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• Do I need a ssl certificate if just pointing my domain to Cloudfront?

  - by hashpipe

  I have a website running on a domain (e.g site.com). I have an additional domain(e.g sitecdn.com) which basically points to Amazon Cloudfront for delivery. Amazon Cloudfront in turn basically fetches the data from the main domain (site.com). I use this setup primarily to have multiple subdomains of my sitecdn.com to point to assets via the cdn. The main website has a ssl certificate, and I intend to put all assets served from the cdn as https links only. Something like <img src="https://img.sitecdn.com/image.jpg" /> I'm a little confused whether I need a ssl for my cdn domain. In cloudfront I can set the setting to allow both https and http traffic. Do I need a ssl certificate for this ? If yes, then where do I install the ssl certificate, since I don't have a server for sitecdn.com.

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• Is there a way to change the date format used when InfoPath saves the form data to xml?

  - by Robert

  I have an InfoPath Form template that has some Date Picker controls in it bound to elements in an xml data source. I know I can change the display format of the date by going into the Date Picker Properties and setting the date format. This foramt is only used for display puposes when the form is being filled out. When the form is saved as an xml file the date is always stored in the format YYYY-MM-DD. Is there a way to change the date format that gets serialized to xml? I'm using InfoPath 2007.

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• SFML - Moving a sprite on mouseclick

  - by Mike

  I want to be able to move a sprite from a current location to another based upon where the user clicks in the window. This is the code that I have: #include <SFML/Graphics.hpp> int main() { // Create the main window sf::RenderWindow App(sf::VideoMode(800, 600), "SFML window"); // Load a sprite to display sf::Texture Image; if (!Image.LoadFromFile("cb.bmp")) return EXIT_FAILURE; sf::Sprite Sprite(Image); // Define the spead of the sprite float spriteSpeed = 200.f; // Start the game loop while (App.IsOpened()) { if (sf::Keyboard::IsKeyPressed(sf::Keyboard::Escape)) App.Close(); if (sf::Mouse::IsButtonPressed(sf::Mouse::Right)) { Sprite.SetPosition(sf::Mouse::GetPosition(App).x, sf::Mouse::GetPosition(App).y); } // Clear screen App.Clear(); // Draw the sprite App.Draw(Sprite); // Update the window App.Display(); } return EXIT_SUCCESS; } But instead of just setting the position I want to use Sprite.Move() and gradually move the sprite from one position to another. The question is how? Later I plan on adding a node system into each map so I can use Dijkstra's algorithm, but I'll still need this for moving between nodes.

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• How do I allow end user 'blocked sender lists' to work even if the server manages spam filtering?

  - by Myrddin Emrys

  Client filtering in Outlook 2010 is disabled when the server is managing spam filtering. Unfortunately I have a few high profile users that prefer to spam-block mailing lists rather than unsubscribe, so even though the email is not really spam they are upset that it is coming into their mailbox. As seen here, I am not the first person to wrestle with this issue, and the suggested fix there (setting New-FseExtendedOption –Name CFAllowBlockedSenders –Value true) also failed to work for me. Can anyone provide another possible fix? Thank you kindly.

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• Bootcamp's "Use all F1, F2, etc. keys" switches back automatically

  - by cheeesus

  I use Windows 7 in a Bootcamp partition on my iMac. I always check the option "Use all F1, F2, etc. keys as standard function keys", and when it's checked, everything works great. But recently, something switches this setting back to 'unchecked' every few minutes. I constantly have to open the Boot Camp Control Panel, uncheck the checkbox, check it again and click on 'Apply'. And five minutes later, the F2 key again controls the brightness of the screen and not the renaming of files in Explorer. This is driving me mad. What could be the cause of this? Is there a keystroke to switch this feature?

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• Boot Camp fails to create a Windows partition because it can't move files

  - by Jens Bannmann

  I'm running Mac OS X 10.6 (Snow Leopard) on a mac with a 320 GB drive, 167GB free space, and I can't get Boot Camp running. The wizard starts creating the Windows partition, but fails with a message claiming it cannot move some files. The message suggests to back up my hard disk, reformat it, restore my files, and re-run Boot Camp wizard. The problem is: Though I do have backups (Time Machine), I don't feel like formatting my hard disk right now :-) I found a thread in some forum discussing this problem. The suggestion was to defragment my volume with iDefrag, and lots of people claimed that solved the issue. So I went ahead and got iDefrag 1.7.1, created a bootable DVD and chose the "compact" setting recommended before partitioning - but still no luck with Boot Camp! So how do I get this working? Fun note: last year, I briefly set up Boot Camp with 10.5, and it worked perfectly. Probably I did not use that much hard disk space back then...

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• Restore default ownership in CentOS after terrible chown

  - by tgm

  Is there any way to restore the default ownership of a CentOS filesystem after an accidental chown -R user:group /* ? Before I go and reinstall, I thought I'd ask and perhaps save some time. I'm in the process of setting up a new dev machine (thankfully not prod) and typed too fast or missed the . key or something. I tried to cancel as soon as I caught it but all my /bin /boot /dev etc had already been changed. Is there hope, or just reinstall and be happy it wasn't a production machine?

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• virtualbox ftp hangs on list command

  - by Tiddo

  Hi all, I have virtual box installed on a windows 7 64-bit computer, with Cent OS 5.5 as guest os. I want to be able to use ftp between those. I've installed vsftpd on the guest os, and the guest os uses a nat connection with the host os for internet. So far, I am able to connect to the guest os using ftp (in filezilla), but after the list command is executed, nothing happens, until the command is timed out. This happens in both active and passive mode. I do have set a pasv_min/max_port in the vsftpd.conf file, listing is enabled, and the ports are redirected in virtualbox. Also the ftp_data_port is set to 20. I also tried setting the pasv_address, but I had to set it to 127.0.0.1, but than filezilla gives me this: Command: PASV Response: 500 OOPS: bad family Command: PORT 127,0,0,1,139,204 Response: 500 OOPS: child died Can someone help me with this?

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• Changing the placement of the left border of tables in Word

  - by mkva

  Is it possible to have tables in Word such that the border lines align with the text outside the table? In MS Word, the left-side (and also the right-side) border is by default not aligned with the rest of the text on a page. It's actually the text in the first column of a table that is aligned with the text outside the table. And the table border is a little bit to the left. I find this layout quite a bit annoying, as I don't want to have any elements on a page outside the range that is used by normal text. I know that I can change the column delimiters manually (via the ruler). I'm looking for some more automatic way like setting the defaults for the whole document or such.

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• Be There: Tinkerforge/NetBeans Platform Integration Course

  - by Geertjan

  Tinkerforge is an electronic construction kit. It exposes a number of API bindings, including, of course, Java. The nice thing also is that Tinkerforge products are open source, both on the hardware and software levels, so that you can take their bases as a starting point for your own modifications. "The TinkerForge system is a set of pre-built electronics boards that are built in such a way that you can stack the boards (known as bricks), attach accessories (known as bricklets), and have your prototype and and running quickly. Unlike systems, such as the Arduino or Launchpad, the TinkerForge has to be attached to a computer and the computer does all of the work. With an easy set of application programming interfaces (APIs) available in C/C++, C#, Java, PHP, and Ruby, the system is easy to interface and program over USB in a snap." (from this useful article) Henning Krüp, who has arranged several NetBeans Platform Certified Training Courses in the past, in the Nordhorn/Lingen area in Germany, had the inspired idea to focus the next course on integration with Tinkerforge. In other words, the whole course will be focused on creating a standalone Java desktop application that leverages the NetBeans Platform to interact with Tinkerforge! Interested in joining the course or setting up something similar yourself? The course organized by Henning will be held from 19 to 21 September, as explained here, together with contact details.  If you'd like to organize a similar course at a location of your choosing, leave a comment at the end of this blog entry and we'll set something up together!

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• What is the difference between /sbin/nologin and /bin/false?

  - by Michael Hampton

  I have often heard it recommended that a user account should be disabled by setting its shell to /bin/false. But, on my existing Linux systems, I see that a great number of existing accounts (all of them service accounts) have a shell of /sbin/nologin instead. I see from the man page that /sbin/nologin prints a message to the user saying the account is disabled, and then exits. Presumably /bin/false would not print anything. I also see that /sbin/nologin is listed in /etc/shells, while /bin/false is not. The man page says that FTP will disable access for users with a shell not listed in /etc/shells and implies that other programs may do the same. Does that mean that somebody could FTP in with an account that has /sbin/nologin as its shell? What is the difference here? Which one of these should I use to disable a user account, and in what circumstances? What other effects does a listing in /etc/shells have?

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• Booting Error while using 12.04 booting from GRUB

  - by Paul Z.

  my name is Paul. I have encountered an issue relating to GRUB booting and the booting process in general. I have been running Ubuntu 12.04 LTS on my machine for quite a while. Before that, i had (before) 10.04, 11.04, 11.10, etc. I have been running Ubuntu, in general, but more specifically 12.04 for a long time with little to no problems. The problem: Earlier today, i was using my machine and then decided to take a little break. I shut down my machine (laptop, in case anyone was wondering) and left. Later, I came back ready to start it up and continue. I started it up and it took me to the Toshiba screen (like normal) then to the GRUB screen. I guessed that nothing was truly wrong, and chose the first option (something around the lines of: Ubuntu, with linux 3.22.0-35-generic). I waited for a bit and it still displayed the same purple screen. I restarted it and now chose the option like the first but with recovery at the end. Same result. Later, I waited longer and found that my computer came up with a bunch of lines of script. I waited longer but nothing new happened. What are your suggestions as to fix this problem? I will let my computer run overnight with the recovery setting and will let you know what the result is. Until then, please help. Thank you, your time and effort is greatly appreciated!

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• SBSMonitoring.mdf reached limit

  - by Bastien974

  I have SBS 08 Standart. I have some Error in my Event Viewer with MSSQL$SBSMONITORING Event id 1105, 1827: Could not allocate space for object 'dbo.EventLog'.'PK_EventLog' in database 'SBSMonitoring' because the 'PRIMARY' filegroup is full. Create disk space by deleting unneeded files, dropping objects in the filegroup, adding additional files to the filegroup, or setting autogrowth on for existing files in the filegroup. CREATE DATABASE or ALTER DATABASE failed because the resulting cumulative database size would exceed your licensed limit of 4096 MB per database. I tried to schrink the database, worked for SBSMonitoring_log.LDF but nothing for the SBSMonitoring.mdf, still 4096MB. I don't know how to reinstall the monitoring. Thanks for your help.

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• X11 display over ssh with monitor connected to remote machine

  - by Sumit

  I have the following setup: Machine A (a.corp, 192.168.100.130, local machine) and Machine B (b.corp, remote machine) and a monitor is connected to each of these machines. When I ssh from a.corp to b.corp as $ ssh -X b.corp $ xclock Error: Can't open display: I tried setting the DISPLAY variable as $ ssh -X b.corp $ export DISPLAY=`echo $SSH_CLIENT|cut -f1 -d\ `:0.0 $ echo $DISPLAY 192.168.100.130:0.0 $ xclock xclock's display opens up but on the monitor connected to b.corp (remote machine) and not on the monitor connected to a.corp (local machine). Is there a way to force the display to appear on the monitor of the local machine (a.corp)?

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• ssh login fails for user with empty password

  - by Reid

  How do you enable ssh login on OS X 10.8 (Mountain Lion) for a user with an empty password? I've seen others asking this question, and like me it's for the same reason: a parent who can't deal with passwords. So "set a password" is not an option. I found references to adding "nullok" to various PAM config files. Didn't work. Found sshd config "PermitEmptyPasswords yes". Didn't work. I've done a diff on "ssh -vvv" between a successful ssh with a password-enabled account and the one with no password. 54,55c54,55 < debug2: dh_gen_key: priv key bits set: 133/256 < debug2: bits set: 533/1024 --- > debug2: dh_gen_key: priv key bits set: 140/256 > debug2: bits set: 508/1024 67c67 < debug2: bits set: 509/1024 --- > debug2: bits set: 516/1024 79c79 < debug2: key: /Users/rae/.ssh/rae (0x7f9a0241e2c0) --- > debug2: key: /Users/rae/.ssh/rae (0x7f81e0c1e2c0) 90,116c90,224 < debug1: Authentications that can continue: publickey,keyboard-interactive < debug2: we did not send a packet, disable method < debug3: authmethod_lookup keyboard-interactive < debug3: remaining preferred: password < debug3: authmethod_is_enabled keyboard-interactive < debug1: Next authentication method: keyboard-interactive < debug2: userauth_kbdint < debug2: we sent a keyboard-interactive packet, wait for reply < debug2: input_userauth_info_req < debug2: input_userauth_info_req: num_prompts 1 < debug3: packet_send2: adding 32 (len 14 padlen 18 extra_pad 64) < debug1: Authentications that can continue: publickey,keyboard-interactive < debug2: userauth_kbdint < debug2: we sent a keyboard-interactive packet, wait for reply < debug2: input_userauth_info_req < debug2: input_userauth_info_req: num_prompts 1 < debug3: packet_send2: adding 32 (len 14 padlen 18 extra_pad 64) < debug1: Authentications that can continue: publickey,keyboard-interactive < debug2: userauth_kbdint < debug2: we sent a keyboard-interactive packet, wait for reply < debug2: input_userauth_info_req < debug2: input_userauth_info_req: num_prompts 1 < debug3: packet_send2: adding 32 (len 14 padlen 18 extra_pad 64) < debug1: Authentications that can continue: publickey,keyboard-interactive < debug2: we did not send a packet, disable method < debug1: No more authentication methods to try. < Permission denied (publickey,keyboard-interactive). --- > debug1: Server accepts key: pkalg ssh-dss blen 433 > debug2: input_userauth_pk_ok: fp 6e:02:20:63:48:6a:08:99:b8:5f:12:d8:d5:3d:e1:fb > debug3: sign_and_send_pubkey: DSA 6e:02:20:63:48:6a:08:99:b8:5f:12:d8:d5:3d:e1:fb > debug1: read PEM private key done: type DSA > debug1: Authentication succeeded (publickey). > Authenticated to cme-mini.local ([192.168.1.5]:22). > debug2: fd 7 setting O_NONBLOCK > debug3: fd 8 is O_NONBLOCK > debug1: channel 0: new [client-session] > debug3: ssh_session2_open: channel_new: 0 > debug2: channel 0: send open > debug1: Requesting [email protected] > debug1: Entering interactive session. > debug2: callback start > debug2: client_session2_setup: id 0 > debug2: fd 5 setting TCP_NODELAY > debug2: channel 0: request pty-req confirm 1 > debug1: Sending environment.

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• How to stop scheduled chkdisk on windows 7?

  - by AndrejaKo

  Hi! I have a problem with windows 7 64-bit. I was trying out chkdsk command line options and scheduled a chddsk /r on next start. After that I disassembled the laptop on which I set the chkdsk. After I reassembled it, windows gets normally to the point where it should start the check and then hangs when the countdown reaches 1 second. During the countdown, it doesn't detect any input from keyboard. At first I thought that I didn't correctly install the keyboard, but under GNU/Linux, everything is working fine and I can normally mount the windows partition . So is there any way to stop the scheduled chkdsk? I really don't feel like reinstalling windows again because I just finished setting up my tool-chain the way I like it and compiled about 6GiB worth of dependencies I need for some project I'm working on.

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• In Djano, why do I get a 500 server error when browsing, but "python mysite.fcgi" from SSH works fin

  - by Jim

  If I browse to my site, I get a 500 "internal server error." However, if I SSH into my server and go to my site's folder and run "python mysite.fcgi" I see the HTML rendered fine. Obviously, something is wrong, but I'm not sure what. Here is my .htaccess file: AddHandler fastcgi-script .fcgi RewriteEngine On RewriteRule ^(media/.*)$ - [L] RewriteRule ^(static/.*)$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)$ mysite.fcgi/$1 [QSA,L] Here is my mysite.fcgi file: #!/usr/bin/python2.5 import sys, os sys.path.insert(0, "/kunden/homepages/34/[mydir]/htdocs/projects/django") sys.path.insert(1, "/kunden/homepages/34/[mydir]/lib/python/site-packages") os.chdir("/kunden/homepages/34/[mydir]/htdocs/projects/django/mysite") os.environ['DJANGO_SETTINGS_MODULE'] = 'mysite.settings' from django.core.servers.fastcgi import runfastcgi runfastcgi(["method=threaded", "daemonize=false"]) I'm setting this up on 1and1. It has been a pain, but I think I'm close.

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• Elastic Load Balancer & SSL termination

  - by Aaron Scruggs

  I am setting up a Rails app on AWS that: 1) all traffic must ssl encrypted 2) will highly fluctuate in traffic on a weekly basis 3) will by maintained by someone that is a stronger coder than sysadmin, but will be responsible for both I am thinking that SSL termination on an elastic load balancer backed by small ec2 instances running nginx and unicorn A small subset of the requests will take longer than 10s, because of this I am also debating using 'thin' instead of 'unicorn'. My question is this: Is this sane? I am stepping into a quagmire of cost, maintainability, security or performance problems?

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• Can I make the Courier email server use a non-default salt for passwords?

  - by Vasiliy Stavenko

  I'm setting up email server for the first time and confused with strange thing. I have several user accounts which stored in previous server. Passwords for this accounts are in plain text. But I want to create crypts for them. MySQL (where my users will be stored) have function encrypt(passwd, salt). If no salt given used random value. I discovered that Courier uses one certain salt and crypted all passwords with it. So the task done. But I'd like to know if there's a way to define my own salt for my pop3 server?

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• Can I make the Courier email server use a non-default salt for passwords?

  - by Vasiliy Stavenko

  I'm setting up email server for the first time and confused with strange thing. I have several user accounts which stored in previous server. Passwords for this accounts are in plain text. But I want to create crypts for them. MySQL (where my users will be stored) have function encrypt(passwd, salt). If no salt given used random value. I discovered that Courier uses one certain salt and crypted all passwords with it. So the task done. But I'd like to know if there's a way to define my own salt for my pop3 server?

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• Will unbinding a server to an Open Directory Master remove its own file shares

  - by scape

  According to this article: http://support.apple.com/kb/TS3180?viewlocale=en_US I am required to remove the ldap binding of my second Mac OS X Lion server before I set it up as a replica server. I initially set the server up as a replica, or so I thought, and created file shares (it refers to the first server's ACL) before I realized it was never promoted as a replica server. So as of now it's running and shares files with correct ACL permissions but if the Master goes down all the file shares seize up. I want to set it up as a replica so this is not an issue; however, I don't want to lose the file shares and their permissions as I remove the binding and restart the server-- apparently I must remove the ldap binding to the OD Master (also a Mac OS X Lion server) before setting it up as a replica.

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• Wordpress multisite and redirect

  - by Dr I

  I come to you because I'm facing a really strange effect on my hosting. I currently manage a server contening a NGINX/PHP-CGI and a wordpress multisite in it. My sites are created using subsite.domaine.tld, for now, my three subsites are correctly accessibles through the url: subsite.domain.tld. My goal is to allow my subsite on the host domain to be access through their respective unique domain. For exemple: www.domainA.com would redirect to subsite1.host.domain.tld. If I do that using the following setting on the domainA Public DNS: www 10800 IN CNAME subsite1.host.domain.tld. When I try to access www.domainA.com I don't go to subsite1.host.domain.tld but instead I'm redirect to the Wordpress ROOT site where I create my Network (host.domain.tld). Is there a trick to deal with?

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• Accessing localhost via IIS 7.5 on Windows 7 very slow

  - by Ian Devlin

  (I've asked this over on stackoverflow already, but thought I'd ask here as well) I'm currently running an ASP.NET application on IIS 7.5 on Windows 7. When I access this application on Internet Explorer (either 6, 7 or 8) it is incredible slow and often fails to load at all. There are messages at the bottom saying: Waiting for http://localhost/....... or sometimes waiting for about:blank (I've read that this can be a virus, but I've run all the usual checks and it's not). constantly, but it returns with the usual: "Internet Explorer cannot display the webpage" I've also tried this by using 127.0.0.1 and the machine name, with the same results. I've tried the same application on the latest Firefox, Safari, Chrome and Opera and they all work fine. I've also installed the same application on a Windows Server 2003 machine, and it all works fine via Internet Explorer. I've also turned off the IPv6 setting on the LAN connection. Soes anyone have any ideas why this doesn't work with Internet Explorer and yet does with other browsers?

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• KVM not installed?

  - by NJRandy

  When I run virt-manager, and click on the icon to create a new virtual machine, I get an error that KVM is not installed or is not loaded. I use Ubuntu GNOME 14.04 All qemu packages are version 2.0.0+dfsg-2ubuntu1 qemu-kvm and many other qemu packages installed... libvirt packages: 1.2.2-0ubuntu13.1 libvirt0 libvirt-bin libvirt-doc python-libvirt virt-manager 0.9.5-1ubuntu3 When I open terminal and enter lsmod | grep kvm I get nothing returned. No lines showing kvm or kvm_amd and no error of any kind. Hardware: Tyan S2877 with dual Opteron 285s I have the latest bios and don't see any setting in there to turn virtualization on or off. when I run sudo apt-get -s install qemu-kvm Here are the results: Reading package lists... Done Building dependency tree Reading state information... Done qemu-kvm is already the newest version. The following packages were automatically installed and are no longer required: kde-l10n-engb libgtk2-gladexml-perl libqt4-test libvncserver0 Use 'apt-get autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded. @jobin: the problem was my hardware. I just bought it a few months ago, although obviously used LOL

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• Missing X-Spam-Status header

  - by Walt Stoneburner

  I recently upgraded to Ubuntu 14.04.1 LTS (trusty) and have followed the directions in https://help.ubuntu.com/14.04/serverguide/mail-filtering.html and am sending and receiving mail just fine. While I do see X-Virus-Scanned headers in my messages, which suggests mail is indeed being processed, I do not see any X-Spam-Level or X-Spam-Score headers being added to messages. This makes downstream procmailrc and client-side filtering ...more difficult. While having $final_spam_destiny = D_DISCARD in /etc/amavis/conf.d/20-debian_defaults does greatly reduce spam to my inbox, I had concerns of false-positives prior to tuning and didn't know were there going, so have set it to D_PASS for the time being. This exposed the problem. I'm not sure where to look to start diagnosing the problem (otherwise I'd post a suspect configuration file). /etc/amavis/conf.d/15-content_filter_mode has the lines uncommented to enable virus and spam checks, and virus checking appears to be working according to the headers. Spam Assassin certainly seems to be starting just fine, too. SpamAssassin debug facilities: info SA info: zoom: able to use 360/360 'body_0' compiled rules (100%) SpamAssassin loaded plugins: AskDNS, AutoLearnThreshold, Bayes, BodyEval, Check, DKIM, DNSEval, FreeMail, HTMLEval, HTTPSMismatch, Hashcash, HeaderEval, ImageInfo, MIMEEval, MIMEHeader, Pyzor, Razor2, RelayEval, ReplaceTags, Rule2XSBody, SPF, SpamCop, URIDNSBL, URIDetail, URIEval, VBounce, WLBLEval, WhiteListSubject SpamControl: init_pre_fork on SpamAssassin done I've also set $log_level = 2; in /etc/amavis/conf.d/50-user and don't see any obvious errors rolling by in the logs. Q: Any recommendations of what to try next? UPDATE (it appears that I have the right setting already): /etc/amavis/conf.d$ grep sa_tag_level_deflt * 20-debian_defaults:# $sa_tag_level_deflt = 2.0; # add spam info headers if at, or above that level 20-debian_defaults:$sa_tag_level_deflt = -999; # add spam info headers if at, or above that level

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