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• Calculating RAM Performance? Example: DDR3-2133 CL9-11-10-28 1.65V vs DDR3-1600 CL10-10-10-30 1.5V

  - by user1131467

  How do you calculate the relative performance of PC RAM? For example, what is the relative performance of the following: G.Skill Ripjaws Z 8 x 4GB Kit, DDR3-2133, [email protected] G.Skill Ripjaws Z 4 x 8GB Kit, DDR3-1600, [email protected] If it's relevant, when they are used in a top of the line ASUS Rampage IV Extreme motherboard and Intel i7 3960X? By performance, I mean relative: read latency write latency read bandwidth write bandwidth Please include working. (I mean how did you arrive at the figures based on timing and DDR3-speed)

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• Setting up multiple cores for apache solr for Ubuntu 12.04 and Drupal 7

  - by chrisjlee

  I'm setting up solr locally for my development purposes and integration with Drupal 7. I'm not very familiar with tomcat. My background has primarily been LAMP setups. So I went and installed the package provided by ubuntu for apache solr following this guide. sudo apt-get install tomcat6 tomcat6-admin tomcat6-common tomcat6-user tomcat6-docs tomcat6-examples sudo apt-get install solr-tomcat I've got that working. The apt-get package manager does a great job and allows me to setup solr but with one core. What steps need to be taken to enable multi core setup for apache solr? And below is my solr.xml file: sudo nano /var/lib/tomcat6/conf/Catalina/localhost/solr.xml <!-- Context configuration file for the Solr Web App --> <Context path="/solr" docBase="/usr/share/solr" debug="0" privileged="true" allowLinking="true" crossContext="true"> <!-- make symlinks work in Tomcat --> <Resources className="org.apache.naming.resources.FileDirContext" allowLinking="true" /> <Environment name="solr/home" type="java.lang.String" value="/usr/share/solr" override="true" /> </Context>

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• Which approach is the most maintainable?

  - by 2rs2ts

  When creating a product which will inherently suffer from regression due to OS updates, which of these is the preferable approach when trying to reduce maintenance cost and the likelihood of needing refactoring, when considering the task of interpreting system state and settings for a lay user? Delegate the responsibility of interpreting the results of inspecting the system to the modules which perform these tasks, or, Separate the concerns of interpretation and inspection into two modules? The first obviously creates a blob in which a lot of code would be verbose, redundant, and hard to grok; the second creates a strong coupling in which the interpretation module essentially has to know what it expects from inspection routines and will have to adapt to changes to the OS just as much as the inspection will. I would normally choose the second option for the separation of concerns, foreseeing the possibility that inspection routines could be re-used, but a developer updating the product to deal with a new OS feature or something would have to not only write an inspection routine but also write an interpretation routine and link the two correctly - and it gets worse for a developer who has to change which inspection routines are used to get a certain system setting, or worse yet, has to fix an inspection routine which broke after an OS patch. I wonder, is it better to have to patch one package a lot or two packages, each somewhat less so?

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• how to create java zip archives with a max file size limit [closed]

  - by Marci Casvan

  I need to write an algorithm in java (for an android app) to read a folder containing more folders and each of those containing images and audio files so the structure is this: mainDir/subfolders/myFile1.jpg It must be in java, something like perl script is not an option. It would preferably be for the compressed archive in order to squeeze as many files as possible before mailing the zip. Just a normal zip (no jar). My problem is that I need to limit the size of the archive to 16mb and at runtime, create as many archives as needed to contain all my files from my main mainDir folder. I tried several examples from the net, I read the java documentation, but I can't manage to understand and put it all together the way I need it. Has someone done this before or has a link or an example for me? I resolved the reading of the files with a recursive method but I can't write the logic for the zip creation I'm open for suggestions or better, a working example. EDIT: FileNotFoundException (no such file or directory) this was my initial post at Stack Overflow. I've got an answer to it, but I can't set the size of the ZipEntry and the logic doesn't work and also when extracting the my files from the zip I get the compression method not supported error.

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• Kubuntu 11.10 very slow during file I/O

  - by dko

  After updating to Kubuntu 11.10, my file I/O performance has slowly just gotten worse and worse. It is to the point where I'm getting 1 MB/s write/read speeds to the drive. If I download something, the whole machine becomes unresponsive for at times up to 30 seconds. This usually causes a timeout in the download and the download then stops. Even extracting archive files, while extracting the computer is just unusable on top of the terrible read/write speeds. It isn't the drive as I have Windows installed as well and when I boot to it I have no issues with the drive. I did not have this issue using Kubuntu 11.04 and am thinking of downgrading. However, I'd much rather help out the Ubuntu community by working through these issues. I'm starting to lean towards the new Linux Kernel is just not working well with file handles. During file I/O my system usage does pick up, but it is not 100% CPU usage. My system is as follows. Samsung 2 TB hard disk drive AMD Phenom II x6 1055 4 GB RAM (only one in use according to system monitor) ATI 5850 HD

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• What have you learned from the bugs you helped discover and fix?

  - by Ethel Evans

  I liked the core of this question, and wanted to re-ask it in a way that made it less about 'fun' and more about 'What do these past mistakes tell us about how we can write and test software better?' As an SDET, I'm always looking for anecdotes about new and interesting ways that programs can fail. I've learned a lot from these tales in the past, and would like to get that from the intelligent people in this community as well. I'd be interested in hearing what the issue was, how it was caught, if you think there was anything that could have reasonably done to catch it earlier or to avoid the same issue on later projects, and any other interesting lessons you took away from this bug. Please only write about bugs you personally were involved with, ideally on a project you worked on (e.g., no "10 years before I was born, this happened and it was FUNNY!" answers). Please vote up answers that are thought-provoking or could change how you develop or test in some way, so this isn't just 'social fun'. Try to avoid voting up something just because it was funny.

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• sed comand - remove virus from wordpress [duplicate]

  - by EliaszKubala

  This question already has an answer here: How do I deal with a compromised server? 12 answers I have malicious code in every php file. This malicius code is auto paste at the beginning of file. I want to remove this with UNIX command from console. This is malicious code: <?php $guobywgpku = '..... u=$bhpegpvvmc-1; ?> I write this RegExp, "/<\?php \$guobywgpku.*\?>/m" and this RegExp work. I tested it here. The problem is, write command which remove this malicious code from every php file on the sever. Please Help me. Now i have something like this. sed "/<\?php \$guobywgpku.*\?>/m" index.php

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• yum install gcc fails with invalid linux.dropbox.com/fedora directory

  - by john

  I am relatively new to Linux administration. I have installed Centos 6.5 (under VirtualBox on a Win7pro system). When I try to install gcc to the system using yum, I get the following results: [root@localhost etc]# yum clean all Loaded plugins: fastestmirror, refresh-packagekit, security Cleaning repos: Dropbox base extras updates Cleaning up Everything Cleaning up list of fastest mirrors [root@localhost etc]# yum install gcc Loaded plugins: fastestmirror, refresh-packagekit, security Determining fastest mirrors * base: mirrors.tummy.com * extras: mirrors.cat.pdx.edu * updates: centos.mirror.freedomvoice.com http://linux.dropbox.com/fedora/6/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 Not Found" Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: Dropbox. Please verify its path and try again It appears that the linux.dropbox.com/fedora/6 subdirectory does not exist. Does anyone have any ints/answers for me. Thanks.

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• iis php internal server error

  - by user1633206

  I developed a website, using php/mysql running at IIS Server as CGI Server API. Suddenly it gives me error 500 after two weeks. It has lot of scripts but index.php home is working. But other script that has header redirection What's wrong with my scripts. livehttp addon of firefox says.. GET /allplans.php?lang=ar&cat=1 HTTP/1.1 Host: www.myhost.com... [edited] User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip, deflate Connection: keep-alive Cache-Control: max-age=0 HTTP/1.1 500 Internal Server Error Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Mon, 03 Sep 2012 08:09:13 GMT Content-Length: 1208 Connection: Keep-Alive

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• My Only Gripe With Programming

  - by David Espejo

  Is that im having trouble practicing problems. Even if I decide to practice the problems from my C++ book, they dont give any idea of the way the solution(program) should look like, so that I may compare to see if my program is similar in anyway. My book gives me to many generic "Write a program to do "this" " projects without really showing a concrete example of what "this" really is. In other words How Do I Know That I did "that". One problem in my book said to write a program that calculates the sales tax on a given item????? First of all slase tax differs on state(whats the state,) whats the item(a house, a dog,) How can I check this to see if im right. Programming books dont have answer keys! I know that there is no ABSOLUTE answer, thats just silly, programs can be written in many ways, but a sample of what one would look like based of the difficulty of the problem would really help! Is there a solution to this, maby a book that has worked out examples for the problems they give , or online sources that do something similar.(is there such thing as a programming book with an answer key?)

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• vsftpd, virtual users and permissions. Avoid using chmod 777?

  - by Jakobud

  I am running vsftpd with Virtual Users (managed through a MySQL db). Each users home/default directory is owned by vsftpd:vsftpd. I need to give a user read/write permissions to some website files, owned by apache:apache so they can make some changes. I did a bind mount for the web directory to a directory in the ftp user's home/default directory. When logging in, the user is not able to write to the web folder, unless I set files to 777. Is it possible to set this up with making the directory and it's files 777? The web directory needs to be apache:apache in order for apache to work with it.

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• Environment variable for volume names in Windows?

  - by Shinrai

  I'm trying to write a batch file that will look at the volume label of the current drive and report if it's not equivalent to a certain string. Is there a default variable in the shell for this? Can I define one? Am I SOL and I'll actually have to do some (shudder) programming? EDIT: If this is possible in PowerShell that would work fine. (For the curious, we ship our machines with software cloning as a rapid bootable backup solution since most of our customers are daytraders and aren't interested in RAID due to urgency of getting-the-hell-back-to-work-right-away if there's a software corruption problem, and we want to make it immediately obvious if they're booting to the backup drive unintentionally, like say the primary failed entirely. The hope was just to write a simple batch file that would autostart on boot and throw a warning in the event of a problem.)

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• Help needed setting up nginx to serve static files.

  - by Catalina

  Hi Guys, I'm trying to setup nginx to serve static files. Basically all I need is to have http://mydomain.com/site_media/ point to /var/django/myproject/site_media. I have tried so many configurations and when I test it I always get a 404 error for static files. Can anyone please tell me what I'm doing wrong or how I should be setting this up? This is my current nginx configuration file. user www-data; worker_processes 1; #error_log /usr/local/nginx/logs/error.log; #pid /usr/local/nginx/logs/nginx.pid; events { worker_connections 1024; use epoll; } http { # Enumerate all the Tornado servers here upstream frontends { server 127.0.0.1:8000; server 127.0.0.1:8001; server 127.0.0.1:8002; server 127.0.0.1:8003; } include mime.types; default_type application/octet-stream; #access_log /usr/local/nginx/logs/access.log; keepalive_timeout 65; proxy_read_timeout 200; sendfile on; tcp_nopush on; tcp_nodelay on; gzip on; gzip_min_length 1000; gzip_proxied any; gzip_types text/plain text/html text/css text/xml application/x-javascript application/xml application/atom+xml text/javascript; proxy_next_upstream error; server { listen 80; # Allow file uploads client_max_body_size 50M; location ^~ /site_media/ { root /var/django/myproject/site_media; if ($query_string) { expires max; } } location = /favicon.ico { rewrite (.*) /site_media/favicon.ico; } location = /robots.txt { rewrite (.*) /site_media/robots.txt; } location / { proxy_pass_header Server; proxy_set_header Host $http_host; proxy_redirect off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Scheme $scheme; proxy_pass http://frontends; } } #include /usr/local/nginx/sites-enabled/*; } Thanks, Cata

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• Why is domU faster than dom0 on IO?

  - by Paco

  I have installed debian 7 on a physical machine. This is the configuration of the machine: 3 hard drives using RAID 5 Strip element size: 1M Read policy: Adaptive read ahead Write policy: Write Through /boot 200 MB ext2 / 15 GB ext3 SWAP 10GB LVM rest (~500GB) emphasized text I installed postgresql, created a big database (over 1GB). I have an SQL request that takes a lot of time to run (a SELECT statement, so it only reads data from the database). This request takes approximately 5.5 seconds to run. Then, I installed XEN, created a domU, with another debian distro. On this OS, I also installed postgresql, with the same database. The same SQL request takes only 2.5 seconds to run. I checked the kernel on both dom0 and domU. uname-a returns "Linux debian 3.2.0-4-amd64 #1 SMP Debian 3.2.41-2+deb7u2 x86_64 GNU/Linux" on both systems. I checked the kernel parameters, which are approximately the same. For those that are relevant, I changed their values to make them match on both systems using sysctl. I saw no changes (the requests still take the same amount of time). After this, I checked the file systems. I used ext3 on domU. Still no changes. I installed hdparm, and ran hdparm -Tt on both systems, on all my partitions on both systems, and I get similar results. Now, I am stuck, I don't know what is different, and what could be the cause of such a big difference. Additional Info: Debian runs on a Dell server PowerEdge 2950 postgresql: 9.1.9 (both dom0 and domU) xen-linux-system: 3.2.0 xen-hypervisor: 4.1 Thanks EDIT: As Krzysztof Ksiezyk suggested, it might be due to some file caching system. I ran the dd command to test both the read and write speed. Here is domU: root@test1:~# dd if=/dev/zero of=/root/dd count=5MB bs=1MB ^C2020+0 records in 2020+0 records out 2020000000 bytes (2.0 GB) copied, 18.8289 s, 107 MB/s root@test1:~# dd if=/root/dd of=/dev/null count=5MB bs=1MB 2020+0 records in 2020+0 records out 2020000000 bytes (2.0 GB) copied, 15.0549 s, 134 MB/s And here is dom0: root@debian:~# dd if=/dev/zero of=/root/dd count=5MB bs=1MB ^C1693+0 records in 1693+0 records out 1693000000 bytes (1.7 GB) copied, 8.87281 s, 191 MB/s root@debian:~# dd if=/root/dd of=/dev/null count=5MB bs=1MB 1693+0 records in 1693+0 records out 1693000000 bytes (1.7 GB) copied, 0.501509 s, 3.4 GB/s What can be the cause of this caching system? And how can we "fix" it? Can we apply it to dom0? EDIT 2: I switched my virtual disk type. To do so I followed this article. I did a dd if=/dev/vg0/test1-disk of=/mnt/test1-disk.img bs=16M Then in /etc/xen/test1.cfg, I changed the disk parameter to use file: instead of phy: it should have removed the file caching, but I still get the same numbers (domU being much faster for Postgres)

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• Deployment/provisioning tool for commercial applications (not developed in-house)

  - by mfinni

  I help manage a few hosted commercial applications, and we have a lot of manual processes involved when doing new customer-instance deployments into the shared (multitenant) environment. Allow me to describe the most relevant features, and then we can talk about the tools. We have an application on AIX, that requires dozens of changes to config files (some plain text, some XML) as well as a good number of commands to be run on multiple servers - some to start the new instance, some to restart our shared authentication and reporting engines, etc. The config changes follow templates, of course. The servers in question will also depend on the initial conditions specified by the implementer/deployer - we may choose to deploy a given customer to our servers in Europe, or one set of servers may be active-active whereas a different set of servers is active-passive - in short, there's a lot of complications. We have another application that run on IIS 6 and SQL. The DBAs don't want any automation of the SQL components and that's fine with me, but automating the IIS bit would be great. For a new customer instance, we make a filesystem copy of a template Virtual Directory target named after the new customer, make a new AppPool to match, edit a VirDir template .xml file to replace the filepaths and AppPool names with the new ones, and then make a new VirDir from the modified template XML to point to the new filesystem folder and app pool. For the first case, something like ControlTier or Chef might be good. For the second, the new(ish) Web Deploy from MS would probably do a good job. Has anyone used these tools or others to do something similar for applications? More of a nice-to-have, not a fixed requirement - Has anyone used anything that works on both platforms? I'm looking for something free, because the official word is that within a year, we will have whatever HP has renamed the OpsWare suite, which should be able to do stuff like this. Edit - based on someone's suggestion, looking at CFengine for the AIX application, it doesn't seem to address my pain. The problem isn't keeping a given config synced across dozens of servers, we have rsync for that. The problem is that onboarding a new customer instance touches dozens of files, putting pieces of the same or similar information into them - some are new stanzas in existing files, some are new files, and some are new directories. This is a several-hours-long process that is also error-prone because it's mostly done by hand. I guess I'm looking for config-file generation and management. I have built a small Perl script to do something similar for a much smaller case - it binds a CSV file into variables, and then does a copy-and-search-and-replace from a set of template config files. I could probably do the same here.

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• How To Create An FTP User That Has Permission To EVERYTHING

  - by Serg

  I've spent the last two hours trying to create an FTP user so I can transfer some files over to my Wordpress blog folder. /var/www/sergiotapia.me I'm using vsftpd and Ubuntu 12.04 for my FTP server and I've read tons of documentation, none of which seem to work. I still cannot log in with the FTP user, let alone test if I even have the read/write file permissions. Can a Linux guru here, help me out with a small step by step? I'm comfortable with the terminal and nano, so that's not an issue - I'll SSH into my box. Just tell me what to do and what commands to run. Specifically, this user needs to have read and write access to the /var/ folder and anything within it. I want to have 1 user that can do whatever the heck he wants on my Ubuntu 12.04 VPS machine.

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• Should I use OpenGL or DX11 for my game?

  - by Sundareswaran Senthilvel

  I'm planning to write a game from scratch (a BIG Game, for commercial purpose). I'm aware that there are certain compute libraries like OpenCL, AMD APP SDK, C++ AMP as well as DirectCompute - both from MS (NOT interested in CUDA) are available in the market. I'm planning to write the game from the scratch, which includes the following engines... Physics Engine AI Engine Main Game Engine (... and if anything is missed). I'm aware that, there are some free physics engine libraries in the market. Not sure about free AI engine libraries. I'm bit confused in choosing between the OpenCL, AMD APP SDK, and C++ AMP libraries (as already mentioned i'm NOT interested in CUDA). I want my game to be published in Windows/Android/Mac OSX. It means it should be a cross-platform game. I will be having "one source code" that i'll compile for various platforms like Windows/Android/Mac OSX, and any others if i missed. Note: Since I'm NOT a Java guy, kindly do NOT suggest me the Java Language. For Graphics language should i use OpenGL or DirectX 11? I have heard that OpenGL runs on a single core, and not sure of DirectX 11. Between OpenGL and DirectX which one should i follow? or else, are there any other graphics language that i need to start with? I want to make use of the parallelism in GPU as well as CPU.

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• How can I set deadline as the I/O scheduler for USB Flash devices by using udev rules?

  - by ????

  I have set CFQ as the default I/O scheduler. I often get bad performance when I write data into a Flash device. This is resolved if I use deadline as the I/O scheduler for USB Flash devices. I can't always change the scheduler manually, right? I think writing udev rules is a good idea. Can someone please write rules for me? I want: When I plug in a USB device, detect the type of the device. If it is a portable USB hard disk, do nothing (I think if a device has more than one partitions, it always a portable hard disk. If it is a USB Flash device, set deadline as it's scheduler.

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• Places to store basic data

  - by Ella

  I am using PHP. I'm building a fully modular CMS, which is destined for the public. Some people might view this as a framework, but I intend to write a set of extensions for it, extensions that will make it a CMS :P Because it's completely modular I have a problem figuring out how to load extensions. Practically I need to get the list of active extensions, so I can load them inside my base class. I load them by reading some file headers, which contain a "dependency" field. That field decides the order in which I have to instantiate the objects. The problem is that when the CMS starts I have no database interface, because that's an extension too, so I can't store the active extensions list in the database :) You might ask how are extensions activated in the first place. Well - in the administration interface, which is an extension as well (obviously on first install of the CMS there will be some extensions active by default). Could writing that list inside a text file be a solution? The problem is that a lot of hosts are not very nice with scripts when they write files. And since this CMS is public I might have a problem here?

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• Nginx + PHP-FPM on Centos 6.5 gives me 502 Bad Gateway (fpm error: unable to read what child say: Bad file descriptor)

  - by Latheesan Kanes

  I am setting up a standard LEMP stack. My current setup is giving me the following error: 502 Bad Gateway This is what is currently installed on my server: Here's the configurations I've created/updated so far, can some one take a look at the following and see where the error might be? I've already checked my logs, there's nothing in there (http://i.imgur.com/iRq3ksb.png). And I saw the following in /var/log/php-fpm/error.log file. sidenote: both the nginx and php-fpm has been configured to run under a local account called www-data and the following folders exits on the server nginx.conf global nginx configuration user www-data; worker_processes 6; worker_rlimit_nofile 100000; error_log /var/log/nginx/error.log crit; pid /var/run/nginx.pid; events { worker_connections 2048; use epoll; multi_accept on; } http { include /etc/nginx/mime.types; default_type application/octet-stream; # cache informations about FDs, frequently accessed files can boost performance open_file_cache max=200000 inactive=20s; open_file_cache_valid 30s; open_file_cache_min_uses 2; open_file_cache_errors on; # to boost IO on HDD we can disable access logs access_log off; # copies data between one FD and other from within the kernel # faster then read() + write() sendfile on; # send headers in one peace, its better then sending them one by one tcp_nopush on; # don't buffer data sent, good for small data bursts in real time tcp_nodelay on; # server will close connection after this time keepalive_timeout 60; # number of requests client can make over keep-alive -- for testing keepalive_requests 100000; # allow the server to close connection on non responding client, this will free up memory reset_timedout_connection on; # request timed out -- default 60 client_body_timeout 60; # if client stop responding, free up memory -- default 60 send_timeout 60; # reduce the data that needs to be sent over network gzip on; gzip_min_length 10240; gzip_proxied expired no-cache no-store private auth; gzip_types text/plain text/css text/xml text/javascript application/x-javascript application/xml; gzip_disable "MSIE [1-6]\."; # Load vHosts include /etc/nginx/conf.d/*.conf; } conf.d/www.domain.com.conf my vhost entry ## Nginx php-fpm Upstream upstream wwwdomaincom { server unix:/var/run/php-fcgi-www-data.sock; } ## Global Config client_max_body_size 10M; server_names_hash_bucket_size 64; ## Web Server Config server { ## Server Info listen 80; server_name domain.com *.domain.com; root /home/www-data/public_html; index index.html index.php; ## Error log error_log /home/www-data/logs/nginx-errors.log; ## DocumentRoot setup location / { try_files $uri $uri/ @handler; expires 30d; } ## These locations would be hidden by .htaccess normally #location /app/ { deny all; } ## Disable .htaccess and other hidden files location /. { return 404; } ## Magento uses a common front handler location @handler { rewrite / /index.php; } ## Forward paths like /js/index.php/x.js to relevant handler location ~ .php/ { rewrite ^(.*.php)/ $1 last; } ## Execute PHP scripts location ~ \.php$ { try_files $uri =404; expires off; fastcgi_read_timeout 900; fastcgi_pass wwwdomaincom; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } ## GZip Compression gzip on; gzip_comp_level 8; gzip_min_length 1000; gzip_proxied any; gzip_types text/plain application/xml text/css text/js application/x-javascript; } /etc/php-fpm.d/www-data.conf my php-fpm pool config ## Nginx php-fpm Upstream upstream wwwdomaincom { server unix:/var/run/php-fcgi-www-data.sock; } ## Global Config client_max_body_size 10M; server_names_hash_bucket_size 64; ## Web Server Config server { ## Server Info listen 80; server_name domain.com *.domain.com; root /home/www-data/public_html; index index.html index.php; ## Error log error_log /home/www-data/logs/nginx-errors.log; ## DocumentRoot setup location / { try_files $uri $uri/ @handler; expires 30d; } ## These locations would be hidden by .htaccess normally #location /app/ { deny all; } ## Disable .htaccess and other hidden files location /. { return 404; } ## Magento uses a common front handler location @handler { rewrite / /index.php; } ## Forward paths like /js/index.php/x.js to relevant handler location ~ .php/ { rewrite ^(.*.php)/ $1 last; } ## Execute PHP scripts location ~ \.php$ { try_files $uri =404; expires off; fastcgi_read_timeout 900; fastcgi_pass wwwdomaincom; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } ## GZip Compression gzip on; gzip_comp_level 8; gzip_min_length 1000; gzip_proxied any; gzip_types text/plain application/xml text/css text/js application/x-javascript; } I've got a file in /home/www-data/public_html/index.php with the code <?php phpinfo(); ?> (file uploaded as user www-data).

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• Htaccess strange behaviour with Nginx

  - by Termos

  I have a site running on Nginx (v1.0.14) serving as reverse proxy which proxies requests to Apache (v2.2.19). So Nginx runs on port 80, Apache is on 8080. Overall site works fine except that i cannot block access to certain directories with .htaccess file. For example i have 'my-protected-directory' on 'www.site.com' Inside it i have htaccess with following code: <Files *> order deny,allow deny from all allow from 1.2.3.4 <--- my ip address here </Files> When i try to access this page with my ip (1.2.3.4) i get 404 error which is not what i expect: http://www.site.com/my-protected-directory However everything works as expected when this page is served directly by Apache. I can see this page, everyone else can't. http://www.site.com:8080/my-protected-directory Update. Nginx config (7.1.3.7 is site ip.): user apache; worker_processes 4; error_log logs/error.log; pid logs/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; sendfile on; keepalive_timeout 65; gzip on; gzip_min_length 1024; gzip_http_version 1.1; gzip_proxied any; gzip_comp_level 5; gzip_types text/plain text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript image/x-icon; server { listen 80; server_name www.site.com site.com 7.1.3.7; access_log logs/host.access.log main; # serve static files location ~* ^.+.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|doc|xls|exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|js)$ { root /var/www/vhosts/www.site.com/httpdocs; proxy_set_header Range ""; expires 30d; } # pass requests for dynamic content to Apache location / { proxy_redirect off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header Host $http_host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Range ""; proxy_pass http://7.1.3.7:8080; } } Could please anyone tell me what is wrong and how this can be fixed ?

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• VIM: How do you get the last ex command you used?

  - by TrevorBoydSmith

  I find that sometimes I write a really long ex mode command that do lots of stuff. They are sort of "mini-scripts" that I write in the text editor then I start ex mode and copy them into the ex line and execute. But then I always end up editing in the ex mode and then I find it difficult to get the changes i did in ex mode back to my text editing session. Using the keyboard, how do you copy the last ex command you used and paste it into your text editor? (Note: This is sort of the opposite of this question "how do I copy/paste in vim ex mode" where the user asks "how do you copy from the text editor and paste INTO the ex mode?". My question is the opposite because I wish to copy from the ex mode and paste into my text editor.)

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• linux shell, keep task alive for specified time

  - by liori

  Hello, I am looking for a tool to keep a task alive (restarting if necessary) for a specified amount of time (in seconds), and then kill it and stop. For example: keep_for 3600 rsync foo bar:faz should for try to synchronize a directory (restarting rsync in case of f.e. dropped connection), but explicitly kill rsync and stop respawning it after an hour. I tried to write a shell script for that, but it was surprisingly difficult to write, with lots of edge cases (like child process not getting killed, or shell escaping issues). So... maybe there already is a tool for that?

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• when installing software on a mac, how do companies prevent trial software from continueing?

  - by sososo

  i know on windows they write to the registry, do Mac's have some sort of registry?

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• Samba does not reload user group members

  - by xato

  I am running a simple samba server setup where users connect to a share which contains folders for specific user groups. The folders are chmod 2770, so only users which are in the correct group can read/write in them. The problem is that if I change group memberships (i.e. remove user from group / add user to group; changes are in sync between clients and server!) samba does not automatically reload the group memberships for the user, so they can still write to groups that they are no longer a member of etc. I either have to reconnect to the share or to restart samba to apply the changes. Is there any way to prevent group caching and/or enable group membership reload in samba? My smb.conf: https://gist.github.com/anonymous/ca7c10a3b3e2168d7a03

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