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• Exchange 2003 and Outlook rule: Send auto reply message not working

  - by Mestika

  I have created a distributed group which have to send a auto reply when receiving a mail. I know that it is impossible to send a auto reply within a distributed group, but following a guide I have created a mail account called “noreply”. In outlook I have created a rule in the “noreply” account where I chose following conditions: Send to a person or distributed list (where I selected my distributed group) Then to specify what to do with that message I selected Have server reply using a specific message I’ve created my message and saved it. But when I try to write an e-mail to the distributed group it doesn’t send back the reply message. Does anyone knows what I’m doing wrong? Sincerely Mestika

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• Unexpected network traffic?

  - by robwalker

  My internet connection is via a fixed wireless connection using a 900MHz Motorola Canopy module. The router reports a fairly consistent 32-64Kbps of incoming traffic on the WAN port. When I attached a PC directly to the port and run Wireshark, I get a dump showing a lot of chatter from other machines that I presume are connected to the same tower. This didn't include end-to-end traffic, but was there were a lot of ARP requests, SSDP traffic, ICMP and other network discovery type stuff. Is this 'normal' or does it suggest a misconfiguration somewhere? As far as I can tell there is no need for my modem to be receiving any of this traffic (other than wanting to know what the names of my neighbours machines and printers are!) Since the internet connection is slow at the best of time, having this amount of background noise seems very wasteful.

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• media is write protected when using diskshadow.exe, start-bitstransfer powershell cmdlet

  - by Aaron - Solution Evangelist

  i am trying to use the powershell start-bitstransfer cmdlets to transfer a file i have exposed using a vss snapshot (via diskshadow), but unfortunately i am receiving the following error: Start-BitsTransfer : The media is write protected. At line:1 char:49 + Import-CSV c:\hda1\bits.txt | start-bitstransfer <<<< -transfertype upload -Authentication "Basic" -Credential $cred + CategoryInfo : InvalidOperation: (:) [Start-BitsTransfer], Exception + FullyQualifiedErrorId : StartBitsTransferCOMException,Microsoft.BackgroundIntelligentTransfer.Management.NewBits TransferCommand we really want to utilize the bits endpoint we are attempting to transfer the files to. is there any other way we can go about this (aside from copying the files elsewhere first, unless we can copy one slice at a time and transfer that)?

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• UDP multicast streaming of media content over WIFI

  - by sajad

  I am using vlc to stream media content over wireless network in scenario like this (from content streamer to stream receiver client): The bandwidth of wireless network is 54 Mb/s and UDP stream's required bandwidth is only 4 Mb/s; however there is trouble in receiving media stream and quality of playing specifically in multicast mode; means I can play the stream but it has jitter and does not play smoothly. In uni-cast I can stream up to 5 media streams correctly, but in multicast mode there is problem with streaming just one media! However when I stream from client some multicast streams; the wifi access-point can receive data correctly and I can see the video in "udp streamer" side correctly even when number of multicast streams increases to 9; But as you see I want to stream from streaming server and receive media in client size. Is this a typical problem of streaming real-time contents over wireless networks? Is it necessary to change configurations of my WIFI switch or it is just a software trouble? thank you

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• The canonical "blocking BitTorrent" question

  - by Aphex5

  How can one block, or severely slow down, BitTorrent and similar peer-to-peer (P2P) services on one's small home/office network? In searching Server Fault I wasn't able to find a question that served as a rallying point for the best technical ideas on this. The existing questions are all about specific situations, and the dominant answers are social/legal in nature. Those are valid approaches, but a purely technical discussion would be useful to a lot of people, I suspect. Let's assume that you don't have access to the machines on the network. With encryption use increasing in P2P traffic, it seems like stateful packet inspection is becoming a less workable solution. One idea that seems to make sense to me is simply throttling down heavy users by IP, regardless of what they're sending or receiving -- but it doesn't seem many routers support that functionality at the moment. What's your preferred method to throttle P2P/BitTorrent traffic? My apologies if this is a dupe.

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• 27 days after domain transfer name servers not propogated

  - by Thom Seddon

  We recently bought the domain: embarrassingnightclubphotos.com 7 days after accepting the transfer the domain finally transferred to our registrar and we immediately changed the name servers from ns*.netregistry.net to amy.ns.cloudflare.com and cody.ns.cloudflare.com 20 days after changing the name servers, the majority of tests show that both old and new nameservers are still being reported: http://intodns.com/embarrassingnightclubphotos.com http://www.whatsmydns.net/#NS/embarrassingnightclubphotos.com We are now ready to launch the new site but this issue is plagueing us as a high proportion of the traffic is still receiving the old nameserves and so hitting the old server. You can tell if you have hit the old or new server as the old server has the value "A" for the meta tag "Location" and the new server has "U". (The old server just has an iframe too!) I have never had this problem before - who is causing this and how should we go about reaching a resolution? Thanks

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• How to perform fresh linux install while preserving software raid and user accounts

  - by slayton

  I have a system with two software raid arrays. The OS is Ubuntu 9.04 and is no longer receiving updates. I'd like to update the system to 12.04 rather than trying to do the automatic update from 9.04-> 9.10-> ... -> 12.04. My main drive has 2 partitions that are mounted at / and /home. Is it possible to do a fresh install of linux to the partition where / is mounted while preserving user accounts and preferences (such as passwords, home dir locations, etc...)? Additionally what do I need to do to keep my software raid array intact following the OS re-install?

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• Coldfusion server VERY slow page loads

  - by Kevin

  I inherited a windows server 2003 coldfusion 7 server a few weeks ago. Today a network cable was unplugged by accident from the server. On plugging it back in, pages were NOT loading at all. Rather, we were receiving a generic coldfusion error page. After restarting IIS several times and coldfusion even more than that, we finally got pages to start loading. However, the loading is extremely slow (30+ seconds) on pages that used to load instantly. Loading through the local network (IE localhost/cfide/administrator) does nothing to help the load speed. I am not familiar with IIS or Coldfusion (We're in the process of migrating this to Linux/PHP), so this is all new territory to me. I'm hoping someone may have experienced this issue in the past and can help me solve it. I'm happy to provide any additional information that might be necessary....I'm just not sure what information you might need in order to help. Thanks for your time.

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• Configure spamassassin to mark very similar messages as spam

  - by Caleb Gray

  Users on my server have been receiving spam, consistently, for some time now. I have most of spamassassin's plugins enabled, and I have made sure to enable verbose logging, where I can see that all of the plugins are working. Why is it, then, that my users are able to receive the same exact junk mail several times in a day without the message being flagged in some way? Here are the relevant headers of an email that I personally have received several copies of: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on sub.domain.tld X-Spam-Level: *** X-Spam-Status: No, score=3.0 required=4.0 tests=BAYES_50,FSL_HELO_NON_FQDN_1, HELO_NO_DOMAIN,HTML_MESSAGE,RCVD_IN_BRBL_LASTEXT,RDNS_NONE autolearn=no version=3.3.1 Have I accidentally missed the plugin that can see that I, and others, have received the same message multiple times in a short period of time?

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• Audio and video streaming using Network Simulator in Linux

  - by Parth_90

  I am working on a project which is to show the simulation of streaming of audio and video data in wireless networks. I want to show the simulation that involves a base station, with few wireless stations. The base station should start sending data once it computes a certain value . On receiving the data, each wireless must begin communicating with the base station. I have gone through basic NS-2 tutorials from over here but I am not getting how to go about integrating it with my project. Can anyone tell me how to do it using NS2 or any other network simulator?

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• Undeliverable messages to newly migrated Exchange user

  - by johnnyb10

  We are in the process of migrating from our old domain to a new one, part of which involves migrating mailboxes from Exchange 2003 to Exchange 2007. A bunch of users have been migrated already without problems. However, one of the users is having trouble receiving emails from others. When someone sends to him, they get an Undeliverable NDR that says "A configuration error in the e-mail system caused the message to bounce between two servers or to be forwarded between two recipients." The message shows the user's distinguished name as /OU=OurDomain/CN=Recipients/CN=USER57137172. The user's account name should just be "USER", so I don't know where the extra numbers ("57137172") are coming from. Thanks in advance.

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• Exim force TLS for specific destination domain

  - by helpmhost

  Hi, I need to configure Exim to require TLS when sending emails to a specific domain. I know that I can use hosts_require_tls = host in the smtp transport. But it sounds like that requires that I set the host of the receiving mail server. I would instead like to specify the domain. Also, if I use this, will all other hosts/domains work without TLS? Just want to confirm before I implement. Thanks.

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• How to add exception for backup MX to tumgreyspf?

  - by Waleed Hamra

  I have an Ubuntu raring server running postfix/dovecot as an email server, with tumgreyspf doing greylisting and SPF checks. My problem is that I also have a backup MX server, that is supposed to store my emails temporarily, should my main server ever fails. It usually rejects receiving emails if it finds the main server online and functional. The problem is when it does need to do its job, tumgreyspf rejects all emails from the backup MX with an error like this: Jun 27 16:18:13 hamra postfix/smtpd[28732]: NOQUEUE: reject: RCPT from mxbackup.mydomain.com[x.x.x.x]: 550 5.7.1 <[email protected]>: Recipient address rejected: QUEUE_ID="" SPF Reports: 'SPF fail - not authorized'; from=<[email protected]> to=<[email protected]> proto=SMTP helo=<mxbackup.mydomain.com> any ideas?

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• Detect and delete spam email with Mac/Mail software

  - by prosseek

  I keep receiving the following email. It changes the sender, and contents a little bit all the time, so my spam filter doesn't filter it out. Is there any way to find this pattern to filter it out? My=Friend-Is=Looking-ForYou~On=TheWeb?~She~Likes~Your~Photos .,. http://2su.de/S0w --------------- the ought, inhumanity go sulphuret. No therefore. At do partner, shape! That easy-chair sympathetic.

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• does it still have any sense to directly drop mails that trigger RBLs?

  - by Luke404

  Once upon a time, using RBLs to drop mails was actually a good idea. These days seems it is no more possible for a reason or the other, so every one switched / is_switching to just use RBLs as another test in score based antispam solutions (read: SpamAssassin & friends). This gives good results, but neglects one of the benefits of RBLs, namely the ability to reject (supposed) spam before even receiving the message body. Is still there any RBL that makes sense to use that way, to hardly reject anything that fires a match in that list? If there are people doing it that way, do you ever get false positives due to the list?

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• Determining Namespaces Not in the ACPI Spec

  - by Eddie B

  I am trying to determine how it may be possible to find documentation for namespaces that are not documented in the ACPI spec. I have an Asus uEFI BIOS v(3202) and I'm receiving kernel messages stating AE Namespace lookup failures for DSSP. This is referring to a namespace that is not in the ACPI spec. I'm presuming that this is vendor specific and refers to a Digital Sensor Signal Processor. That is only a presumption. In an effort to correct ACPI errors I have dumped my DSDT using acpidump and then decompiled it using iASL. Yet to fix the error I need to know the spec on the namespace. How can I get access to the BIOS documentation that isn't part of the ACPI spec?

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• Is there a common X-Header for RFC 2821 "MAIL FROM"? Should it be DKIM signed?

  - by makerofthings7

  w.r.t. the difference between RFC2821 MAIL From and RFC2822 FROM I'm considering having my MTA add a header specifying what was sent in the MAIL FROM portion of the envelope. The RFC2821 header is used for receiving email bouncebacks, and is the header that is checked in SPF and some SenderID configurations. The goal is to make it easier for diagnostics and debugging by having this low level information in the email header. What is an acceptable name for this SMTP header? Should this header be signed by DKIM? Is there any reason why it shouldn't be signed?

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• Undeliverable messages to newly migrated Exchange user

  - by johnnyb10

  We are in the process of migrating from our old domain to a new one, part of which involves migrating mailboxes from Exchange 2003 to Exchange 2007. A bunch of users have been migrated already without problems. However, one of the users is having trouble receiving emails from others. When someone sends to him, they get an Undeliverable NDR that says "A configuration error in the e-mail system caused the message to bounce between two servers or to be forwarded between two recipients." The message shows the user's distinguished name as /OU=OurDomain/CN=Recipients/CN=USER57137172. The user's account name should just be "USER", so I don't know where the extra numbers ("57137172") are coming from. Thanks in advance.

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• Finding Missing UDP Frames Using Wireshark + Custom Dissector (for CQS)

  - by John Dibling

  How do you use Wireshark to identify missing UDP frames? I have written a custom dissector for the CQS feed (reference page). One of our servers gaps when receiving this feed. According to Wireshark, some UDP frames are never received. I know that the frames were sent because all of our other servers are gap-free. A CQS frame consists of multiple messages, each having its own sequence number. My custom dissector provides the following data to Wireshark: cqs.frame_gaps - the number of gaps within a UDP frame (always zero) cqs.frame_first_seq - the first sequence number in a UDP frame cqs.frame_expected_seq - the first sequence number expected in the next UDP frame cqs.frame_msg_count - the number of messages in this UDP frame And I am displaying each of these values in custom columns, as shown in this screenshot: A typical CQS log will consist of millions of rows, so I can't just eyeball it. Is there any way I can get Wireshark to tell me which frames are missing?

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• Error headers: ap_headers_output_filter() after putting cache header in htaccess file

  - by Brad

  Receiving error: [debug] mod_headers.c(663): headers: ap_headers_output_filter() after I included this within the htaccess file: # 6 DAYS <FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)$"> Header set Cache-Control "max-age=518400, public" </FilesMatch> # 2 DAYS <FilesMatch "\.(xml|txt)$"> Header set Cache-Control "max-age=172800, public, must-revalidate" </FilesMatch> # 2 HOURS <FilesMatch "\.(html|htm)$"> Header set Cache-Control "max-age=7200, must-revalidate" </FilesMatch> Any help is appreciated as to what I could do to fix this?

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• Filtering semi-solicited spam

  - by Ketil

  While traditional UCE (get rich quick, enlarge your body parts, Nigerian barristers) are handled adequately, I'm still receiving a lot of not quite unsolicited spam. This is typically from commercial services forwarding "invites" from my "friends" and then "reminding" me of their services. Typical offenders are Facebook, Linkedin, dropbox, bebox, etc etc. (Of course, none of these services provide any way of opting out, except possibly by registering, which they will then take as an invitation to stuff your mailbox with even more crap) What is a good way to deal with these? I can of course junk them using procmail, but is it a better idea to e.g. bounce them, or at least send a reply informing the sender (and "friend") that I am not interested in their service nor their spam. Any solutions to this?

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• How to put a rgb image on gnuplot 3d plot?

  - by Stefano Borini

  I want to plot an rgb image with gnuplot, and it must be hovering inside a 3d plot box, so that it can act as a "floor" for my data. How can I do it ? THe gnuplot examples use a heatmap to map the rgb values, but this is not what I want. Apart from receiving an error GNUPLOT (plot_image): Color boxes cannot handle RGB components. It is not what I want in any case. I need the full rgb data in the box, not mapped through a heatmap.

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• Dovecot/Postfix-mysql e-mail Aliases are not correctly forwarded

  - by jo_fryli

  I recently set up Dovecot/postfix-mysql on my Debian Squeeze Server and I have a bit of a problem. When ever I send a email to an alias ([email protected] forwarded to [email protected] for example) Postfix (or Dovecot, I'm not quite sure) puts this email into a Mailbox rather than forwarding it to the real Mail-Adress. I have tested all the MySQL queries and they all behave the way I intend them to do. foobar dovecot: deliver([email protected]): msgid=<000001385b464c9a-e40af11e-3bf4-49f6-903d-1d2369f6bfb6-000000@barfoo: saved mail to INBOX master.cf main.cf Keep in mind that normal E-Mail sending and receiving works just fine! I have set up my MySQL Tables with Postfixadmin. Thanks for your help!

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• Imap server woes with Android Gingerbread email and Thunderbird

  - by Mojo

  I run my own mail server and use UW's imapd/popd daemons to provide service. This week I just upgraded my OG Droid to a new Droid 3, running Android 2.3.4 (Gingerbread). The email client is much improved over the previous one. But now I have a bad interaction when I try to access email using imap from Thunderbird on a laptop or desktop. Frequently Thunderbird will stop receiving any email at all, and it will appear only on the Droid. Sometimes a Thunderbird restart will make the mail appear, but none of my "deletes" will be recorded, so when I start Thunderbird again, all my old email reappears. If I kill all of the open imap daemons and restart xinetd, I can force it to behave for maybe a session. I've tried turning off IDLE service (push email) on both sides, to no apparent avail. I've also tried installing DroidMail with the same result.

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• trying to understand how Linux /etc/hosts file works with local and external IP addresses

  - by gkdsp

  Let's say I have a Linux server with an external IP of 123.456.789.012 and a local IP of 192.168.0.1. If it's /etc/hosts file looks like, for example, 123.456.789.012 host2.mydomain.com 192.168.0.1 host2.mydomain.com When an application on the server generates traffic to send using host2.mydomain.com, how does the server know whether to use the local or external IP address (since the same host name shows two IP addresses)? Or, does it need something additional than what I've presented here to decide this? Or, does it just sent it out as host2.mydomain.com and let the receiving end deal with it (if so, how to make sure traffic intended for local network indeed goes to local network)?

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