL Server is on a local machine. I want to access it through internet. I created a website through I want to connect local SQL Server 2005. This is the error message: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) Thanks for a reply!

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• rsync server side limit bandwidth/connection

  - by c2h2

  In a VOIP application, I have upto 3000 clients rsync audio files from there linux server in a daily, server is placed at a data center (10Mbps in/out bound), the server works as a VOIP sip server running FreeSWITCH (low ping latency should be ensured.) Therefore I would like to have server side control of rsync which controls: Limit total outbound bandwidth. Limit total number of connections. (Reject clients while at max number of connection and let it retry after a specific time frame.) OPTIONAL: list/kill individual connections. Normally I would use ssh + rsync + pem_keys with some extra options, but above requirements are not feasible by simple command lines. Can anyone point me some direction. or show some scripts/tools? I would also probably integrate them and release on github. Thanks!

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• TS connection lost but not local

  - by Owl

  I have an office that is connected to a shared db server and terminal services server, that other offices use as well, through a vpn tunnel. For some reason all workstations in the office will lose connectivity to the remote address but will remain connected to their local internet. I have checked both firewalls to ensure all settings match accordingly. They seem to go down at routine times every day and it doesn't last longer than a minute or two. Any ideas of what this may be? OS: Windows Server 2003R2 Terminal Services 5.2 Symantec Gateway 320 & Symantec Firewall/VPN 100

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• Debian PPTP VPN can't get out to the internet

  - by phidah

  I've setup a Debian pptp server which seems to be running fine. I can successfully access the local services on the server when connected to the VPN, but I cannot go out of the LAN, i.e. I cannot just go to any server out on the internet. I guess this is come kind of routing issue that won't allow me to use the server as a gateway? I couldn't really find any articles or similar that could tell me how to set this up properly. Thanks in advance.

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• Can't connect to Internet through WiFi, but can with cable

  - by aldy505

  I'm using Windows 7 32-bit, Toshiba Portege laptop. I want to connect to the WiFi, usually I can do that easily. But, I don't know.. maybe when I tried to install a Microsoft Research: Mesh Virtual WiFi that could connect more than 2 wireless networks. I wanna try in connecting both Wireless router and my personal Ad-Hoc. Now, my laptop don't recognize my WiFi, well, I can connect to the WiFi but it says: "Limited access" and doesn't really connect to the internet. But when I plug the LAN cable, it works. I know the problem is in the laptop's wireless connection or in the properties. Any help for this? UPDATE: The IP and DNS settings, I set to automatic, and when I ran diagnostic, Windows tells me that the wireless network adapter is the problem, but they told me to insert the LAN cable, so how to fix the wireless? They didn't tell me how to fix that.

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• Cross subnet connection

  - by user30472

  My internal Windows 2008 AD network is 172.20.xxx.xxx My Apple Wireless base stations only allows DHCP 172.16.xxx.xxx Private IP address ranges: 10.0.0.0 to 10.255.255.255 172.16.0.0 to 172.31.255.255 192.168.0.0 to 192.168.255.255 The problem: The internet works from my IPad that has a 172.16.xxx.xxx address, but I can't access (browse) my tools server that is 172.20.xxx.xxx that host my Filemaker database. Is it possible to add 172.16.xxx.xxx range somewhere in DHCP or DNS on my Windows domain server so I can access tools? Or is there another way to make this connection work? Thanks

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• wifi connection turns off oll the time

  - by er-v

  Hello! I realy need help with one strange problem. I have a wifi network in my appartment with wireless N home router Trendnet tew-652BRP. Everething work fine for three of my laptops, but I have one PC with D-Link DWA-140 adapter. It looses connection 2-3 times in 5 minutes. There is following messages in my system log when it does so: The browser has forced an election on network \Device\NetBT_Tcpip_{9537A5C1-3B43-4C56-B94C-CE69A257C3AD} because a master browser was stopped. The TCP/IP NetBIOS Helper service was successfully sent a stop control. The reason specified was: 0x40030011 [Operating System: Network Connectivity (Planned)] Comment: None The TCP/IP NetBIOS Helper service entered the stopped state. in order of appearence. How can I stop it? I have the latest driver installed.

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• backup, sync and search files over internet and intranet

  - by Cawas

  There are many online backup options out there. Dropbox, Sugarsync, Mozy, Carbonite, Jungledisk and my favorite so far, Crashplan. Some of them allow searching, all of them sync with their online servers, none of those (or many many others I didn't listed here) have what I want. I'm _not_ looking for an online backup service in here. Sure, some people might say "use rsync", "linux" and/or "set up apache" and so on... But that's just too much for maintenance, if it's even viable of building up. It needs to be simple. So, anyone knows of a really good solution out there? Picture mostly Google Desktop Search (or quick search) awesome searching, mixed with Crashplan Desktop, which is able to do everything by itself, and something like Dropbox's file versioning, along with dropbox the ability to seamless sync over intranet and internet like crashplan, switching between them when needed. I bet there's nothing like this yet, but well, I'm not sure. It would be great!

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• Configuring bridged network connection --- Windows 7 host, Ubuntu 10.04 guest --- VMWare Workstation 8

  - by H3br3wHamm3r81

  Here is my IPCONFIG /ALL from the host (Windows 7 64-bit): Here is my IFCONFIG from the guest (Ubuntu 10.04): To be honest, I don't have experience configuring a network between a host and a guest in VMWare (a virtual machine). I've searched high and low on the internet, but I haven't seen anything that can help. Perhaps I'm just not using the right keywords when I search. Nevertheless, does anyone here have any experience with establishing a network connection? Edit: One important note. I don't use DHCP to provide private addresses to the hosts on my LAN. I use "static" IP addresses on my internal network by configuring each IP address manually in the host's network configuration utility (I have TV's, XBOX 360, and a few PC's). I would like to configure the IP on the virtual machine guest manually as well. The reason is because my XBOX 360 only works properly using a static IP address. It will kick me off XBOX Live if it has one given by the router (via DHCP).

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• Squid closing the connection on long HTTP GET requests

  - by Rhys

  When running a database query on a specific external site we use, Squid seems to cut off the connection after a consistent period of time (just over a minute). The query is submitted through a standard web form is that uses GET to query their database. Firefox 3 just displays a blank page. Internet Explorer throws a 'Page Cannot Be Displayed' error (tested in v6 and v8). When we perform the same query on the same machine, but bypass the Squid proxy, it works fine. The query takes about two and a half minutes to complete. There are a few timeout settings in Squid, but I honestly don't know what one to be looking at. Any possible solutions would be much appreciated. Cheers

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• Unable to delete files in Temporary Internet Files folder

  - by Johnny

  I'm on Win7. I have a large number of of large .bin files, totaling 183GB, in my Temporary Internet Files folder. They all seem to come from video sharing sites like youtube. The files are invisible in Explorer even after allowing viewing of hidden files. The only way I can see them is by issuing "dir /fs" on the command line. Now when I try to delete them from the command line nothing happens. Trying to delete the whole folder from Explorer results in access denied because another process is using a file in the folder (IE is not running while I'm doing this). Trying to clear the folder using IE is also unsuccessful. How do I delete these files? How did they end up being there without being deleted by IE?

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