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• Why does iChat Server keep connecting to proxy.eu.jabber.org?

  - by Tom Hamming

  I have OS X Server 10.6.5 running on a new Mac Mini (server model), serving several functions among which is iChat Server (iChat and Pidgin on Windows as clients). In the iChat log in Server Admin, I kept seeing entries about connecting to proxy.eu.jabber.org. It's for our office network and I wasn't excited about external access to it, so I disabled server-to-server XMPP federation and now the connections just time out. But why is it doing that in the first place? Sample log entry: (datetime) (servername)jabberd/resolver[portnum]: [xmpp-server._tcp.proxy.eu.jabber.org resolved to 208.68.163.220:5269 (300 seconds to live) then: sending dialback auth request for route '(full server hostname)/proxy.eu.jabber.org' A couple minutes later, it comes back with: dialback for outgoing route '(full server hostname)/proxy.eu.jabber.org' timed out

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• Decreasing lagging on router, while gaming

  - by user2699451

  I had absolutely no idea where to post this question and get a professional answer for it but here goes... Okay, so I guess everyone whos is reading this had played online, and so I was playing LoL again tonight and my brother decided that now was a great time to go on youtube and start watching a movie, so my ping (connecting from South Africa to EU west server) is around 190-220 average, however it started spiking to 2000 and average was 600-800, so it arised the question, how ther hell can I "kick" him off for the time being I tried reasoning it out with him but its like playing chess with a pigeon, he's studying to be an engineer, and I just cant win an argument with him, so i need to step it up a level... I have in the past used the aireplay method by sending deauth packets but it only helped so much, is there another way of either kicking a peer of the local wifi or decreasing the lag spikes while in session or even splitting the bandwidth equally in 2 or 3,etc What do I do p.s. sorry if off topic, if it is not appropriate, just say which website will be able to help or assist me...

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• Is there a way to identify the device data is being received from? (python)

  - by Ed Prince

  Summary I have an MT4000 device connected to my computer using the serial port ttyS0. This is broadcasting data which is being received and read by a udp listener written in Python. I am also sending data manually through the terminal using a bash script I wrote. The Goal Is it possible to identify the device being used? The aim is for a web-page to allow the user to select which device they wish to see the data being sent. I would rather achieve this by directly identifying the device rather than saying anything from ttyS0, in case a different device is plugged in on that port. The Answer Is this possible, and if so, how? Everything I have found so far, is on identifying through a specific port.

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• Postfix SMTP sends to localhost, ignores MX records set to Google Apps

  - by Kerrick

  I have the MX records for zaltin.com set to the Google Apps domains (aspmx.l.google.com etc.). If an email is sent to [email protected] from most places, it goes to my Google Apps account. However, on the zaltin.com server (Ubuntu 10.04 if it matters), sending via SMTP (postfix), if I send to [email protected] (via the Pony ruby gem if it matters), it simply routes to kerrick@localhost (showing up via the mail command) instead of going to my Google Apps account (where it should show up in my GApps Gmail inbox). Can I make email sent via SMTP on my server, through my server, not go to my server but to Google Apps?

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• How to rsync a large file, with as little CPU and bandwidth expense as possible?

  - by Johan Allgoth

  I have a 500 GB file that I plan on backing up remotely. The file changes often. I'll be rsyncing it from a desktop to a server. Both can run rsync client or server. What is the proper command for this? The ones I've tried sofar has been taking forever or simply acted strange. Example and results: rsync -cv --partial --inplace --no-whole-file /desktop/file1 myserver.com::module/file1 Seems to work, but only if I do it twice (?!). Also, slow. Does the above command do the checksumming on both computers, or only on the sending one? Is it correct otherwise?

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• Nginx Cache-Control

  - by optixx

  Iam serving my static content with ngnix. location /static { alias /opt/static/blog/; access_log off; etags on; etag_hash on; etag_hash_method md5; expires 1d; add_header Pragma "public"; add_header Cache-Control "public, must-revalidate, proxy-revalidate"; } The resulting header looks like this: Cache-Control:public, must-revalidate, proxy-revalidate Cache-Control:max-age=86400 Connection:close Content-Encoding:gzip Content-Type:application/x-javascript; charset=utf-8 Date:Tue, 11 Sep 2012 08:39:05 GMT Etag:e2266fb151337fc1996218fafcf3bcee Expires:Wed, 12 Sep 2012 08:39:05 GMT Last-Modified:Tue, 11 Sep 2012 06:22:41 GMT Pragma:public Server:nginx/1.2.2 Transfer-Encoding:chunked Vary:Accept-Encoding Why is nginx sending 2 Cache-Control entries, could this be a problem for the clients?

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• recommended way to collect email notifications from crond in Arch Linux

  - by nponeccop

  Arch Linux doesn't have sendmail installed by default. So I get the following messages in my syslog: Sep 15 13:16:01 zorro crond[18497]: mailing cron output for user collectors sh cronjob.sh Sep 15 13:16:01 zorro crond[18497]: unable to exec /usr/sbin/sendmail: cron output for user collectors sh cronjob.sh to /dev/null What is the recommended way to fix this default behaviour so actual messages are sent? heirloom-mailx is installed and capable of sending email messages using SMTP. Is it possible for crond to use mailx to send notifications? Is there any drop-in replacement for sendmail that sends using mailx? Sendmail is not even in the repositories.

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• How does Exchange 2010 prevent auto-reply loop?

  - by Beaming Mel-Bin

  E.g., 2 users have auto-reply configured. User A sends a message to User B. User B's auto-reply gets sent to User A's mailbox. That, in turn, causes an auto-reply to be sent from User A and insanity ensues. How does Exchange 2010 prevent this scenario? Also, can Exchange 2010 prevent a user's mailbox sending more than one auto-reply to the same user in one day? Bonus: Assuming Exchange prevents this, how do I configure the settings?

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• how do I setup Apache's Content-Encoding Header?

  - by Nick

  When attempting to validate my site with the W3C validator, it returns the error, "Don't know how to decode Content-Encoding 'none'". Firebug confirms that my server is sending the header, "Content-Encoding: none". But I can't find any directive in apache2.conf or in my vhost that sets the Content-Encoding header. Where does the directive go, and what should it be set to? UPDATE: On further examination it seems something is wrong with mod_deflate (gzip). It's zipping my css files just fine, but is not zipping the html generated by my php scripts. I have: AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css And the pages are showing a mime type of: "text/html". But content encoding is "none" and they aren't zipping. Perhaps these issues are related?

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• Server 2003 RAS Server Utilising High WAN Traffic

  - by Joe Sergeant

  We have Routing and Remote Access configured on Server 2003 (also our primary domain controller), allowing users to connect in remotely to access files, email, etc. With one user, the RAS Server is constantly sending data to that user's remote computer. From 9am this morning it has transferred almost 800MB. The user isn't transferring any files remotely, certainly not enough to total 800MB anyway. None of the other remote users have had this issue. We have ensured that the user in question has "Use default gateway on remote network" disabled for both IPv4 and IPv6 and we are fairly confident that Offline Files isn't trying to synchronise with the server remotely, too. My question is two-fold. Firstly, has anyone had a similar experience? Secondly, what would be the best software to discover exactly what data is being sent to the remote user?

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• Plesk 9.2.1 reporting much more SMTP traffic than the logs indicate

  - by Eric3

  Plesk is reporting nearly 7GB of SMTP traffic so far this month on one domain, most of it outgoing. However, after running qmail's mail logs (which only go back to May 8) through Sawmill, only about 900MB of traffic on that domain is accounted for. What I know so far: Email sent via PHP's mail() function is sent through sendmail, which has been logging its output via syslog to the same logs that qmail uses, at /usr/local/psa/var/log/ Messages sent by logging in directly via Telnet are logged as well I verified that Plesk is reporting totals correctly by creating a new domain, sending some large emails through it, running Plesk's statistics calculation script, and comparing its reported totals to the actual size of the emails sent The problem domain did have three mail accounts with blank or insecure passwords, which I corrected Does anyone know how Plesk calculates SMTP traffic statistics? Are there some log files elsewhere that I'm missing? What kind of SMTP traffic would Plesk know about that isn't being logged?

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• sendmail on Ubuntu won't send from www-data user

  - by bumperbox

  I if call mail() function in PHP from webserver (running as www-data) i get an error sending email. If i call the same script from the cmdline logged in as root, then it works If i switch user to www-data and run from the cmdline i get this error message WARNING: RunAsUser for MSP ignored, check group ids (egid=33, want=107) can not chdir(/var/spool/mqueue-client/): Permission denied Program mode requires special privileges, e.g., root or TrustedUser. FAILEDWARNING: RunAsUser for MSP ignored, check group ids (egid=33, want=107) can not chdir(/var/spool/mqueue-client/): Permission denied Program mode requires special privileges, e.g., root or TrustedUser. FAILEDTest Complete$ WARNING: RunAsUser for MSP ignored, check group ids (egid=33, want=107) I am guessing i need to do something in sendmail configuration I have googled for some solutions but have ended up more confused. Can someone let me know what configuration I need to change to fix so i can send from www-data user?

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• Issue with https:// url going to an unknown location

  - by Brandon

  We have a website (ASP.NET/Plesk 9.5.5) that can be accessed just fine through the regular URL (http://example.com). However when accessing the site through https://example.com the site displays the invalid security certificate warning, which is fine since we don't have an SSL certificate. If I add an exception, I'm sent to a completely separate site that is apparently hosting a malware script (I'm still on https://example.com though). Because of this Google has flagged the site as dangerous. I can't find anything in the Plesk panel that would help fix this, and as far as I can tell those files don't exist on our server. How do I tell where the https:// link is sending me? I'm not that familiar with DNS, but is that what is causing this behavior?

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• Interface to collect successful remote backups status

  - by Aseques

  I would like to deploy into our infrastructure a web interface that could register when the copies are finished and if for some reason they haven't. The current issue is that we are doing on site backups for customers, for each backup a mail is sent ad the end of the backup, the problems is that sometimes the mail isn't sent for a variety of reasons: System doesn't have internet Backup system crashed before sending the mail etc.. What I'd like to do is to have a web interface that the backup software cant visit after doing the backup (either if it's a success or a fail), that acknowledges that the backup has finished, after some time, I'd like to receive a report of the machines that hadn't done the backup. Is there anything remotely similar to this that I could use/adapt to our environment? UPDATE: Just found out this (paessler.com) that seems to be a privative solution of what I intended.

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• Any Application to bind various documents

  - by Codeslayer

  I communicate with the client using various tools such as MS Outlook,Mailing through Google/ Yahoo accounts, sending Word or Excel documents as attachments through this mail. What I am looking at is there any tool which will help me in binding all these documents so that I may be able to virtually bind all these documents of a particular client. For example all these documents were sent to Client A 2 Outlook mails without attachment 2 Web mails with MS-Word attachment 1 Web Mail with Excel attachment Now I wish I had a document which would bind the Outlook mail bodies as text files MS-Word documents Excel document Previous versions of MS-Office had Office Binder. Is there something similar to this Thanx.

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• How do I leverage the power of my desktop from my laptop?

  - by TheDeeno

  I have a powerful desktop, and a decent laptop. My laptop is my primary machine. When I'm home, I'd like to "tap into" the power of my desktop while using my laptop. I'm not thinking a solution like "remoting in" and actually using my desktop from my laptop. I mean sending work to the desktop when my laptop is taxed in a seamless way. Is this possible at all? How would I do it? I'll do whatever is necessary to my desktop to enable this if it's feasible. My laptop has Vista installed.

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• How can Facebook's session get mixed up because of NAT and/or Proxy

  - by Alex

  Have received some reports from a customer (a very large company) they reported issues from clients who are using Facebook. These clients claim that once in a while when they log in to Facebook they end up in someone else's session. I know that network is NATed then Proxied before getting to Facebook.com. Although I'm not able to explain how this issue can occur. Is it possible that the Proxy is not sending the right session back to the clients? How can they end up with someone else's session since Facebook is cookie based session?? Anyone seen this before?

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• Provisioning SIP Phones over the internet

  - by Jorge Fernandez

  I have a few SIP Phones that are located of site and connect to my PBX over the internet to make calls. For some reason one of these phones has become unprovisioned. In my office phones get provisioned by the server via TFTP. The ones that I have off site I pre-provisioned manually before I sent them off-site (I'm in Florida the phone is in New Jersey). Whats the best way to provision these over the internet? TFTP is very insecure. Sending the plain text profiles with the SIP Account and Password over the internet is out of the question. The phones have been off-site for about 6 months without any issues. Im using Trixbox and Cisco 7940 Phones.

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• How should I troubleshoot a problematic wireless connection on Linux?

  - by Gearoid Murphy

  I recently purchased a netgear 150 usb wireless dongle for use with my 11.10 Xubuntu amd64 system. Using the network-manager interface, I can see local wireless networks and enter the authentication details for my local wireless lan. Unfortunately, the connection does not seem to work, I keep getting notifications that my wireless has disconnected (but none indicating that I've connected). When I examine syslog, it seems to indicate that I've successfully associated with the wireless switch and that dhcp has successfully acquired an ip address but the log shows that the dhcp process keeps sending requests, eventually dropping the connection. 'ifconfig wlan0' never shows the dhcp address logged in syslog. I suspect that the problem lies with the usb dongle, my configuration or the wireless switch but I am not certain how to isolate the problem, can anyone provide some insight on how I should go about homing in on the cause of this problem or verifying the functionality of the individual components, thanks.

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• SQL Server 2012 and SQLMail - will it still work?

  - by Kharlos Dominguez

  We are considering upgrading our SQL Server, which is currently running 2005. We use SQLMail heavily in the organization, both to send e-mails and to import some into a database. I've read on various places that SQLMail was deprecated and superseded by "Database Mail". I'm confused because this MS page: http://msdn.microsoft.com/en-us/library/bb402904.aspx seems to imply that it would still work? I understand the dangers of SQLMail but we do not have the resources to rewrite the scripts right now and would prefer to do it later on. Does SQLMail still work in 2012, and if not, how easy is it to replace with Database Mail, both for reading and sending e-mails?

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• timeout with apache & php w/ each virtual host has his own user process

  - by acemtp

  I have 10 unix users in /home/. Each user is for a specific subdomain for example user www in /home/www/public_html is for www.mywebsite. blog in /home/blog/public_html is for blog.mywebsite. 90% is php and 10% ror for the moment i use apache + fastcgi that use SuexecUserGroup to setup the process with the good user. it seems to works but i have a strange behavior where after a few hours/days, the server stop answering (timeout) but the cpu load is still very low (it's a big server), the apache status display lot of "W" Sending Reply states but there's still 50 idle workers so it should be able to answer. in the older server (lot of slower) we add only one user and using mod_php and we never had this issue. is there another way to do that without fastcgi and SuexecUserGroup or do you know what's going wrong?

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• Run Wave Trusted Drive Manager from a bootable CD, recover crashed enrypted SSD?

  - by TigerInCanada

  Is there a way to run Wave Trusted Drive Manager from a live-cd to access a non-bootable SSD with Full Disk Encyption hard disk? http://www.wave.com/products/tdm.asp The crashed disk is a Samsung SSD PB22-JS3, 128Gb. Is has bad blocks at 128-block intervals. If the SSD password could be unset, is sending the unit for disaster recovery possible? What might cause a nearly new SSD to crash in this way, and what is the probability of it happening again? We have other units in service an I can do without every laptop disk in the company crashing...

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• Limiting TCP sends with a "to-be-sent" queue and other design issues.

  - by Poni

  Hello all! This question is the result of two other questions I've asked in the last few days. I'm creating a new question because I think it's related to the "next step" in my understanding of how to control the flow of my send/receive, something I didn't get a full answer to yet. The other related questions are: http://stackoverflow.com/questions/3028376/an-iocp-documentation-interpretation-question-buffer-ownership-ambiguity http://stackoverflow.com/questions/3028998/non-blocking-tcp-buffer-issues In summary, I'm using Windows I/O Completion Ports. I have several threads that process notifications from the completion port. I believe the question is platform-independent and would have the same answer as if to do the same thing on a *nix, *BSD, Solaris system. So, I need to have my own flow control system. Fine. So I send send and send, a lot. How do I know when to start queueing the sends, as the receiver side is limited to X amount? Let's take an example (closest thing to my question): FTP protocol. I have two servers; One is on a 100Mb link and the other is on a 10Mb link. I order the 100Mb one to send to the other one (the 10Mb linked one) a 1GB file. It finishes with an average transfer rate of 1.25MB/s. How did the sender (the 100Mb linked one) knew when to hold the sending, so the slower one wouldn't be flooded? Another way to ask this: Can I get a "hold-your-sendings" notification from the remote side? Is it built-in in TCP or the so called "reliable network protocol" needs me to do so? Again, I have a loop with many sends to a remote server, and at some point, within that loop I'll have to determine if I should queue that send or I can pass it on to the transport layer (TCP). How do I do that? What would you do? Of course that when I get a completion notification from IOCP that the send was done I'll issue other pending sends, that's clear. Another design question related to this: Since I am to use a custom buffers with a send queue, and these buffers are being freed to be reused (thus not using the "delete" keyword) when a "send-done" notification has been arrived, I'll have to use a mutual exlusion on that buffer pool. Using a mutex slows things down, so I've been thinking; Why not have each thread have its own buffers pool, thus accessing it , at least when getting the required buffers for a send operation, will require no mutex, because it belongs to that thread only. The buffers pool is located at the thread local storage (TLS) level. No mutual pool implies no lock needed, implies faster operations BUT also implies more memory used by the app, because even if one thread already allocated 1000 buffers, the other one that is sending right now and need 1000 buffers to send something will need to allocated these to its own. This is a long question and I hope none got hurt (: Thank you all!

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• e-mail no longer coming to aol inbox since I opened a Hotmail account [closed]

  - by Dave

  I recently set up an email account with Hotmail. I have used AOL e-mail for years and would like to keep this as my main source for sending/receiving e-mail. When I set up the Hotmail account there was an option to have all my e-mail accounts forwarded to the Hotmail inbox. I set up this option and the page promised that all incoming mail would still be visible in the original inbox, in this case my AOL account. Well everything does come to the Hotmail account, the only problem is that I no longer receive these e-mails in my primary/desired location which is AOL. I went back and made sure the box was checked that provided the option through Hotmail that said "leave a copy of my messages on the server" (AOL) How do I get the e-mail that is being forwarded to Hotmail from my AOL account to still be visible in AOL, it should be in AOL inbox as that is the original destination but it is gone. Suggestions?

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• Is there anything like mail goggles for outlook?

  - by Eugene M

  Gmail has a cool feature that requires user interaction to send an email at certain hours of the day called mail goggles. Is there anything remotely like this for outlook? More specifically, what I'd like is some dialog that has a personal reminder (to make sure certain steps have been taken, like seeing who needs cc'd) and some sort of forced user interaction, like a checkbox. The tool would prevent you from sending he email until you had completed the interaction. If not, would it be possible to make something like this in VBA or as an addin? I realize this sounds like a really annoying feature, but I have a friend who is having a lot of trouble building certain email habits and this would be a sure-fire way to help.

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