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• How to alter mail-from postfix?

  - by Simon

  Hi all, do anyone know how to alter the mail-from of a postfix mail server? Example, I have a postfix mail server which sends mail for the domain example.org. When a linux user, whose account is user.example.org (mapped in postfix/virtual to [email protected]), try to send an email, its mail from is [email protected]. HELO hostname: server.hostname.org Source IP: one ip here mail-from: [email protected] Problems: user.example.org instead of just user. server.hostname.org instead of just example.org. Desired mail-from: [email protected]. This is causing me problems with SPF records for example (example.org differs from server.hostname.org)... any idea of what can be the problem? Thanks in advance, Simon.

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• setting visual bell to flash in iTerm

  - by blackwing

  Hi, I am using iTerm on OSX (leopard) to ssh to a linux machine. I run screen on the dev machine to save my work between sessions. I am not a big fan of audio bell and I don't like screen's default 'Wuff Wuff' bell (or any other little message shown at bottom of the page). What I like though is to have flash (foreground and blackground colors swapped for a fraction of a second) as my visual bell. I used to use PuTTY and it is as simple as ticking a checkbox but I can't find such an option in iTerm. My question is how can I set my visual bell to flash? The ideal answer would work with iTerm on local computer, iTerm sshed to a linux server, and iTerm sshed to a linux server and ran screen.

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• whats the point of @localhost entries for a mail server

  - by radman

  Hi, After recently setting up a mail server I am now adding the users that I need. As part of the tutorial I followed I created root@localhost as an account and also a bunch of aliases (postmaster@localhost, webmaster@localhost etc). What is the point of having al these localhost addresses? it seems that no one can ever mail them directly... Also I am curious as to what targets I should include on my domain (like postmaster, root, webmaster etc) and what ramifications there might be for doing so?

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• Use all 5.1 speakers with a 2.1 audio source

  - by thegreyspot

  Hi! I just bought a 5.1 surround sound speaker set for my computer in my bedroom. The rear speakers are next to me in bed while the front speakers are at the other end of the bed at my feet. While I enjoy the surround sound during movies that support 5.1 sound, I would like to have my rear speakers working when listening to podcasts, or other 2.1 channel sound. How can I do this? When I enable "Speaker Fill" in the Realtek Hd Audio manager the sound only comes out of the front and center speakers with a few background noises that come out the rear ones. But since my ears are closer to the rear speakers, I'd rather have the sound come out of them. Let me know of any ideas! Hmm seems like the only option is to set the rear speakers to "Front Speakers" and change it to stereo in the Realtek HD audio. But still that take alot of steps and it doesnt not use the center speaker Thanks

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• How to disable Microsoft eHome MCIR Keyboard and company?

  - by AndrejaKo

  Hi! I'm and unlucky owner of and Acer 7720G laptop which, like many in its category, has receiver for a proprietary infra red remote control device (which I did not receive with my laptop!) . Now my problem is that the receiver is detected as Microsoft eHome MCIR Keyboard, Microsoft eHome MCIR 109 Keyboard and Microsoft eHome Remote Control Keyboard keys. My problem is that this driver has incompatibilities with some programs I use like for example DosBox. When these devices are installed, they cause DosBox to incorrectly detect some keyboard buttons. The workaround is to remove or disable the 3 hardware devices. Unfortunately, I the disable option is grayed out and when I delete them, they are reinstalled on next restart. Is there any way to hack windows in order to prevent their installation? I was thinking about locating the drivers these devices use, but they are buried somewhere in windows installation and I don't have enough experience to find them, so I'm asking you for help.

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• Server Room Protocols/Server Room Management

  - by Matthew E

  Hi, I'm new to this site but have found the articles and feedback very useful. We have a Server Room which our Organisation owns and controls, yet there are several thirs party companies that have open access to this room. As such, we have been asked to put together a protocol paper that stipulates the standards that we expect to be adhered to when working in this room. Other than the monitoring of UPS loads, Air Cooling functionality, alarm systems etc, does any one have any guidance on the kind of issues that need to be documented to make this protocol all encompassing? I'm thinking along the lines of not leaving cardboard or other combustibles in the room, not having food and drink in the room, not altering the fabric of the building by drilling through walls etc? Many thanks in advance for any guidance provided.

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• Explanation of WCF application life cycle in IIS 6 hosting environment.

  - by David Christiansen

  Hi all and thanks for reading, I have a delay issue where my application takes a long time to start up when first called after an determinate period since the last call. The web application is a WCF service and we are talking about a delay of ~18seconds before the actual processing starts. Now, I believe I know how to reduce this delay so that is not my question (it's more a stackoverflow deal anyway) My question is, Can anyone explain to me why is it that despite me disabling worker process shutdown, and worker process recycling the application still 'winds down' after a indeterminate period of time of inactivity? To understand this I need to know more about the innerworkings of WCF services hosted in IIS. I fully expect there to be a straight forward answer to this. Thank you v. much for any help you may offer, DC

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• MS SQL dts to ssis migration error

  - by Manjot

  Hi, I have migrated some DTS packages to SSIS 2005 using "Migration" wizard. When I tried to run it, it fails saying you need a higher version of SSIS even though the destination SSIS server is on 9.0.4211 level. then I digged in the package using business intelligence studio and saw that one of the package subtasks is "Transform data task" (the dts version) and the package fails to run that. The storage location for this dts task is set to "Embedded in Task". I didn't touch it. why didn't it convert this task to an SSIS data flow task? any help please? Thansk in advance

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• Windows 7 : Any way to disable "show caracter" in WIFI network properties?!

  - by Fox

  Hi everyone, Here's my issue. I'm working in a school as IT Tech and I'm currently planning to roll out Windows 7 on students laptop. The issue is : When you go to the properties of a WIFI network, you have the fields to input the WIFI key, WPA2 key here in my case, and you also have a checkbox that allow you to "unmask" the caracters of the wifi key. This is actually the problem. Anyone who can access the WIFI network properties, will be able to see the WIFI key, which is really an issue in a school envrironnement where student are all eager to get the key for their precious IPod Touch, what I don't want to happen for obvious reasons... So, is there a way to disable that checkbox or else, make the field cleared out when the checkbox is checked, just like it was on Windows XP or Vista? Thanks all for your answer.

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• Permission settings for apache2 web content directories with several users?

  - by John

  Hi there. I've got a Debian VPS set up with a LAMP-stack. My apache2 instance runs on the user account 'www-data'. In addition to the root account and the service accounts I have several user accounts belonging to friends, family and myself that includes FTP-access. This is to allow the users to drop files to the root of their domain which is located in their home folder. I am having issues with setting the correct permissions so that Apache is able to serve the content ("403 Forbidden"). I could just do a 'chmod -R 755 *' on the entire www-directory for each domain, but from what I gather that's not a good idea. Here's an example of the structure: apache2 is run by 'www-data' User 'john' has this home folder structure /home/john/domains/somedomain.com/www /home/john/domains/sub.somedomain.com/www How can I keep things safe while still allowing users to upload content via FTP, and allow for file-uploads in lets say Wordpress?

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• Does vmWare ESXi 4.0 U1 support the Promise SuperTrak EX8650 SATA card?

  - by RTNN

  Hi, can anyone tell me if vmWare ESXi 4.0 U1 has support for the Promise SuperTrak EX8650 SATA card? In the hardware support guide I find that VmWare should have support for the Promise SuperTrak EX8650 SATA card but only in version ESX 3.5. Is this card not supported for ESXi 4.0 U1 or what? From the hardware guide! Partner Name Model Manufacturer Device Type Supported Releases Promise SuperTrak EX8650 Promise Technology Inc SAS-RAID ESX 3.5 U5*1 1 , ESX 3.5 U4*1 1 Promise SuperTrak EX8760T Promise Technology Inc SAS ESX / ESXi 4.0 U1*2 2 , ESX / ESXi 4.0*2 2

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• QR Codes for Files on Google Code

  - by Synetech inc.

  Hi, When you download files from Google Code now (example), in addition to the text version of the SHA1 hash, it includes a QR code of it. The device that the file was downloaded to is the one that has to hash the file. But, if it can download the file (ie, has access to the webpage), it also has access to the text version of the hash, so the QR code seems completely useless—and more work to decode when the raw text is available. How would reading the hash into a mobile phone allow you to verify the file you download to the computer? Or if you download the file to the phone, how would you use the phone to take a picture of the QR code displayed on the webpage on its own screen? Does anyone know what the point to the QR code is or how you would use it to verify the downloaded file (I don’t mean QR codes in general, but specifically in this context).

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• where to look for computer technician jobs

  - by Kareem

  Hi I am currently studying for the A+ certification, I plan to have it by the end of this month and I plan to go for farther education. I’ve built two high end computers by myself for a friend and family member. Install OS and everything. I’m looking in to finding either a computer assembly or computer technician job . Where is the best place to look for one? I’ve looked in to best buy but I find their geek squad to be a little bit shady. Where is a good place to look for a full time entry level computer technician job just starting out in Tampa, FL?

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• selective backup script in bash

  - by Sake

  Hi, I've been using this simple command (that's all I can do :) to backup the whole tree from my user data in NAS server for a year. cp -r /STORAGE /BACKUP-STORAGE/YYYY-MM-DD Unfortunately, after a year of service. My user start filling the spaces with lot of photo and cliparts (jpg, gif, bmp) And that start to make my backup process get much slower. The space is also a big issue. Now I no longer have enough space for a week-long daily backup set. I think I want to change from backup everything to backup only non-image data. How can I exclude jpg, gif, and bmp from the backup ? It's quite easy with DOS XCOPY command, but I really have no idea how to do that in bash. Thanks

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• Outlook 2007 VBA/Macro

  - by user27538

  Hi, I am a very basic user new to macros and vba. My problem is that I recive online orders to which i need to click an auto generated unique order hyperlink to confirm receipt of the order within a specified time period. This is a mundane task having to be on 'standby' and was wondering if there was a way to have this link automatically clicked when the email arrives. Just to reiterate the link has a unique reference and is different on each email. Please bare in mind that I am a very basic user and would probably require step by step instructions. Many thanks in advance

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• IE8 Windows 7 (64bit) security certificate problem

  - by Steve

  Hi, We have just received some new computers for use in the office (Dell Vostro). They seem to work fine in the main. When we use IE8 to go to some web pages such as yahoo mail it tells us: “There is a problem with this websites security certificate” If we have a look at the details it says: “This certificate cannot be verified up to a trusted certification authority” This however works correctly in Firefox. I don't understand why I should get such an error message, should this not just work? I don't think its anything to do with the certificate itself as this is happening on www.yahoo.co.uk and other commercial (amazon I think?) sites. I think there is something off with the PCs setup. The PC has Windows 7 (64 bit) and Norton Internet Security installed. Any ideas as to why this is happening? Thanks

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• Clipboard: Copy image, get path back when pasting in file input.

  - by disown

  Hi All. First question here on superuser. I sometimes get ad-hoc bug reports from customers, which I need to transfer to our online bug tracker. Works fine for text, but pictures are tedious. I'm looking for a solution to copy-paste images from documents (like excel sheets) in a way that if you paste an image to a file input (or text input) on a html page, the file will automatically be written to disk (tmp dir), and the path written to the file input field. This question is related to Directly paste clipboard image into gmail message, but I would like to ask if there is a solution using a local program only. I'm interested in solutions for all OS's.

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• Sync Windows Live Mail between two computers

  - by Jesper

  Hi, I have a laptop where I have been using Windows Live Mail as my email application for the last year. Yesterday I got a dell desktop as well and I am desperatly trying to set up so my desktop and laptop sync the email between each other. Im using Super Flexible Synchronizer to sync the email storage folder to a NAS on my network, so when setting up the desktop naturally I set it up to download all from the NAS. But each time I open Windows Live Mail on the new machine, some emails suddenly come in duplicates, one is read, the other is not. I have ran through the registry on the new machine and updated an ID i found, in 3 places, one being: C:\Users\\AppData\Local\Microsoft\Windows Live Contacts{blah blah blah}\DBStore\contacts.edb Still doesnt seem to be enough. Does anyone have any tips or ideas how to sync Windows Live Mail between two computers without duplicates and weird behaviour etc. grateful for your help, jesper

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• wget works with company proxy but apt-get and dpkg doesn't

  - by damian

  Hi, I am trying to install some software in a fresh install of Linux dnoseda 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:10:02 UTC 2010 i686 GNU/Linux. I already set the variables http_proxy, https_proxy and ftp_proxy and wget works perfectly. But when I try with apt-get it blocks trying to conect directly to the site, without the proxy. Or the other behavior that I got is a lots of 407 authentication errors. But the wget of those packages works perfectly. It's something missing? Can you help me? thanks in advance.

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• Is it possible to have an external server with in a companies firewall?

  - by Jonathan

  Hi guys, I am sure this is server admin 101,but I am unsure of the answer and would love some help. I am a software developer I have built an application for a client and am currently hosting it successfully on SliceHost. We are now coming out of Beta and the client wants to have the application within their Firewall, but they do not want to deal with headache of hosting and maintaining the server. Is there a way I can recommend that we put our server at SliceHost within their Firewall? Is that an easy thing to do? If that is not possible, what should I recommend to my client? Thanks! Jonathan

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• SQL Server Express 2005 cannot connect

  - by jp

  hi all, I have a SQL Server Express 2005 install on a godaddy virtual terminal which currently is only connected to(locally with mgt studio) every few days or so. Every time i try to connect I get a cannot connect to SQL Server error and after a restart it I can connect just fine locally. I was wondering if there is a timeout setting or something that I am missing that I need to change so that if it is not connected to for a while it does not required a restart? any ideas? thanks!

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• Configuring a Jetty web application on a different port

  - by sHz

  Hi folks, I'm brand new to Jetty. I'd like to ask if its possible to have Jetty listening on port 8080, however where specified, serve a specific web application under say /var/jetty/webapps/<appname> (default on CentOS) served on say port 10000 instead of http://localhost:8080/<appname> i.e. http://localhost:10000/ = http://localhost:8080/<appname&gt; ? If so, what configuration changes would be required to make this work without an additional proxy server? I've googled away, but haven't found a solution (perhaps I've missed something obvious?).

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• HTTPS is not working in transparent proxy with Squid

  - by Supratik

  Hi I am using Squid proxy 3.1, all systems in the LAN connects to the internet through proxy. Direct connection is blocked using the iptables from the gateway server. There are some devices which does not have options for auto proxy or manual proxy and can only connect to the internet directly. So I enabled transparent proxy in Squid and redirected packets for port 80 and 443 to Squid proxy using iptables. Now the problem is it is working fine for HTTP port but HTTPS is not working. It is throwing "ssl_error_rx_record_too_long" error. If it is not possible through transparent proxy can you please suggest me another solution. Warm Regards Supratik

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• nginx + varnish + apache differente IPs in VirtualHost Apache

  - by zeusgod

  Hi, My idea is put NGINX as proxy to redirect to Varnish (cache static content) and then proxy to apache with a lot of VirtualHost in different IPs. My problems is that I would know how can configure Varnish to send access to correct IP, I am going explain: NGINX: Listen in: 10.10.10.10, 20.20.20.20 and 30.30.30.30 on ports: 80 and 443 Proxy redirect to Varnish 10.10.10.10:8080, 20.20.20.20:8080 and 30.30.30.30:8080 Varnish: Port: 8080 - THIS IS THE PROBLEM Proxy content not static to Apache on port 8000 - THIS IS THE OTHER PROBLEM Apache2: Listen in: 10.10.10.10:8000, 20.20.20.20:8000 and 30.30.30.30:8000 Response correct VirtualHost This is the idea. When I try with one IP only, all work correctly, because Varnish is only listen in one IP and port and send to backend in one IP and port too. Could you help me to configure Varnish or there is a best way to configure similar scenario please?

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• sql server 2008 snapshot agent problem

  - by Dmitri

  Hi! I've just installed mssql 2008 sp1 x64 on windows 7 RTM, and have the problem with creating snapshots, whenever I try to launch the snapshot agent (i.e. to setup transactional replication publication), it throws the error that 'the file is missing'. I have looked into c:\program files\microsoft sql server\100\com and there are no executable files at all, like snapshot.exe! I tried a crazy move to copy all the files from my mssql 2005 com folder, without replacing ofcourse, and now it doesn't give an error, but says 'starting' all the time, but nothing happens. (Now I have removed those files again) I have all of the relevant features installed. So please help me figure out what to do now! Thanks! Dmitri.

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