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  • Forwarding requests throught Apache to openVPN

    - by Ency
    I am wondering if it is possible to redirect requests through Apache to eg. OpenVPN. As long as I need to bypass firewall, I need to use port 80/443 for openVPN, but there is Apache server which has both port for itself. Client ---> Firewall (allows 80/443 only) --->| ---> Apache (80/443) ---> OpenVPN (1194) | -------------------------------------------- My Server I was thinking about mod_proxy, but I am not sure if it is good idea, have you got any ideas? I hope possible solution will be applicable on virtual host as well.

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  • Which topics do I need to research to enable me to complete my self-assigned "Learning Project"?

    - by Anonymous -
    I want to continue learning C#. I've read parts of a few books recommended on here and the language is feeling more familiar by the day. I'd like to tackle a mid-sized personal project to take my expertise to the next level. What I'd like to do, is create an application that 'manages expenses', that runs on multiple machines on a LAN. So for example, say we have person1 and person2 on seperate machines running the application, when person1 enters an expense, it will appear on person2's (pretty UI) view of the expenses database and vice versa. What topics do I need to research to make this possible for me? I plan on learning WPF for the UI (though the steep learning curve (or so I'm told) has me a little anxious about that at this stage. With regards to the database, which database would you recommend I use? I don't want a 'server' for the database to run on, so do I need to use an embedded database that each client machine runs a copy of that updates to each other (upon startup/entering of expense on any machine etc)? What topics under networking should I be looking at? I haven't studied networking before in any language, so do I need to learn about sockets or?

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  • Emailing Service: To or Bcc?

    - by Shelakel
    I'm busy coding a reusable e-mail service for my company. The e-mail service will be doing quite a few things via injection through the strategy pattern (such as handling e-mail send rate throttling, switching between Smtp and AmazonSES or Google AppEngine for e-mail clients when daily quotas are exceeded, send statistics tracking (mostly because it is neccessary in order to stay within quotas) to name a few). Because e-mail sending will need to be throttled and other limitations exist (ex. max recipient quota on AmazonSES limiting recipients to 50 per send), the e-mails typically need to be broken up. From your experience, would it be better to send bulk (multiple recipients per e-mail) or a single e-mail per recipient? The implications of the above would be to send to a 1000 recipients, with a limit of 50 per send, you would send 20 e-mails using BCC in a newsletter scenario. When sending an e-mail per recipient, it would send 1000 e-mails. E-mail sending is asynchronous (due to inherit latency when sending, it's typically only possible to send 5 e-mails per second unless you are using multiple client asynchronously). Edit Just for full disclosure, this service won't be used by or sold to spammers and will as far as possible automatically comply with national and international laws. Closed< Thanks for all the valuable feedback. The concerns regarding compliance towards laws, user experience (generic vs. personalized unsubscribe) and spam regulation via ISP blacklisting does make To the preferred and possibly the only choice when sending system generated e-mails to recipients.

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  • Setup mail server on VPS?

    - by user41010
    This is a n00b question, sorry. I have a site running on a VPS, now I want to be able to receive mails at [email protected]. How do I need to set up the server? And how should I set up the mail client on my PC to receive those mails? The server is running CentOS/RHEL. I'll really appreciate if someone shed some light on the steps that need to be taken. It will be really helpful. Thanks in advance!

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  • SSH - SFTP/SCP only + additional command running in background

    - by Chris
    there are many solutions described to get ur SSH-connection forced to only run SFTP by modifying the sshd_config by adding a new group match and give that new group a Forcecommand internal-sftp Well that works great but i would love to have a little more feature. My servers automatically ban IP's which try to connect often in a short time. So when you use any SFTP-Client, which opens multiple connections to work faster it can get banned instandly by the server for a long time. The servers have a script to whitelist users by administrator. I've modified this script to whitelist the user, which runs the script. All i need to do is now get the server to execute that script, when somebody logins. On SSH it's no problem, just put it in .bashrc or something like, but the Forcecommand don't runs these scripts on login. Is there any way to run such a shellscript before or at the same time as the Forcecommand get fired?

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  • Get-Mailbox not returning all mailboxes

    - by rotard
    I am trying to set up an exchange mailbox backup job with Vembu Storegrid and StoreGrid is unable to list the mailboxes for the client. While I was troubleshooting the issue, I did notice another thing: running the Get-Mailbox command on the mail server as the backup user only shows the mailbox for that account, while running Get-Mailbox as my admin account returns a list of what appears to be all the mailboxes. My service account is a member of "Administrators", "Domain Admins", and "Domain Users". What additional permissions might be required to list all mailboxes in the system?

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  • Applications starts very slowly from a network path

    - by Snowfox
    Hi We have a windows 2008 server which hosts the network share \\srvcompany\lib. This share contains several applications needed for the daily business. Every client/user (all win xp) has shortcuts on the desktop to these apps. We have the problem that at several (but not all) clients the apps starts very slowly. If I copy the application's programm files to a local folder then they'll start fastly. When I watch the memory usage in the task manager on such a "slow" machine while an applications starts I notice that the memory usage grows much slowier than when I start the app from a "fast" machine. But when I copy files with Windows Explorer from this share, the speed is nearly the same. I've also checked the network driver, both tested clients have the same network card with the same driver version. Has anyone an idea where or what I should check next to solve this problem? Thanks for answers.

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  • Restarting nginx backends without losing requests

    - by Oli
    I'm sure it's been asked before in different words but I run several Django sites via uwsgi (emporer mode) behind nginx. It's all a fairly standard configuration but I find that if I restart the central uwsgi process, nginx just bombs out 502s rather than waiting for the socket to become available. I recognise that most of this is probably for a reason but people seeing 502 errors really stings me. It's certainly not something I want a client to see. So... Can I beg nginx to wait/retry backends? Or, Is there anything (other than the obvious) I can do to minimise commercial damage from uwsgi restarts?

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  • monitor internet bandwidth on LAN

    - by Dimal Chandrasiri
    I'm on a office network and there are around 12 PCs that are connected to a switch and then to a Prolink Router. Now the Internet connection is very slow and I'm the one who manage all the computers. I want to monitor bandwidth usage of each computer on the LAN. how can I achieve this using my computer. I cannot install any software on the client computers other than mine. I tried wireshark but, it only shows my network usage so there is no use with the data I get from it. Is there any specific software that I can use within my PC to get the bandwidth details of other computers. I'm on a windows 7 x64bit PC with admin privileges. Thank you.

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  • Clients can make maximum only 15 connections to ubuntu custom server

    - by gtan
    I have a custom server in C# being run on Ubuntu 9 under mono. I can make up to 15 silverlight clients connect to the server. When I make the 16th, it just waits. And if I close one of the established connections, the 16th client is able to connect. I am making the connections from one machine. I am also not exceeding any file handle limit. The limit is 1024 and I am having around 300. Any ideas how to make more connections? Also why the number 15? Is it something linux-specific? EDIT: I have run the same server on an Ubuntu 11.10 virtual machine and was able to make more than 15 connections. I presume it's a configuration problem on the Ubuntu 9 machine then. Any help on that?

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  • Whats the best way to deal with backups for my php/mysql application

    - by spirytus
    I'm creating php application for my client and now thinking what would be the best way to do backups, automatically if possible? I don't have much experience in this area and in case something goes wrong, or if I need to migrate, I would like to have fast way of getting it all back online. I understand "something goes wrong" is a very wide term, but lets say that someone hacks my site and wipes out database and all the files. My app. is written in php/mysql and I got access to cpanel (hosted with justhost.com if that makes any difference :). I used Joomla and it has JoomlaPack that does complete backup almost automatically and in case site fails, its easy to revert, or migrate if necessary. Is there anything like that for my configuration that would make reverting/migration, easy?

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  • What are possible reasons why a calendar entry in OWA is at a different time than in Outlook?

    - by Ken Pespisa
    We have two Exchange 2003 servers, our primary server and a front-end server that hosts Outlook Web Access (OWA). When I open my boss' calendar via Outlook 2007 (from my Outlook client as well as hers) I see the event scheduled for 10:30 am. When I open her calendar via Outlook Web Access, the same event is scheduled for 4:30 am. I don't understand Exchange well-enough to imagine how this is possible. If you have any ideas why this could be happening, I greatly appreciate it. I'd also very much appreciate any insight you have to how this could be possible. There must be some cached data on the front-end server that causes the calendar entry to appear at a different time, I suppose. Any insight into how Exchange manages that cache and where I could look for an issue would be very helpful. Thank you!

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  • Remote desktop auto start session on workstation login

    - by me2011
    I am setting up Remote Desktop Services for use by one of our remote offices. The workstations at the remote office are all Windows 7 Pro, joined to the domain. There is nothing installed on the local workstation othern than the Win7 OS. The remote and main office are linked via VPN. The workers will login to the local workstation, using their domain login, then right now double click an icon on the desktop which will do the RDP to the Remote Desktop Server. This does work fine, but requires some user education. Is there a way that when the user logs into the local workstation, it will start the RDP session right away and pass their username/password through as well? Would using a thin client PC do what I am asking? Thanks.

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  • Video streaming and internet browsing on different bands/frequency

    - by user47207
    I have a Netgear WDNR37000 which allows clients on a 2ghz or 5ghz to access the internet and see every client and device on the network. I have a computer with two nics, one that is in the 2ghz range and the other on the 5ghz range. My specific problem is that I would like to serve my video streams (hulu, ps3mediaserver, playon) to my ps3 on the 5ghz band while internet browsing is routed to the 2ghz band. This is so that the video streams aren't affected by general internet use. While the easiest solution would be to disable internet access on the 5ghz apn, I would like to know of a solution that would not require that.

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  • Video streaming over multi display units

    - by ramdaz
    We have to share video across around 4/8 terminals at a public facility where we need to display live video from within the facility, as well as display messages(advertisements), and also play videos(not live) which need to be controlled centrally from another location. We can do central location handling over Internet, over ssh. What we want to do is connect cameras to a computer, and use the computer to display over multiple display units. We need to do live titling if possible. Once the live local telecast which usually takes about an hour or two a day, we would like to play other videos locally off the PC server. Preferably everything should run off Linux, since budgets are very constrained.... Addendum -- Its not over WAN, it's over a local area. I prefer not using LAN, we would rather use co-axial cable if possible. The reason is if it's LAN, I need some kind of an Networking device, at least a thin client

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  • MySQL server simple insert/update/delete queries are taking a long time to execute

    - by ElGabbu
    We have a VPS hosting server with a MySQL server running on it. We host several databases for client's websites. Recently we have noticed that insert/update and delete queries are taking a long time to execute sometimes as close as 30 seconds. I use the following command to see these queries being executed: watch -n1 mysqladmin proc stat We have still not been able to track the root of this problem. I would apprecite if anyone had any pointers as to what we can check or improve to resolve the issue. Thanks

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  • CSMA between APs in same channel & different SSID ?

    - by Ranganathan
    Would be great if someone clarifies this doubt. Lets assume two Wireless Access Points AP1 & AP2 with these conditions 1. both in the same 802.11 standard 2. same channel 3. using different SSIDs (just like in adjacent apartment houses). In this case, do these two Access points (and the clients associated to them) coordinate via CSMA/CA ? ie., if one of the AP's or a client station is about to transmit, does it wait & observe the other AP's & its clients' transmission before sending the frame in air ? Also, do the clients associated with these different APs coordinate via CSMA/CA ?

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  • Cross-platform centralized desktop password manager

    - by Dave
    I have been using KeePass as a desktop password manager on Windows for many years. Love it! However, I am now needing to work on different platforms much of my day (Windows 7, Windows XP, Mac OS X, Ubuntu, and OpenSUSE.) I'm looking for a password manager I can share across all these platforms. My ideal solution would: Run natively (not in a virtual machine) on all platforms. Store the "official" copy of the password data on a local network so I can get to it from any and all machines. It is OK if it locks (or becomes read-only) when one client is accessing it. Keep a local cached copy (read-only is fine) so I can still get to my passwords when disconnected from the network. Does any such beast exist?

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  • How to match responses from a server with their corresponding requests? [closed]

    - by Deele
    There is a server that responds to requests on a socket. The client has functions to emit requests and functions to handle responses from the server. The problem is that the request sending function and the response handling function are two unrelated functions. Given a server response X, how can I know whether it's a response to request X or some other request Y? I would like to make a construct that would ensure that response X is definitely the answer to request X and also to make a function requestX() that returns response X and not some other response Y. This question is mostly about the general programming approach and not about any specific language construct. Preferably, though, the answer would involve Ruby, TCP sockets, and PHP. My code so far: require 'socket' class TheConnection def initialize(config) @config = config end def send(s) toConsole("--> #{s}") @conn.send "#{s}\n", 0 end def connect() # Connect to the server begin @conn = TCPSocket.open(@config['server'], @config['port']) rescue Interrupt rescue Exception => detail toConsole('Exception: ' + detail.message()) print detail.backtrace.join('\n') retry end end def getSpecificAnswer(input) send "GET #{input}" end def handle_server_input(s) case s.strip when /^Hello. (.*)$/i toConsole "[ Server says hello ]" send "Hello to you too! #{$1}" else toConsole(s) end end def main_loop() while true ready = select([@conn, $stdin], nil, nil, nil) next if !ready for s in ready[0] if s == $stdin then return if $stdin.eof s = $stdin.gets send s elsif s == @conn then return if @conn.eof s = @conn.gets handle_server_input(s) end end end end def toConsole(msg) t = Time.new puts t.strftime("[%H:%M:%S]") + ' ' + msg end end @config = Hash[ 'server'=>'test.server.com', 'port'=>'2020' ] $conn = TheConnection.new(@config) $conn.connect() $conn.getSpecificAnswer('itemsX') begin $conn.main_loop() rescue Interrupt rescue Exception => detail $conn.toConsole('Exception: ' + detail.message()) print detail.backtrace.join('\n') retry end

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  • Get name (address) of computer from which from which SSH login was made.

    - by amicitas
    After logging onto a linux machine via SSH, I would like to be able to retrieve the name of the computer from which the connection was made. Ideally I am looking for some command like hostname or uname but that would retrieve the name of the client instead of the host. This information must be accessible somewhere, since when I log on I get a message that contains the clinent name from the last login: Last login: Thu Mar 11 18:42:01 2010 from my.address.com The reason for wanting to do this is to be able to take different action in my .login file depending on which computer I am using for connection is from.

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  • Reportviewer stored procedure [closed]

    - by Liesl
    I want to write a stored procedure for my invoice reportviewer. After invoice is generated in reportviewer it must also add the data to my Invoice table. This is all my tables in my database: CREATE TABLE [dbo].[Waybills]( [WaybillID] [int] IDENTITY(1,1) NOT NULL, [SenderName] [varchar](50) NULL, [SenderAddress] [varchar](50) NULL, [SenderContact] [int] NULL, [ReceiverName] [varchar](50) NULL, [ReceiverAddress] [varchar](50) NULL, [ReceiverContact] [int] NULL, [UnitDescription] [varchar](50) NULL, [UnitWeight] [int] NULL, [DateReceived] [date] NULL, [Payee] [varchar](50) NULL, [CustomerID] [int] NULL, PRIMARY KEY CLUSTERED CREATE TABLE [dbo].[Customer]( [CustomerID] [int] IDENTITY(1,1) NOT NULL, [customerName] [varchar](30) NULL, [CustomerAddress] [varchar](30) NULL, [CustomerContact] [varchar](30) NULL, [VatNo] [int] NULL, CONSTRAINT [PK_Customer] PRIMARY KEY CLUSTERED ) CREATE TABLE [dbo].[Cycle]( [CycleID] [int] IDENTITY(1,1) NOT NULL, [CycleNumber] [int] NULL, [StartDate] [date] NULL, [EndDate] [date] NULL ) ON [PRIMARY] CREATE TABLE [dbo].[Payments]( [PaymentID] [int] IDENTITY(1,1) NOT NULL, [Amount] [money] NULL, [PaymentDate] [date] NULL, [CustomerID] [int] NULL, PRIMARY KEY CLUSTERED Create table Invoices ( InvoiceID int IDENTITY(1,1), InvoiceNumber int, InvoiceDate date, BalanceBroughtForward money, OutstandingAmount money, CustomerID int, WaybillID int, PaymentID int, CycleID int PRIMARY KEY (InvoiceID), FOREIGN KEY (CustomerID) REFERENCES Customer(CustomerID), FOREIGN KEY (WaybillID) REFERENCES Waybills(WaybillID), FOREIGN KEY (PaymentID) REFERENCES Payments(PaymentID), FOREIGN KEY (CycleID) REFERENCES Cycle(CycleID) ) I want my sp to find all waybills for specific customer in a specific cycle with payments made from this client. All this data must then be added into the INVOICE table. Can someone please help me or show me on the right direction? create proc GenerateInvoice @StartDate date, @EndDate date, @Payee varchar(30) AS SELECT Waybills.WaybillNumber Waybills.SenderName, Waybills.SenderAddress, Waybills.SenderContact, Waybills.ReceiverName, Waybills.ReceiverAddress, Waybills.ReceiverContact, Waybills.UnitDescription, Waybills.UnitWeight, Waybills.DateReceived, Waybills.Payee, Payments.Amount, Payments.PaymentDate, Cycle.CycleNumber, Cycle.StartDate, Cycle.EndDate FROM Waybills CROSS JOIN Payments CROSS JOIN Cycle WHERE Waybills.ReceiverName = @Payee AND (Waybills.DateReceived BETWEEN (@StartDate) AND (@EndDate)) Insert Into Invoices (InvoiceNumber, InvoiceDate, BalanceBroughtForward, OutstandingAmount) Values (@InvoiceNumber, @InvoiceDate, @BalanceBroughtForward, @ OutstandingAmount) go

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  • Emails disappear when moving from Inbox to anywhere else

    - by Jason T.
    Whenever a client of mine has a message open, they click on Move To Folder and the list of recent folders comes up. That person selects a folder but the message does not appear in there. What I have found out was that if I right-click on the message and move it that way the message will move successfully. Or if the message is open and I do use the Move To Folder shortcut that if I select Other Folder and choose a folder they will move that way. Which leads me to believe that the folders in the recent folders list point somewhere else. So my question is, how can I find out where those folders point to?

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  • What does this error mean (Can't create TCP/IP socket (24))?

    - by user105196
    I have web server with OS RHEL 6.2 and Mysql 5.5.23 on another server and the web server can read from Mysql server without problem, but some time I got this error: [Sun Sep 23 06:13:07 2012] [error] [client XXXXX] DBI connect('XXXX:192.168.1.2:3306','XXX',...) failed: Can't create TCP/IP socket (24) at /var/www/html/file.pm line 199. my question : What does this error mean (Can't create TCP/IP socket (24))? is it OS error or Mysql error ? perl -v This is perl, v5.10.1 (*) built for x86_64-linux-thread-multi mysql -V mysql Ver 14.14 Distrib 5.5.23, for Linux (x86_64) using readline 5.1 su - mysql -s /bin/bash -c 'ulimit -a' core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 127220 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited

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  • Conficker keeps coming back

    - by PHLiGHT
    I hadn't run into anyone who actually got this virus until recently when dealing with a new client that didn't believe in patching their systems and consquently have been hit with this pest. I was under the impression that if you have KB958644 installed and ran the latest malicious software removal tool that conficker would be squashed. I have several systems that are fully patched, MSRT has removed the virus yet the bugger keeps coming back. This has even happened to a file server and a Domain Controller. What am I missing here? They are running AVG which I used to recommend but I have been doubting it's effectiveness over the past year or so.

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  • Windows Server 2008 Enterprise. Incorrect password on screensaver

    - by LarsErikP
    First some software details: Thin client: Wyse C10LE Citrix - Windows Terminal Services - Windows Server 2008 Enterprise desktop I have a user with a very strange problem. When he locks his screen with Win+L, Windows claims he's entering wrong password when he tries to log back in. The only solution is to hard reboot the WYSE, and log back in. This reboot doesn't kill his Windows session. I've checked for errors in keyboard settings (wrong layout etc), nothing found. I suspect errors in his profile/errors in AD. No other users in the domain has this problem. EDIT: Sorry, it's NOT Win R2. Plain Windows Sever 2008

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