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• Effective Permissions displays incorrect information

  - by Konrads

  I have a security mystery :) Effective permissions tab shows that a few sampled users (IT ops) have any and all rights (all boxes are ticked). The permissions show that Local Administrators group has full access and some business users have too of which the sampled users are not members of. Local Administrators group has some AD IT Ops related groups of which the sampled users, again, appear not be members. The sampled users are not members of Domain Administrators either. I've tried tracing backwards (from permissions to user) and forwards (user to permission) and could not find anything. At this point, there are three options: I've missed something and they are members of some groups. There's another way of getting full permissions. Effective Permissions are horribly wrong. Is there a way to retrieve the decision logic of Effective Permissions? Any hints, tips, ideas? UPDATE: The winning answer is number 3 - Effective Permissions are horribly wrong. When comparing outputs as ran from the server logged on as admin and when running it as a regular user from remote computer show different results: All boxes (FULL) access and on server - None. Actually testing the access, of course, denies access.

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• Ubuntu 12.10, Unity, AMD 12.11 beta drivers, AMD APP SDK 2.7 and OpenCL detection of multiple gpus

  - by junkie

  I'm using Ubuntu 12.10, AMD 12.11 beta drivers, AMD APP SDK 2.7 and OpenCL. I have three amd radeon 7990s plugged in each of which are a dual 7970 so I have six gpus altogether. I plan to go up to eight in a few days. Windows couldn't use even 4 but linux works fine with 6 so far. The strange thing is that the six gpus are only detected by OpenCL in unity (the ubuntu default window manager). If I switch to e17, blackbox or fluxbox or anything else for that matter OpenCL only detects one. I'm using a simple OpenCL program to list all devices to check. I've also checked the output of aticonfig --list-adapters, fglxinfo and clinfo. The first two always show six in all window managers wheras clinfo shows 6 in unity but 1 gpu in all other WMs. I'm also using an X config generated by aticonfig --initial -f --adapter=all. I'm also only using one monitor. I've also checked using lsmod that the fglrx module is loaded in all WMs. So I have two questions. Why does OpenCL see six gpus only in unity? How can I enable six gpus on other lightweight WMs? Basically I'm getting at what determines how many gpus the OpenCL runtime sees? Thanks.

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• Mailgun Is Not Detecting My New MX Records

  - by Tyler Crompton

  When I issue a DiG command to verify my MX records, I get the following output: $ dig example.com MX ; <<>> DiG 9.9.5-3-Ubuntu <<>> example.com MX ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47700 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 5, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;example.com. IN MX ;; ANSWER SECTION: example.com. 85468 IN MX 10 mxa.mailgun.org. example.com. 85468 IN MX 10 mxb.mailgun.org. ;; REMAINDER OF OUTPUT REMOVED FOR BREVITY However, when I click "Check DNS Records Now" on Mailgun, it verifies the changes to the TXT and CNAME records but says that my MX records have not been changed. Type | Priority | Enter This Value | Current Value -----+----------+------------------+-------------------- MX | 10 | mxa.mailgun.org | 10 mail.example.com MX | 10 | mxb.mailgun.org | 10 mail.example.com I updated these records three to fours ago. I know it said to wait up to twenty-four to forty-eight hours. But I feel that if it detected the other DNS changes, then it should detect the MX record changes. Am I being impatient or is this a legitimate concern? What do you suggest I do? Note: I'd create a Mailgun tag for this; I feel that it'd be appropriate, but I don't have enough reputation to do so.

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• Nginx order of servers

  - by scrat

  I have 3 sites on my server. All are running on gunicorn and use unix sockets to communicate with nginx which routes requests. I got three records in nginx.conf like: server { listen 80; server_name site1.com; location / { proxy_pass http://unix:/tmp/site1.sock; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } } For site1, site2, site3. If they are ordered as config for site1 goes first, and then goes config for site2 and site3 everything works good. But when I change the order for example to site2, site1, site3, then site1 becomes routed to site2. What am I doing wrong? Full server nginx.conf before servers configs: user www-data; worker_processes 4; pid /var/run/nginx.pid; events { worker_connections 768; # multi_accept on; } http { ## # Basic Settings ## sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 65; types_hash_max_size 2048; include /etc/nginx/mime.types; default_type application/octet-stream; ## # Logging Settings ## access_log /var/log/nginx/access.log; error_log /var/log/nginx/error.log; ## # Gzip Settings ## 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;

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• ATI firepro will not detect a second DVI-D monitor

  - by John

  OK so weird issue here. I have previously been running 6 screens off of 3 of the older ATI firepro graphics cards but they had a problem with the heat sink getting too hot and warping the PCB resulting in total failure of the card, to replace my three dead cards I purchased a new-type ATI firepro with the newer heat sink design. I'm only using one at the moment to make sure they've fixed the problem before I waste more money on 2 more cards but this is where things start to get weird. The Firepro's only have one port on them, they connect to two monitors via a splitter cable going from the one port to two DVI connectors for the screens. When I plug two identical monitors in via their DVI inputs not matter what I do windows and Catalyst will only detect one screen. However if I use the VGA input on one of the screens with a VGA - DVI adaptor to plug it in to the card it works fine. This confuses me greatly. I'm currently using the ATI Firepro 2270 Graphics card with identical DELL U2311H screens. I can post the rest of the system spec as well if needed but I wouldn't have thought it would make much difference as it had no problem handling 6 screens before the graphics cards failed. Naturally both catalyst and ATI drivers are the most current version. ATI tech support has been absolutely zero help, they seemed to get stumped as soon as I verified that both screens were plugged in and connected properly. Anyone have any ideas?

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• Web page layout becomes broken when moved to live.

  - by Moses

  I want to preface my question with the fact that I'm only a front-end web developer, so please excuse my gross lack of knowledge in this area. My company has three webservers: one for development (IIS v5), one for staging (IIS v5), and one for live deployment (IIS v6). Staging is an exact mirror of live. When I compare the staging and live web pages side by side in Firefox (3.6), the pages are identical. However, when I compare the staging and live pages with Internet Explorer (8), there are major differences... In staging, the squares for bulleted lists are small. In live, the squares are big. In staging, the borders for tables are thick. In live, the borders are thin. In staging, an ASP generated image is the proper height. In live, the image is cropped at the bottom by about 10px. In the end, the layout on live became broken because of these tiny differences, but why? Does the fact that live is on IIS 6 and staging is on IIS 5 account for the small variance in display? And is there any way I can change this server side? Also, is there any reason why Firefox displays both correctly and IE displays both incorrectly?

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• Java: very slow tomcat and too big war file

  - by NaN

  I created some sort of RESTful API backend for a mobile app. It's written completely in Java using Jersey as Framework. At the moment no database is used, it's all in the memory, but this is no problem so far (it's only for prototyping purposes). I ordered the smallest package from digital ocean and installed tomcat7. All in all tomcat works, but I have three major problems: 1) It takes a long time until tomcat deploys the app: I deploy it per tomcat manager and it takes about 2 minutes unit the site works (excl. war upload time). 2) The war files are quite big (16MB): I don't know why they are so big. There are no database dependencies and most logic is written in plain java. Okay, we are using jersey, but 16MB are a lot for the logic of a small webservice. 3) I have to restart tomcat all 3 days or so. It looks like a memory leak or something similar. If the app runs for a few days the response time is quite high and the server seems to be frozen. It works again, if I restart tomcat per ssh. You can find my mvn pom file right here. Do you have some tips? Are there good tomcat alternatives?

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• Bad performance with Linux software RAID5 and LUKS encryption

  - by Philipp Wendler

  I have set up a Linux software RAID5 on three hard drives and want to encrypt it with cryptsetup/LUKS. My tests showed that the encryption leads to a massive performance decrease that I cannot explain. The RAID5 is able to write 187 MB/s [1] without encryption. With encryption on top of it, write speed is down to about 40 MB/s. The RAID has a chunk size of 512K and a write intent bitmap. I used -c aes-xts-plain -s 512 --align-payload=2048 as the parameters for cryptsetup luksFormat, so the payload should be aligned to 2048 blocks of 512 bytes (i.e., 1MB). cryptsetup luksDump shows a payload offset of 4096. So I think the alignment is correct and fits to the RAID chunk size. The CPU is not the bottleneck, as it has hardware support for AES (aesni_intel). If I write on another drive (an SSD with LVM) that is also encrypted, I do have a write speed of 150 MB/s. top shows that the CPU usage is indeed very low, only the RAID5 xor takes 14%. I also tried putting a filesystem (ext4) directly on the unencrypted RAID so see if the layering is problem. The filesystem decreases the performance a little bit as expected, but by far not that much (write speed varying, but 100 MB/s). Summary: Disks + RAID5: good Disks + RAID5 + ext4: good Disks + RAID5 + encryption: bad SSD + encryption + LVM + ext4: good The read performance is not affected by the encryption, it is 207 MB/s without and 205 MB/s with encryption (also showing that CPU power is not the problem). What can I do to improve the write performance of the encrypted RAID? [1] All speed measurements were done with several runs of dd if=/dev/zero of=DEV bs=100M count=100 (i.e., writing 10G in blocks of 100M). Edit: If this helps: I'm using Ubuntu 11.04 64bit with Linux 2.6.38. Edit2: The performance stays approximately the same if I pass a block size of 4KB, 1MB or 10MB to dd.

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• Downmix surround to Dolby Pro-Logic at the OS/driver level in Windows 7?

  - by davr

  First off, I'm talking about Dolby Pro-Logic, a really old tech for encoding 4 audio channels (L/R/C/SR) into two analog outputs, and then extracting them again. It was used in surround sound systems in the last century. I have a modern PC that can output 5.1 analog audio (Three outputs on the back carry six channels of audio). But I have a really old surround sound reciever that only has a two-channel, L/R input, which it extracts 4 channels of audio from, and outputs to 5.1 speakers. What I want is some way for the OS, Windows 7, to act as if I really had 5.1 audio channels available, so applications produce surround audio, but before outputting it out of the back of my PC, apply Dolby Pro-Logic matrix encoding so that it outputs over only two channels. These two channels would then get sent to my receiver via a RCA cable, which would decode it again and drive the surround speakers. Is anything like this possible? I'm pretty sure I could do it at an application / codec level, but I'm looking for something that I just have to set once.

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• How can I safely close this window and forever avoid seeing similar pop-ups from Mackeeper Zeobit's malware and spyware?

  - by Michael Prescott

  The attached image shows a window that just popped up and the only button available is the OK button. I could Force quit Safari, but I've got several sites open right now and don't want to try and find my place again. Besides, I've seen similar hacks in the past and I'd like to learn how to handle them in a way better than just a brute force-quit. I've never heard of MacKeeper or Zeobit, so I opened Firefox and did a few searches while Safari is obviously still stuck, waiting for me to click the sneaky OK button in the dialog window. Anyhow, at least the first few pages of most search results contain lots of blabbering from questionable witnesses about how MacKeeper saved them from some malware or spyware. However, any company that is hacking the browser to maliciously install their product is itself the criminal and not providing a true security application. So, there are three questions here: How can I close this window? Can I do something to Safari to avoid these hacks in the future? (Just curious) Is MacKeeper or Zeobit somehow loading the search results so that no information about their application being malware or spyware is listed (I can't be the only person in the world that is offended by their tactics, even though it appears I am)?

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• Nginx + WordPress + HHVM: Why isn't Batcache working? Would Varnish help even more?

  - by javipas

  I've heard great things about HHVM, so I've setup a copy of WordPress blog (on another domain) with Nginx (with the Pagespeed module) and HHVM. Right now the benefits are obvious: on the same config, load times are between two and three times faster. I'm trying to speed up things a little bit, and I've also installed Memcached and Batcache. I've installed the memcached package, copied object-cache.php (Pastebin) onto the root folder of the WordPress blog, and after that I've installed the Batcache plugin and copied the advanced-cache.php (Pastebin) file onto the wp-content folder. Also, I've included the line define('WP_CACHE', true); in the wp-config.php file. It seems it doesn't work, though. If I quickly reload the page several times Batcache should show the cached page, but it doesn't. It's easy to check that by reloading (Cmd+R on Chrome on OS X) the page several times and then viewing the page's code. Under the <head> section I should see some batcache stats, but they aren't there. I wonder if someone could give me some hint on this. On a side note, I don't know if I could add some other component in order to help the performance be even better. I'm thing about Varnish, but I'm not sure if it's just useless and it's just another way to the same I'm currently doing. Any other component there? (I'll test CDN for images, minifying js, etc and some other tricks as well, but I'm talking from the server perspective).

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• ssh Prompts For Password After Account Unlocked - Despite ssh key?

  - by user1011471

  Here's what happened: I set up ssh key so that user could ssh from A to B without a password. I got user's password wrong in some other context too many times, and user's account got locked out. (IT uses Active Directory here) IT unlocked the account. Concurrent to the unlocking, a script was running, calling something like ssh user@B some-health-check-command every 5 seconds or so -- which seemed to work fine before I caused user to get locked out in step 2. IT reports user reliably gets locked out a short time after each unlock attempt. I thought the ssh key would allow ssh user@B some-command as long as the account is not locked. But it behaves as if, when user gets unlocked, B suddenly asks for a password and since my command repeatedly runs without supplying a password, the account gets locked out after 5 attempts. Account cannot be accessed at this time. Please contact your system administrator. My questions are... Is that what's happening? Or: what's happening? More importantly: How can I reconfigure things such that my script doesn't cause problems? Can I accomplish what I want without having to install Expect? (I don't know if I have permission to do so) Other notes: Not using ssh-agent currently. The ssh command is running on our Jenkins master, a linux box. A and B are Mac OS X. user is managed in Active Directory and normally can sign into all three machines. Other than these things and the ssh key I set up, everything else has the default configuration as far as I know.

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• (Mac Intel) HP PS driver prints in B&W from Adobe Reader after installing Cannon PS driver

  - by John B

  I have a unique problem that leaves me at a loss as to where to start troubleshooting. We have three Macs we use for graphics, two of which are PowerPC and one which is Intel. They are set up to print to an HP 5500dn, but occasionally this printer gets tied up with a massive print job, so I installed the PS driver (iR-PSv1.81MacOSX) for the Cannon C3200 Printer/copier on each of the machines. Both of the PowerPC Macs installed without issue, but the Intel Mac exhibits strange behavior: I've confirmed that while the Cannon driver is installed (whether or not the Cannon is set up for printing in print settings), the HP 5500dn will print in color from Safari, but only prints in black and white from Adobe Reader. The Cannon printer itself has not exhibited any strange behavior As soon as the Cannon driver is uninstalled, the HP 5500dn prints in color from Adobe Reader again. We run a network of Windows PCs, and the 'Mac room' mostly takes care of itself, so we don't have any experienced Mac administrators onsite. The Cannon is capable of Appletalk, but the PS driver seemed easier to work with (and Appletalk is currently disable on the Cannon. I'm not against using the Appletalk compatible drivers, but I would rather use the PS driver if at all possible - I don't want to open up the proverbial can of worms. If someone has any clues or suggestions that would help troubleshoot this problem, I would be grateful. I've already done some googling, but due to the obscure nature of this problem, I haven't been very successful.

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• Roundcube "Server Error (OK!)": Lists no messages but can get messages according to the log file

  - by thonixx

  In my server setup there are three virtual machines. One windows machine, an Ubuntu Server 11.10 and a Debian Squeeze mailserver. On the Ubuntu system I have Roundcube installed and I want to connect to the virtual mail server. What's the problem After login into Roundcube it says "Server Error (OK!)" and lists no messages. More information On the Ubuntu server there is no error in any log file (even Roundcubes log files). In the imap log file there you can see Roundcube is able to fetch all imap messages (I can see them in the imap log file created by Roundcube). And on the side of the mail server there are no error messages too. The test connection at the end of the configuration of Roundcube works too, there is a "success" notification. Even the basic login at Roundcube login dialog works without any error message. Roundcube log file you can look here for the log file: http://fixee.org/paste/wxg36eh/ So does anyone know what's wrong with Roundcube?

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• Windows 7 - All Icons Missing, Explorer Progress Bar Never Finishes, Libraries Gone

  - by Alex

  since yesterday i've had three issues which all arose at the same time. windows 7 x64, i7 2.8ghz 12gb ddr3 1 - my libraries, favorites, drives are missing...basically the entire sidebar is gone. http://i.imgur.com/m8pRQ.png. yet when i open a dialog, my libraries and drives are back to normal ONLY for the dialog. i tried Restore Default Libraries. it works one time, but when i open libraries again i go back to the empty mess. restarting the computer temporarily fixes the problem. 2 - in the explorer window that's showing libraries, when i navigate to a certain folder i get an unending progress bar (the kind that turns the address bar green). yesterday when the problem started, i was saving a file to this folder. the program writing the file crashed during the write and i believe that's what caused the problem. i have sugarsync backing up that folder and when i restarted the computer sugarsync informed me that its database was corrupted, so i had to uninstall and reinstall the software. 3 - icons are missing. the Rebuild Icon Cache did not fix this. http://i.imgur.com/r9pgo.png restarting the computer temporarily fixes these problems, but when i open the directory with the initial write problem, everything stops working. edit: i should note that i did a chkdsk /f and it repaired problems. i also did the thing that verifies then restores windows files (can't remember the command now), which reported that everything was normal.

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• Running KVM/XEN/Hyper-V VMs from a RAM disk, is this possible? Practical?

  - by Ausmith1

  Currently I'm using ESX (v3 and v4) to test a scripted OS (Windows 2003) and application install DVD. The DVD ISO (8GB) is mounted on a 1Gbps NFS datastore and the VMDK's (20GB) are on an SSD mounted via NFS over a 10Gbps link. It still takes a lot longer than I'd really like for to run through a test iteration and I'm wondering if mounting the virtual disks and ISO on a RAM disk on the same server as the hypervisor is running on would be worth my while. I can dedicate a server to this VM and 32GB of RAM in the system should be adequate to do the trick I'd guess. (1GB hypervisor OS, 28GB RAM disk and 2GB for the VM is < the 32GB available to me) Since hosting a RAM disk within ESX does not seem possible I'm open to trying KVM/Xen/Hyper-V. KVM would probably be my first choice of these three. Anyone out there tried this? Bear in mind this is purely for a test run of the installer, the VM will be discarded as soon as the test is completed so I'm not worried about losing data from the remote possibility of a power failure.

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• How ZFS handles online replacement in a RAID-Z (theoretical)

  - by Kevin

  This is a somewhat theoretical question about ZFS and RAID-Z. I'll use a three disk single-parity array as an example for clarity, but the problem can be extended to any number of disks and any parity. Suppose we have disks A, B, and C in the pool, and that it is clean. Suppose now that we physically add disk D with the intention of replacing disk C, and that disk C is still functioning correctly and is only being replaced out of preventive maintenance. Some admins might just yank C and install D, which is a little more organized as devices need not change IDs - however this does leave the array degraded temporarily and so for this example suppose we install D without offlining or removing C. Solaris docs indicate that we can replace a disk without first offlining it, using a command such as: zpool replace pool C D This should cause a resilvering onto D. Let us say that resilvering proceeds "downwards" along a "cursor." (I don't know the actual terminology used in the internal implementation.) Suppose now that midways through the resilvering, disk A fails. In theory, this should be recoverable, as above the cursor B and D contain sufficient parity and below the cursor B and C contain sufficient parity. However, whether or not this is actually recoverable depnds upon internal design decisions in ZFS which I am not aware of (and which the manual doesn't say in certain terms). If ZFS continues to send writes to C below the cursor, then we are fine. If, however, ZFS internally treats C as though it were gone, resilvering D only from parity between A and B and only writing A and B below the cursor, then we're toast. Some experimenting could answer this question but I was hoping maybe someone on here already knows which way ZFS handles this situation. Thank you in advance for any insight!

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• CMD/ADB - Autorun script to search, copy, and paste a file from android system to flash drive

  - by Outride

  I've looked around and can't find anything that answers my question. This is my first question, so any tips or thoughts are welcome, as well as an answer :p As explained in title, i want to create a script that launches, finds a file on android phone, copies it, and pastes it to a flash drive. As of right now, it's a mix of multiple tutorials, trial and error, and I'm at a point of giving up. As of right now, I have a flash drive, loaded with three scripts. As follows: Bold = name of file file.bat @echo off :: variables /min SET odrive=%odrive:~0,2% set backupcmd=xcopy /s /c /d /e /h /i /r /y echo off %backupcmd% "C:\Users\Outride\Desktop\kikDatabase.db" "%drive%\all" @echo off cls invisible.vbs CreateObject("Wscript.Shell").Run """" & WScript.Arguments(0) & """", 0, False launch.bat wscript.exe \invisible.vbs file.bat So far, I had to use android commander, manually go through the directory, find /data/data/kik.android/databases and then copy kikDatabase.db to my desktop. Then run this scrip. Yes i'm trying to pull the database to copy all my email contacts. I use launch.bat, which then makes file.bat invisible due to the invisible.vbs script. What would i need to do now to have the file searched for and copied to the flashdrive? Thanks in advance, i'll be glad to answer any questions if theres any :p just remember that i'm not exactly a tech expert haha EDIT* Cleared junk of prior edits. New - I now have a .bat script to recognize what drive the usb is on, and launch py_cmd (adb shell) This is the current script. pull.bat @echo off :: variables SET odrive=%odrive:~0,2% set launching=start "%drive%\Minimal ADB and Fastboot\py_cmd" echo off %launching% so how could I make it for the .bat or a new script, to type the following "adb pull /data/data/kik.android/databases/ %drive%\All\Database" into the adb terminal? please help! I've been racking my brain over this all night :3

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• Migrate Maildir between courier and dovecot servers

  - by DeaconDesperado

  I have several tarballs that make up all the previous emails for two or three accounts on a mail server. This machine we be shut down within a few weeks and so I need to migrate all the previously subscribed IMAP folders to the new server. The old machine ran Dovecot with exim and delivered all mail to a virtual user folder on the server in maildir format. The new machine uses courier and postfix, also configured to deliver through maildir. The new server is already setup and all clients are successfully logging in, the problem is migrating their old conversations. I've tried moving the old message files directly and deleting the imap db that records which messages have already been fetched, but nothing has been successful. The outlook clients present an error for every message saying that the "message can no longer be located on the server." Keeping the files chronologically sorted is not an object, I just need to migrate the old conversations over. Is there a way to do this in a batch operation that will allow the clients to login to the new server and treat these old messages as though they were new? What is the protocol for this kind of migration?

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• Error during SSL installation cPanel/WHM

  - by baswoni

  I have a dedicated server and I am using the install wizard via WHM to install an SSL certificate. I have the following keys: Certificate key RSA private key CA certificate I paste these three elements into the wizard along with the domain, IP address and username but I get this error: SSL install aborted due to error: Unable to save certificate key. Certificate verification passed Have I missed a step? I have given it another go to make sure I am copying and pasting the info correctly and I am now getting the following error: SSL install aborted due to error: Sorry, you must have a dedicated ip to use this feature for the user: username! If you are intending to install a shared certificate you must use the username "nobody" for security and bandwidth reporting reasons. Even though I am using a dedicated IP address, I am getting this problem. I thought I would also add that this SSL certificate has been installed on a shared hosting environment with my previous hostig provider. The account with them is still active, however the domain and its contents now reside on the dedicated server - could this cause problems?

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• Spreadsheet application that can handle big data OS X

  - by Peter

  I've been working with Excel for quite a while for some statistical analysis that I do regularly. The size of the data that I'm working with has gotten much larger as of late, however. The layout of the databases in question is quite simple, usually just three rows which includes a UNIX timestamp, and EST value, a proprietary numeric value and finally an average of the rows that have a timestamp +/- 1000 that row's timestamp (little AVERAGEIFS() formula). That formula and the EST conversion are the only formulas in the sheet. I'm beginning to work with files with 500,000+ rows. Running the average formula down the entire row takes forever. The end result is the production of print-worthy graphs. I'm looking for either a UNIX CL utility or separate spreadsheet/database application that can handle this amount of data without melting my CPU or making me wait an hour. Is there anything out there? TL;DR: Simple excel sheet with over half a million rows is getting too slow to work with. OS X alternatives?

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• Why do disk images hosted on a read-only HFS+ partition behave differently?

  - by deceze

  I have come across the following phenomenon and would like to know how leaky Windows' file system abstraction is or if there's something else involved. I partitioned the hard disk of my MacBook Pro and installed Windows 7 (64 bit). The Boot Camp driver package includes file system drivers that enable Windows to access the Mac OS HFS+ partition. It's read-only access, but it works. Now, I have some disk images of stuff I usually install, so I grabbed a copy of Daemon Tools to mount them. When I mount an image saved on the HFS+ partition, about two out of three installers on these disks (usually InstallShield) crash with all sorts of weird errors. Most are just gibberish that lead to all sorts of non-solutions on Google, one was "This application is not the right type for your computer, check if you need 32 or 64 bit versions." When moving the image files to another Windows 7 computer on the network and mounting them from the network share, they work fine. My question now is, why do applications behave differently depending on whether the read-only image file, which should be abstracted away through the read-only virtual Daemon Tools drive, is located on a read-only HFS+ partition or on a Windows network share? And I'll just roll this into the question as well since I was wondering: Does the file system of a network share matter? Does the client system need to understand the file system of the share host or is that abstracted away in SMB?

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• Using <VirtualHost> over .htaccess for mod_rewrite

  - by DarkWolffe

  I have a LAMP stack installed on Ubuntu 12.10 with three sites created under /etc/apache2/sites-available, all of which are working. My problem lies in wanting to use those files over .htaccess for appending the .php file extension from the URL. My file currently stands as such: # The VGC <VirtualHost *:80> ServerAdmin [email protected] ServerName thevgc.net ServerAlias www.thevgc.net DocumentRoot /var/www/www <Directory /> Options FollowSymLinks AllowOverride All </Directory> <Directory /var/www/www/> Options Indexes +FollowSymLinks +MultiViews Includes RewriteEngine On RewriteBase / RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ $1.php [L,QSA] AddType application/x-httpd-php .php AllowOverride All Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> I'm almost certain I'm doing something wrong. All I know is that my .htaccess files refused to append the extension, or rather find the file that has the same name and load that file, so I wanted to go about this method. Any suggestions? Here is an example page from my site.

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• csvde doesn't import users

  - by The Eighth Ero

  I have a small problem as I'm a server manager beginner, I installed a Domain Controller on my Windows Server 2008, and I created three OUs, now I'm trying to add users to each OU via csvde command, but I get as a result of the operation, without mentioning any errors: > C:\csvde>csvde -i -f List.csv > Connecting to "(null)" > Logging in as current user using SSPI Importing directory from file > "List.csv" Loading entries. > 0 entries modified successfully. Below is the csv file I'm using to add 2 users to "Offshoring1" OU, the domain name is "iado.lan". DN objectClass sAMAccountName sn givenName userPrincipalNAme cn=BB NN,ou=Offshoring1,dc=iado,dc=lan user BB NN BB [email protected] cn=II YY,ou=Offshoring1,dc=iado,dc=lan user II YY II [email protected] and this the csv data as generated by Word 2011 on my mac : DN;objectClass;sAMAccountName;sn;givenName;userPrincipalNAme cn=BB NN,ou=Offshoring1,dc=iado,dc=lan;user;BB;NN;BB;[email protected] cn=II YY,ou=Offshoring1,dc=iado,dc=lan;user;II;YY;II;[email protected] I do use -k option to force import but still no success.

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• Is there a better way to do bonded vlan tagged interfaces with XEN

  - by AJ01

  We have a number of XEN servers all running CentOS or RHEL. The VM's that they run are all required to be on their own VLAN for no other reason than the customer expects them to be. Long story short however, I can't change this right now. We are also required to have bonding enabled on the interfaces. So to accommodat this we enslave eth1 and eth2 to bond0. We then create a seperate interface called bond0.VLANID where VLANID corresponds to the correct vlan; eg ifcfg-bond0.204 DEVICE=bond0.204 BOOTPROTO=static ONBOOT=yes VLAN=yes BRIDGE=xenvlan204 Bridge to XEN As you will see, we eventually have to bridge this out to XEN, and we do this by adding another interface called xenvlan204 (in this instance) which contains; ifcfg-xenvlan204 DEVICE=xenvlan204 BOOTPROTO=none ONBOOT=yes TYPE=bridge XEN Vm Config Finally in our XEN config for each VM, we add vif = [ "bridge=xenvlan204" ] This then allows the vm host to access that particular vlan The Problem We've noticed a few problems with this setup. One being that we currently create the interfaces manually. Which means if we add more vlan enabled interfaces and bridges we usually have to restart xend which is something I'm not so hot about. Also lower level staff have their heads melted by the number of interfaces and the risk of a mistake occurring is high. Secondly, it can take sometime for a host to come up if it has a number of vlan taged interfaces. Thirdly, its just not scaling well on the management aspects The Question Is there a better more flexible way to do this (in particular with Xen that ships with centos 5.3, 5.4 and 5.5 as we have to support all three) that leverages either scripting or other solutions to allow an arbitrary amount of interfaces to be created when a vm is instanced. Your advise and expertise is more that welcomed.

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