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• Prevent SSL certificate being returned for a specific domain

  - by jezmck

  Apologies for a long question: We've taken on a new client whose web hosting was previously on their in-house server which still has their Exchange/Outlook email. We now host their domain (and many others) on our server. They're complaining that they're getting errors in Outlook. I don't understand the AutoDiscover stuff at the root of the problem, but believe that I just need to stop the SSL certificate on our server being returned when requested at a particular domain: Yes it is, the issue lies with "{newclient}.com" being pointed to your server IP and that server has Port 443 open with an SSL certificate associated to it. So when Outlook/ActiveSync use autodiscover to find the mailbox settings it find your SSL (because 443 is open) and flags it as an error. The solution is to close 443 so its not discovered, Autodiscover will then proceed to mail.{newclient}.com via the MX / ServiceRecords and discover the correct SSL. I'm new here and there was no hand-over, so I don't know whether other currently hosted sites need to accept SSL connections, though I suspect some will, or may in future. This is a live server, so I can't risk trying loads of options in case I take the server offline! I feel like I should be adding something like the following to vhosts.conf. <VirtualHost *:443> ServerName {newclient}.com ServerAlias www.{newclient}.com SSLEngine Off SSLCertificateFile {NONE} SSLCertificateKeyFile {NONE} </VirtualHost> Apologies for the fact that I don't know enough about this subject to be able to ask the question more clearly!

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• Cannot connect to remote mail server for sending emails in ASP.NET

  - by Dave

  I want to migrate a web application from a Windows Server 2003 to a Windows Server 2008 R2. All works fine except sending emails from the application. If I configure the application to use the smtp server on "localhost" it works, but changing it to the "real" host name (e.g. mail.example.org) no mail is sent. The error message says, that the remote server needs a secure connection or smtp authentication. But since it works when using "localhost" instead of the host name I doubt that this is the problem. Also it's unlikely a problem with the mail server, I also tried it with another one. So for me it seems like the firewall is blocking the outgoing connection to the mail server. I tried to open port 25, but it still did not work. Maybe I just did it the wrong way. Update: For clarifying my setup: I have a Windows Server 2008 R2 with hMailServer installed (set up for some of the hosted domains) For the website I'm talking about I need to use an external mail server (totally different hosting provider) Apparently I was a bit off the track. It seems like it works when using connecting to the local mail server either with the host name "localhost" or "mail.somedomain.com" (while somedomain.com is set up in my mail server). But when using the host name of the external mail server ("mail.externaldomain.com") it seems like it tries to connect to the local server again, although this domain is not set up in the mail server. Thanks to Evan Anderson for the tip to use telnet - why I have not thought of it myself?... :-) Note, the website www.externaldomain.com is hosted on my server but the DNS entries are maintained by the other hosting provider. "externaldomain.com" is the only entry which points to my server all other records (MX, subdomains) are pointing to the other server. So I think the question is now, how do i bring my server to connect to the external mailserver. Do I have to configure this in my mail server or is it a windows server thing?

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• System Slow After Uprading Ubuntu

  - by Aragon N

  I have an Ubuntu network machine which has release of 10.04.1 LTS Lucid. On this system I have Apache, PostgreSQL and django. For some app. development I have to install PGP and php-curl. Due to being on network, I have exported a VMware machine to the Internet and firstly I have upgraded the system and then installed php5 packages on it. I don't know is it all about django or apache configuration. Maybe some Apache settings had changed. In this case in apache where I have to look at ? After all replacing it with its old place, I see that the new system query is slow according to another. Old system query time : 140 ms New system query time : 9.11 s I have checked /etc/network interface and it seems there is no problem. I have checked /etc/resolv.conf and it seems OK I have checked /etc/nsswitch.conf and only host section is different from old one which old system has hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4 and then I have checked time host -t A services.myapp.com and I got real 0m0.355s user 0m0.010s sys 0m0.020s and I have checked apache2 HostnameLookups : find /etc/apache2/ -type f | xargs grep -i HostnameLookups It returned : /etc/apache2/apache2.conf:# HostnameLookups: Log the names of clients or just their IP addresses /etc/apache2/apache2.conf:HostnameLookups Off and now what can I have to check for boosting my system as before?

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• Prevent nginx from redirecting traffic from https to http when used as a reverse proxy

  - by Chris Pratt

  Here's my abbreviated nginx vhost conf: upstream gunicorn { server 127.0.0.1:8080 fail_timeout=0; } server { listen 80; listen 443 ssl; server_name domain.com ~^.+\.domain\.com$; location / { try_files $uri @proxy; } location @proxy { proxy_pass_header Server; proxy_redirect off; proxy_set_header Host $http_host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto https; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Scheme $scheme; proxy_connect_timeout 10; proxy_read_timeout 120; proxy_pass http://gunicorn; } } The same server needs to serve both HTTP and HTTPS, however, when the upstream issues a redirect (for instance, after a form is processed), all HTTPS requests are redirected to HTTP. The only thing I have found that will correct this issue is changing proxy_redirect to the following: proxy_redirect http:// https://; That works wonderfully for requests coming from HTTPS, but if a redirect is issued over HTTP it also redirects that to HTTPS, which is a problem. Out of desperation, I tried: if ($scheme = 'https') { proxy_redirect http:// https://; } But nginx complains that proxy_redirect isn't allowed here. The only other option I can think of is to define the two servers separately and set proxy_redirect only on the SSL one, but then I would have duplicate the rest of the conf (there's a lot in the server directive that I omitted for simplicity sake). I know I could also use an include directive to factor out the redundancy, but I really want to keep just one conf file without any dependencies. So, first, is there something I'm missing that will negate the problem entirely? Or, second, if not, is there any other way (besides including an external file) to factor out the redundant config information so that I can separate out the HTTP and HTTPS versions of the server config?

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• OpenSWAN KLIPS not working

  - by bonzi

  I am trying to setup IPSec between 2 VM launched by OpenNebula. I'm using OpenSWAN for that. This is the ipsec.conf file config setup oe=off interfaces=%defaultroute protostack=klips conn host-to-host left=10.141.0.135 # Local IP address connaddrfamily=ipv4 leftrsasigkey=key right=10.141.0.132 # Remote IP address rightrsasigkey=key ike=aes128 # IKE algorithms (AES cipher) esp=aes128 # ESP algorithns (AES cipher) auto=add pfs=yes forceencaps=yes type=tunnel I'm able to establish the connection with netkey but klips doesnt work. ipsec barf shows #71: ERROR: asynchronous network error report on eth0 (sport=500) for message to 10.141.0.132 port 500, complainant 10.141.0.135: No route to host [errno 113, origin ICMP type 3 code 1 (not authenticated)] Tcpdump shows 22:50:20.592685 IP 10.141.0.132.isakmp > 10.141.0.135.isakmp: isakmp: phase 1 I ident 22:50:25.602182 ARP, Request who-has 10.141.0.135 tell 10.141.0.132, length 46 22:50:26.602082 ARP, Request who-has 10.141.0.135 tell 10.141.0.132, length 46 22:50:27.601985 ARP, Request who-has 10.141.0.135 tell 10.141.0.132, length 46 ipsec eroute shows 0 10.141.0.135/32 -> 10.141.0.132/32 => %trap What could be the problem?

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• Display with intel integrated graphics, bitcoin mine with Radeon 6950

  - by karategeek6

  I'm on Ubuntu Linux 11.04 64 bit. I have an intel i5 with integrated graphics and a Radeon 6950, with one monitor. I would like to run my graphics on the integrated card, and run bitcoin mining on the 6950. I have bitcoin mining working when I use the 6950 for both display and mining. Every time I try and and use the integrated graphics instead, OpenCL doesn't recognize my 6950. Using aticonfig --initial when using the integrated graphics for display breaks things. So I used the xorg.conf it created as a basis and tried to manually edit it. I really don't know what I'm doing, though. My last attempt is given below. The graphics ran off the integrated card, but the 6950 wasn't recognized. Any help would be greatly appreciated! xorg.conf: #Section "ServerLayout" # Identifier "Intel Layout" # Screen "Default Screen" # Identifier "aticonfig Layout" # Screen "aticonfig-Screen[0]-0" # Screen 0 "aticonfig-Screen[0]-0" 0 0 #EndSection Section "Module" Load "glx" EndSection # Intel Section "Device" Identifier "Intel Integrated Graphics" Driver "intel" BusID "PCI:0:2:0" EndSection Section "Monitor" Identifier "Default Monitor" Option "VendorName" "Monitor Vendor" Option "ModelName" "Monitor Name" Option "DPMS" "true" EndSection Section "Screen" Identifier "Default Screen" Device "Intel Integrated Graphics" Monitor "Default Monitor" DefaultDepth 24 EndSection # ATI Section "Device" Identifier "aticonfig-Device[0]-0" Driver "fglrx" BusID "PCI:1:0:0" EndSection Section "Monitor" Identifier "aticonfig-Monitor[0]-0" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" EndSection Section "Screen" Identifier "aticonfig-Screen[0]-0" Device "aticonfig-Device[0]-0" Monitor "aticonfig-Monitor[0]-0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection

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• CSS and JS files not being updated, supposedly because of Nginx Caching

  - by Alberto Elias

  I have my web app working with AppCache and I would like that when I modify my html/css/js files, and then update my Cache Manifest, that when the user accesses my web app, they will have an updated version of those files. If I change an HTML file, it works perfectly, but when I change CSS and JS files, the old version is still being used. I've been checking everything out and I think it's related to my nginx configuration. I have a cache.conf file that contains the following: gzip on; gzip_types text/css application/x-javascript text/x-component text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon; location ~ \.(css|js|htc)$ { expires 31536000s; add_header Pragma "public"; add_header Cache-Control "max-age=31536000, public, must-revalidate, proxy-revalidate"; } location ~ \.(html|htm|rtf|rtx|svg|svgz|txt|xsd|xsl|xml)$ { expires 3600s; add_header Pragma "public"; add_header Cache-Control "max-age=3600, public, must-revalidate, proxy-revalidate"; } And in default.conf I have my locations. I would like to have this caching working on all locations except one, how could I configure this? I've tried the following and it isn't working: location /dir1/dir2/ { root /var/www/dir1; add_header Pragma "no-cache"; add_header Cache-Control "private"; expires off; } Thanks

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• Being a more attractive job candidate - Certs XOR Degree

  - by Zephyr Pellerin

  I'm currently working in an IT position, where I do helpdesk stuff, and predominantly security related issues/consulting (In the loosest sense of the term) In-House and for Service-Contract clients (as the only/acting CCSP [I guess I should say only person with Cisco experience] in my organization). I've professionally written Kernel Mode drivers for a gaming company. Among other things that I'm proud to put on a resume. I think of myself as very reasonably qualified as a System Administrator, With excellent Cisco experience, among other things I think would make a good addition to almost any IT staff in need of a new employee. However, Something has always tripped me up - Human Resources. Let me explain, I decided to skip the university route - I'm immensely glad that I did, The computer science graduates that I've met and work with rarely know much of anything about Computers (Until they gain some 'real' experience), Even when asked about Theoretical Computing fundamentals they can rattle something off about Turing Completeness but rarely do they understand the mathematical underpinnings. In short, I think instead of going to college, I'd rather pick up some real world experience. However, Apparently, Employers rarely think the same way. A quick perusal of jobs through the standard job search engine yields nothing short of a conspiracy to exclude anyone without 'A Bachelors Degree in Computer Science or Equivalent'. Interviews I've had in the past have almost always been entangled with - 1. My Age (Which I can't really change) and 2. Lack of Degree. Employers frequently disregard the CCNA/CCSP, The experience I've gained through internships, My extensive experience in x86 assembly and C, among so many other things I like to think are valuable to employers - In lieu of the fact that I don't have a piece of paper. So, AS AN EMPLOYER - Is it even worth working on my CCIE? Or should I pad my resume with certifications that are easier to acquire (Like CISSP, MSCE, Network+, etc.). Or should I ditch the whole idea and head back to get a Mathematics or CS degree?

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• Configuring three monitors with two Radeon X1600/X1650 graphics cards under Ubuntu

  - by cpm

  I have three SyncMaster 932a monitors I want to use with two Radeon X1600/X1650 cards under Linux. I am running X.org X Server 1.6.0, as provided by Ubuntu's Wubi installer. After turning off mirroring, I ended up with this xorg.conf: Section "Monitor" Identifier "Configured Monitor" EndSection Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Configured Video Device" SubSection "Display" Virtual 2560 1024 EndSubSection EndSection Section "Device" Identifier "Configured Video Device" EndSection The left monitor had a menu bar and a task bar, the center monitor was just desktop, and windows would maximize to the current monitor. The third monitor and second graphics card weren't being used at all. Then I changed my configuration to manually specify each card with their PCI bus: Section "ServerLayout" Identifier "TheLayout" Screen 0 "Radeon Screen 1" Screen 1 "Radeon Screen 2" RightOf "Radeon Screen 1" EndSection Section "Screen" Identifier "Radeon Screen 1" Monitor "Configured Monitor" Device "Radeon the First" SubSection "Display" Virtual 2560 1024 EndSubSection EndSection Section "Screen" Identifier "Radeon Screen 2" Monitor "Configured Monitor" Device "Radeon the Second" EndSection Section "Device" Identifier "Radeon the First" Driver "radeon" BusID "PCI:1:0:0" EndSection Section "Device" Identifier "Radeon the Second" Driver "radeon" BusID "PCI:2:0:0" EndSection Section "Monitor" Identifier "Configured Monitor" EndSection Now both the left and right monitors have task bars and menu bars. Windows cannot be dragged from the first two monitors to the third monitor. Also, maximizing in the left or center window fills both monitors. I also tried adding Option "Xinerama" "true" to the ServerLayout section. X11 wasn't able to start up. I want to: Allow moving windows along all three monitors. Maximizing only fills the current monitor. Either have menu/task bars on only the left monitor or all three monitors How can I make this possible?

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• Excel - "send to Mail recipient" creates 2nd copy of EMail in Inbox

  - by ssollinger

  When sending Excel sheets using the menu item "File" - "Sent To" - "Mail recipient (as attachment)" I get additional copies of the email in the Inbox. When I press "send" then I get 2 copies of the email in Outlook - as expected one in the Outbox (which moves into the Sent folder as soon it is sent off) and an additional one in the Inbox. How do I stop the copy message appearing in the Inbox? System: Excel 2000, Outlook 2000, Windows XP. Antivirus is AVG Free 2011. I know this is a very old system, but it is not my PC and there isn't any chance to get it replaced in the near future yet. SOme further details: The copy in the inbox appears at the same time as the normal copy goes into the Outbox (i.e. as soon I press send). It doesn't contain anything in the From field (i.e. there is no sender, just the recipient of the mail). It has a different icon in Outlook to the other emails - the icon is the one for "saved or unsent message". I tried it with a few different spreadsheets and it happens with all of them. It happens with every recipient, and it only happens if sending from within Excel (i.e. using the Send to menu item). I can delete the attachment before sending and it will still create a copy. If I create a new message in Outlook and then add the Excel document as attachment then I don't get the copy of the message in the inbox, it only happens when using the send to item in Excel. It only started doing this recently. Around that time the Antivirus (AVG Free) was upgraded to the latest version (from the previous version - 2010? - to version 2011), but this might not be related. I thought I know Excel really well but have never seen this happening before, and I can't find any setting in Excel or Outlook that is causing this. Any ideas?

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• Diagnosing Logon Audit Failure event log entries

  - by Scott Mitchell

  I help a client manage a website that is run on a dedicated web server at a hosting company. Recently, we noticed that over the last two weeks there have been tens of thousands of Audit Failure entries in the Security Event Log with Task Category of Logon - these have been coming in about every two seconds, but interesting stopped altogether as of two days ago. In general, the event description looks like the following: An account failed to log on. Subject: Security ID: SYSTEM Account Name: ...The Hosting Account... Account Domain: ...The Domain... Logon ID: 0x3e7 Logon Type: 10 Account For Which Logon Failed: Security ID: NULL SID Account Name: david Account Domain: ...The Domain... Failure Information: Failure Reason: Unknown user name or bad password. Status: 0xc000006d Sub Status: 0xc0000064 Process Information: Caller Process ID: 0x154c Caller Process Name: C:\Windows\System32\winlogon.exe Network Information: Workstation Name: ...The Domain... Source Network Address: 173.231.24.18 Source Port: 1605 The value in the Account Name field differs. Above you see "david" but there are ones with "john", "console", "sys", and even ones like "support83423" and whatnot. The Logon Type field indicates that the logon attempt was a remote interactive attempt via Terminal Services or Remote Desktop. My presumption is that these are some brute force attacks attempting to guess username/password combinations in order to log into our dedicated server. Are these presumptions correct? Are these types of attacks pretty common? Is there a way to help stop these types of attacks? We need to be able to access the desktop via Remote Desktop so simply turning off that service is not feasible. Thanks

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• Can I take my ReadyNAS drive in Raid1 and plug it straight into new different machine?

  - by jacko

  I would assume that I can just take my HDD out of my NAS (in raid1 mirror) and plug it into another enclosure and have it work off the bat but I'd like to make sure... Any ideas? Edit: My current setup is a Netgear ReadyNAS in (hardware) raid1. I'm hoping to replace this with a home theatre type PC (possibly running Ubuntu), and would like to migrate my data without having to do a bulk transfer over my network between the 2 machines. Can anyone confirm the case for the Netgear ReadyNAS? Edit: Ok after further reading it seems that the ReadyNAS Duo formats my drive as ext3 in 16k blocks. There are instructions for mounting a drive into a linux box here: Mounting Sparc-based ReadyNAS Drives in x86-based Linux There is also talk about a linux image here: ReadyNAS Data Recovery - VMware recovery tool I'm not sure whether this means they ReadyNAS actually implements software raid under the hood, or what? So it appears like it IS do-able, but do any of you linux guru's know whether this is viable and whether the fact that they are in raid 1 affect matters?

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• Laptop battery holds charge, but won't charge any more.

  - by Jeff

  Ok, I'm sure I will need to replace either my battery or my AC adapter, but would rather not buy one if the other is the problem. My problem is. I have a Sager laptop that gets quite a bit of use. The charging has always been a little bit odd. If I was in the process of using it, it would charge just fine and stay On AC power. If I left it alone, however(power settings to ONLY turn off the monitor) in either Ubuntu or Windows 7 it decides that it didn't want to use AC power anymore and would just start draining the battery until it died. Now, suddenly, it won't charge at all. The capacity was great up to this point which happened in an instant. It will recognize the battery but won't see the AC power if plugged in while the battery is in. I can power up the laptop without the battery and it works fine. If I plug in the battery while powered up it will claim it's charging it, but it stays at the same percentage. If I unplug the power, it will switch over to Battery fine, but I have to power down and unplug the battery to get it back on AC power. I've had dying/dead batteries before but they typically won't hold a full charge anymore but it still winds up to 100% then drops quickly when unplugged. This seems more like a chip problem in the battery to me, but I'm not sure. Any ideas?

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• Can Windows logoff events be tracked?

  - by Massimo

  I'm working on an application to track network user logon/logoff events in an Active Directory domain; the application will work by auditing security logs on domain controllers. Auditing logon events can get somewhat tricky, but it can succesfully be done. My problem: how can I track logoff events? Based on some research I've done, it looks like these events are only logged locally on workstations, but not on DCs; also, the "lastLogoff" attribute exists on AD user objects, but it's not actually used by anyone. This is a very specific question: is something logged on DCs when a user logs off from a domain workstation? To clarify: I'm not intereseted in other auditing mehods, I can't deploy logon/logoff scripts and I can't install anything anywhere; I also know opened and closed network sessions are logged, but this is not what I'm looking for. I need to audit interactive logons and logoffs to domain workstations, and I can do this by only reading domain controllers security logs; reading each workstation's local event logs is out of question. If this can't be done, it's ok; but I need a clear answer on that. Can this be done? If yes, how?

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• Apache httpd workers retry

  - by David Newcomb

  I have an Apache httpd web server running mod_proxy and mod_proxy_balancer. The whole of /somedir is sent to 2 worker machines which service the requests using the round robin scheduler. Each worker machine is running IIS but I don't think that is important. I can demonstrate the load balancer working by repeatedly requesting a single page which contains the IP address of the machine and can see that it switches from one to the other in a predictable round robin fashion. If I switch off one of the IIS servers and start requesting the same page then each page only contains the IP address of the machine that is up. However, if I start IIS and don't run my IIS application then /somedir returns 500 (as it should). I've added 500 to the failonstatus (Apache 2.4) so when it hits the error Apache places the worker machine into error state. Apache still returns the proxy error to the client though. How can I make Apache catch the proxy failure and retry using a different worker in the same way that a connection failure does. Update There is almost the same question asked in StackOverflow so joining them together. http://stackoverflow.com/questions/11083707/httpd-mod-proxy-balancer-failover-failonstatus-transperant-switching

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• Postfix: How do I Make Email Aliases Work?

  - by Nick

  The documentation claims that I can add aliases in a file (like /etc/postfix/virtusertable) and then use the "virtual_maps" directive to point to it. This does not appear to be working, however. My mail is bouncing with: Recipient address rejected: User unknown in local recipient table; If I mail the user from the server using the mail command, it works. mail myuser The message goes through postfix and inserts itself in the Cyrus inbox correctly. When I use fetchmail to get the user's messages off a pop3 server, postfix fails. The user's email is "[email protected]", but it doesn't seem to be mapping correctly to "myuser", the cyrus mailbox name. /etc/postfix/main.cf myhostname = localhost alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = localhost relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all mailbox_transport = lmtp:unix:/var/run/cyrus/socket/lmtp #lmtp:unix:/var/run/lmtp virtual_alias_domains = mydomain.com virtual_maps = hash:/etc/postfix/virtusertable /etc/fetchmailrc et syslog; set daemon 20; poll "mail.pop3server.com" with protocol pop3 user "[email protected]" password "12345" is "myuser" fetchall keep /etc/postfix/virtusertable [email protected] myuser postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no config_directory = /etc/postfix inet_interfaces = all mailbox_size_limit = 0 mailbox_transport = lmtp:unix:/var/run/cyrus/socket/lmtp mydestination = localhost myhostname = localhost mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 myorigin = /etc/mailname readme_directory = no recipient_delimiter = + relayhost = smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes virtual_alias_domains = mydomain.com Why is it ignoring my alias?

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• Node js server not responding outside localhost centos

  - by David Martinez

  I'm running a basic express server from CentOS but for some reason it is not responding outside of localhost, I have tried everything I have found on google but nothing works so far. This is my express server: app.listen(3000,"0.0.0.0"); If I do curl http://localhost:3000/ in the server it works fine. If I curl to the ip of the server it doesn't work. I already changed my iptables num target prot opt source destination 1 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 2 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 3 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:3000 There is currently a apache server running on port 80 with no problems. I also tried setting a VirtualHost on apache but it didn't work either: <VirtualHost *:80> ServerName SubDOmain.MyDomain.com ProxyRequests off <Proxy *> Order allow,deny Allow from all </Proxy> ProxyPass / http://localhost:3000/ ProxyPassReverse / http://localhost:3000/ ProxyPreserveHost on </VirtualHost> There is another virtual host working fine that redirects to another DocumentRoot. I'm running Node on root for testing purpose, but the node application owner is another user. All folders have 705 and files 664 Edit: I stopped apache and run my node app on port 80 and it working fine, I could access node app from my ip and domain.

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• Shrinking a large transaction log on a full drive

  - by Sam

  Someone fired off an update statement as part of some maintenance which did a cross join update on two tables with 200,000 records in each. That's 40 trillion statements, which would explain part of how the log grew to 200GB. I also did not have the log file capped, which is another problem I will be taking care of server wide - where we have almost 200 databases residing. The 'solution' I used was to backup the database, backup the log with truncate_only, and then backup the database again. I then shrunk the log file and set a cap on the log. Seeing as there were other databases using the log drive, I was in a bit of a rush to clean it out. I might have been able to back the log file up to our backup drive, hoping that no other databases needed to grow their log file. Paul Randal from http://technet.microsoft.com/en-us/magazine/2009.02.logging.aspx Under no circumstances should you delete the transaction log, try to rebuild it using undocumented commands, or simply truncate it using the NO_LOG or TRUNCATE_ONLY options of BACKUP LOG (which have been removed in SQL Server 2008). These options will either cause transactional inconsistency (and more than likely corruption) or remove the possibility of being able to properly recover the database. Were there any other options I'm not aware of?

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• Terrible noises from subwoofer of ACER Aspire 6930 with Realtek sound chip

  - by OneWorld

  After approximately 5-15 min of listening to music my subwoofer begins to make terrible noises. He's just "coughing". That began after 6 months I had this computer. Now I found out, that I can temporarily fix this problem by "restarting" the audio stream of the application that plays music. For example reloading last.fm page (reloads the flash file). Another way to reset the audio playback is switching the speaker configuration shown below in the screenshot. According to many posts on the internet like http://www.tomshardware.co.uk/forum/52918-20-acer-aspire-6935g-speaker-problem ACER support isn't any help Exchanging hardware doesn't fix the problem Even the later models have this problem Turning off the volume of the subwoofer is not an option to me. I still have warranty (I bought an extension of one year). I already tried about 15 versions of the Realtek driver with no success. I am not sure but MAYBE the problem did not occur on the original windows vista that was shipped with this computer. However, I removed the original windows for good reasons (english). What do you suggest me? Did anyone fix this problem? Maybe by writing a script which resets the audio streams every 5 minutes? Shall I take the effort to deal with the acer support until they give me another model? (I won't have a computer than for a longer time, will spend money on telephone hotlines (1,30 EUR / min)......) Here are additional infos, if they are any help: Windows 7 64 Bit (Original was Windows Vista Home Premium 32 Bit) All specs Audio driver version:

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• Homebrew large data cluster access for 2 user levels?

  - by Yegor

  The title probably makes little sense, so here is an example. I have a file hosting site, that serves a large amount of semi-randomly accessed files. The setup is as follows: High horsepower front-end +DB server that also does encoding for files that need encoding Fresh file server, which stores newly uploaded content, thats probably (and usually) rapidly accessible, which has 500GB of raided SSD storage, that can push over 3GBit of traffic. 3 cheap node servers, containing 2 x 750GB SATA drives in raid1, where files older than 2 weeks are archived, from the SSD server (mentioned above). Files on each server are accessed via subdomains (via modsec) in a straight forward fashion (server1.domain.com, server2.domain.com, etc) Where I have the problem is this. I introduced a "premium" service where people pay a small fee every month, and get ad-free, quick accesses to stuff on the site. Once they are logged in, they access same files via premium.server1.domain.com via a different modsec script, with a different pass phrase. That all works fine and dandy.... except the cheap node servers are all IO bound, so accessing the files on them via a different, unsaturated network makes no difference, since it cannot read off the drive fast enough. What would be a good way to make files on the site be accessible via 2 different network routes, 1 of which will be saturated (the "free network") while all other files are on an un-saturated "premium" network?

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• How do I stop VLC from stealing my volume buttons

  - by MGOwen

  when I press the volume buttons on my laptop, usually the system volume is changed. However, when I do this with VLC it "steals" the presses and adjusts it's own "volume" instead. The system volume is also changed. I can't find any way to turn this off in VLC. Does anyone know? Update: Sorry, some more details I should have included originally: VLC VERSION: 1.1.4 (and a few previous releases, back to about 1.1.0 or so, I think) OS: Win Vista Pro 32 HARDWARE: Dell 1720 laptop (the volume buttons are little buttons on the front of the unit, they may work something like "media" keyboard volume buttons) Update: The buttons seem to map to Ctrl+Alt+b and Ctrl+Alt+c (according to the shortcut key box in windows shortcut properties) but the VLC advanced preferences hotkeys screen doesn't list these as the keys it uses for volume. I changed it so there are no volume hotkeys in VLC settings - no luck it still steals the presses and adjusts the volume. Also, pressing Ctrl+Alt+b or c doesn't change my system volume, so who knows what windows or VLC are doing to recognise those volume buttons. :(

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• Disconnect from PHP after output generated

  - by Oli

  I have a LEMP stack. Nginx sitting in front of PHP-FPM. Because some of the sites are heavy and there's OPCode caching, PHP is set up so that there are only 5 child processes running. The aim being that each child can deal with any request in less than half-a-second and then move onto the next request. One problem I've found is that if it's a big chunk of HTML that's getting sent out, and the user has a slow connection, that PHP thread stays occupied until they've finished downloading. Because of my current setup, I have a pretty unforgiving timeout inside PHP where the script is killed after 20 seconds. This is to make sure everybody gets a turn but on a slow connection, this can mean the user gets cut off with a 504 Gateway timeout. I was wondering if there was some sort of buffer solution that I could implement within or just behind Nginx that sent the request through and then... well... buffered the content into its own cache and feed that onto the client as and when they could download it. The aim being that the underlying PHP thread can be freed up. What I'm asking for doesn't have to be PHP-specific. Anything that deals with FastCGI, or even any Nginx-upstream might have a similar issue to this.

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• How to diagnose remote assistance problem

  - by cantabilesoftware

  I have a long standing issue with remote assistance between a home and work PC. My wife and I both use MSN messenger and I used to be able to control her PC at home via MSN Remote Assistance. Some time ago however this stopped working and I don't know why. We're both running the latest versions of MSN Live Messenger and I've checked the appropriate firewall ports are open, but it still doesn't work and MSN just says something useless like "The person isn't responding". Any suggestions for how can I diagnose this? More info: I just tried direct Remote Desktop between work PC and home PC and it works fine - so I presume all the appropriate ports are open. Just Remote Assistance doesn't work. I'd like to get RA working so I can demonstrate how to do things remotely. With Remote Desktop the person at the other end gets booted off and can't see. With Remote Assistance they can follow along step by step. Some comments below suggest using other solutions, which is fine and do work, but there must be a way to diagnose RA and get it working. Experimenting with this some more, the notebook that I was using at work today that refused to connect works fine for remote assistance when I bring it home. So I guess this must be a problem with our network configuration at work. I've checked that 3389 is open on firewall on office router and remote desktop works both ways.... just not remote assistance. I've read that remote assitance won't work if client and server are both behind Non-UPnP/NAT routers. If one has UPnP it's supposed to work. Office router doesn't have UPnP enabled but my home one does. I've also scoured the event logs on both ends, nothing noteworthy - unless I'm looking in the wrong spot). Note (copied from comment): I've just tried ShowMyPC which is based on VNC and it works, but I'd still like to figure out what's wrong with RA - it's just bugging me. The question is only about Remote Assistance, no need to propose solutions based on other programs.[/edit by Gnoupi]

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• Windows 7 BSOD when I walk away from the computer

  - by bobobobo

  I have a really weird experience with this new AM3 box I set up. Everything seems fine at first. But now I get frequent (daily) BSOD's, mostly when I walk away from the computer for more than 5 minutes (when the computer is idle). The BSOD's as shown by BlueScreenView almost always have to do with ntoskrnl.exe, and they'll do with really normal sounding operations, like SYSTEM_SERVICE_EXCEPTION, NTFS_FILE_SYSTEM, DRIVER_IRQL_NOT_LESS_OR_EQUAL, KMODE_EXCEPTION_NOT_HANDLED, BAD_POOL_HEADER - You name it. These are basically them, and they repeat after that, just random order. Its not like one is more consistently the problem than the other. I have Windows update ON and I let it do its updates everytime it wants to. I turned windows indexing service off, but it seems Windows 7 does a lot of background processing when I'm away - I'll come into the room and the fan will be going nuts (I'm pretty sure this isn't because the computer flies into a panic whenever I leave). I tried finding updates for my ASUS, and really there isn't much to install (except some new driver firmware). I'm going to install that to see if it helps, but what else could it be? Is it possible its a hardware issue with the board? Or is every Windows 7 user experiencing daily BSOD these days that I don't know about?

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• Affordable combined Ruby/Rails/Redmine + Subversion hosting?

  - by Pekka

  I'm a self employed web developer and after nine years of hard work, I'm looking to become a bit more "vagrant" starting next year, do some much-needed traveling and a bit and work off and on, making use of one of the greatest advantages of a programming job: The ability to work virtually from everywhere. For that, I am looking for a reliable hosting company I can entrust my code to in the form of a number of Subversion repositories, and an installation of the Redmine project management tool. As my financial situation may vary during traveling, I am looking for something I can pay up front for a year or two, and is obviously not too pricey. I don't care where the company is located, as long as it's trustworthy and solid, meaning it's not likely to go out of business next month. Does anybody know good recommendations? Preferably from own, personal, good experience. I have looked at CVSDude / Codesion and while they are certainly great, they don't offer Redmine of course, and seem to be aiming toward bigger organizations mainly. What I would need: 2-5 Gigs of space minimum, freely distributable between SVN, and Redmine attachments Unlimited number of Subversion projects Access control (team members / checkout-only accounts / etc.) I don't mind configuring the svn settings on file basis myself I need the possibility to map a custom domain to the package that is hosted elsewhere Frequent backups and access to those backups through FTP or other means I have been running my own virtual server for this until now, but I don't want the hassle, especially on the security side, while I may not always have the internet connection to fix problems that may come up.

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