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Setting up WHM nameservers

- by Miskone

I am new to server administration and I've just got a dedicated root server from Hetzner. First I set up in Hetzner's robot DNS entries Registered nameservers: ns1.raybear.com 88.198.32.57 ns2.raybear.com 88.198.32.57 Under DNS entires I have buzz-buzz.me pointing to 88.198.32.57 // My server IP address and on my WHM I have DNS zone for buzz-buzz.me ; cPanel first:11.42.1.17 (update_time):1402062640 Cpanel::ZoneFile::VERSION:1.3 hostname:hosting.raybear.com latest:11.42.1.17 ; Zone file for buzz-buzz.me $TTL 14400 buzz-buzz.me. 86400 IN SOA ns1.raybear.com. miskone.gmail.com. ( 2014060605 ;Serial Number 86400 ;refresh 7200 ;retry 3600000 ;expire 86400 ) buzz-buzz.me. 86400 IN NS ns1.raybear.com. buzz-buzz.me. 86400 IN NS ns2.raybear.com. buzz-buzz.me. 14400 IN A 88.198.32.57 localhost 14400 IN A 127.0.0.1 buzz-buzz.me. 14400 IN MX 0 buzz-buzz.me. mail 14400 IN CNAME buzz-buzz.me. www 14400 IN CNAME buzz-buzz.me. ftp 14400 IN CNAME buzz-buzz.me. agent 14400 IN A 88.198.32.57 src 14400 IN A 88.198.32.57 platform 14400 IN A 88.198.32.57 But still I have some problems accesing buzz-buzz.me, agent.buzz-buzz.me and platform.buzz-buzz.me Also I have problem getting mails on Google account, I can send but not receive emails. How to solve this. As I said I am completly new here and I need urgent help.:(

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Disabling Keyboard Wakeup for Ubuntu 10.04 on Acer 1810TZ

- by sybreon

My Acer Aspire 1810TZ laptop suspends fine but wakes up on any slight key-press. I would like to disable this behaviour. I read that it involves disabling something in the /proc/acpi/wakeup but SLPB does not seem to be listed at all. root@1810TZ:/etc# cat /proc/acpi/wakeup Device S-state Status Sysfs node UHC0 S3 disabled pci:0000:00:1d.0 UHC1 S3 disabled pci:0000:00:1d.1 UHC2 S3 disabled pci:0000:00:1d.2 UHCR S3 disabled EHC1 S3 disabled pci:0000:00:1d.7 UHC3 S3 disabled pci:0000:00:1a.0 UHC4 S3 disabled UHC5 S3 disabled EHC2 S3 disabled pci:0000:00:1a.7 EXP1 S4 disabled pci:0000:00:1c.0 PXSX S4 disabled pci:0000:01:00.0 EXP2 S4 disabled PXSX S4 disabled EXP3 S4 disabled PXSX S4 disabled EXP4 S4 disabled pci:0000:00:1c.3 PXSX S4 disabled pci:0000:02:00.0 EXP5 S4 disabled PXSX S4 disabled EXP6 S4 disabled PXSX S4 disabled However, the relevant bits seem to be detected from dmesg. [ 0.357628] ACPI: AC Adapter [ACAD] (on-line) [ 0.357749] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0 [ 0.357754] ACPI: Power Button [PWRB] [ 0.357817] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input1 [ 0.359319] ACPI: Lid Switch [LID0] [ 0.359390] input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input2 [ 0.359394] ACPI: Sleep Button [SLPB] [ 0.359475] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input3 [ 0.359479] ACPI: Power Button [PWRF] Not quite sure what to do next.

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Facing application redirection issue on nginx+tomcat

- by Sunny Thakur

I am facing a strange issue on application which is deployed on tomcat and nginx is using in front of tomcat to access the application from browser. The issue is, i deployed the application on tomcat and now setup the virtual host on nginx under conf.d directory [File i created is virtual.conf] and below is the content i am using for the same. server { listen 81; server_name domain.com; error_log /var/log/nginx/domain-admin-error.log; location / { proxy_pass http://localhost:100; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } Now the issue is this when i am using rewrite ^(.*) http://$server_name$1 permanent; in server section and access the URL then this redirects to https://domain.com and i am able to log in to app and able to access the links also [I am not using ssl redirection in this host file and i don't know why this is happening] Now when i removed this from server section then i am able to access the application from :81 and able to logged into the application but when i click on any link in app this redirect me to the login page. I am not getting any logs in application logs as well as tomcat logs. Please help on this if this is a redirection issue of nginx. Thanks, Sunny

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chkconfig creating service symlinks with the wrong order

- by Robert

On RHEL 6.3, I have a system service that should be starting after postgresql and httpd (order 64 and 85, respectively), but chkconfig always places it at order 50. I tried an experiment on a CentOS 6.0 virtual machine to make sure I understood the LSB stanza syntax. I created /etc/init.d/foo, owner root, permissions 755, with this text: ### BEGIN INIT INFO # Provides: foo # Required-Start: postgresql httpd # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Description: Foo init script ### END INIT INFO And then ran chkconfig --add foo. Result: /etc/rc5.d/S86foo is created, as expected. (The other runlevels are also as expected.) I repeated the exact same experiment on the RHEL machine, and it created /etc/rc5.d/S50foo instead. I can't see anything different between the two that would lead to different results. Both machines have postgresql and httpd starting at the same orders and runlevels. Any thoughts? I could just use # chkconfig: 2345 86 50, or manually rename the service symlinks to the correct order, but I'm trying to document an install process for later users, and I want to know how to do it right and understand why it's not working as expected.

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install latest gcc as a non-privileged user

- by voth

I want to compile a program on a cluster (as a non-privileged user), which requires gcc-4.6, but the cluster has only gcc-4.1.2. I don't want to tell the administrator to update gcc, because 1) he is busy and would do it only after several days. 2) He probably wouldn't update it anyway, since other users may need the older gcc version (gcc is not backward compatible) I tried to compile gcc from source, which seems more difficult that it sounds, since it requires several other packages to be installed (GMP, MPFR, MPC, ...), and when I did it, after several hours I got a message like checking for __gmpz_init in -lgmp... no configure: error: libgmp not found or uses a different ABI (including static vs shared). at which point a got stuck. My question is: what is the easiest way to install the latest version of gcc as a non-privileged user? (something like apt-get install XXXXX, with an option to not install as root for example) The setup of the cluster is the following: CentOS release 5.4 (Final) Rocks release 5.3 (Rolled Tacos) If there are no other options than compiling from source, do you have any ideas how to handle the above error?

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Installing xampp on system that already have mysql

- by Charith

I'm rather new to PHP and xampp. I have a computer that has installed MySQL server and MySQL workbench as I was working with Java and NetBeans. Now I want to use my computer for developing PHP and other web stuff too. I installed xampp successfully. But when I'm trying to access phpMyAdmin, it gives me an error saying mysql server rejected its connection Actually I tried stopping my current MySQL service and installing it again. However xampp have a its own mysql server in its installation path too. I tried configuring config.inc.php to use my existing installation of MySQL which is on a separate path. But I failed. Can anyone please instruct me how to configure this xampp to use my existing MySQL server to do everything and ignore the installed one with itself? I don't want two MySQL services to run on my system and clash in future. I'll be glad if anyone can explain to me what is best to use when you're developing Java, PHP, C and all the stuff on the same machine. P.S.: I have been given a password for my existing MySQL sever (user = root) as we do it usually when installing MySQL alone.

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Nginx configuration question

- by Pockata

Hey guys, i'm trying to make the autoindex feature only run for my ip address with this code: server{ ... autoindex off; ... if ($remote_addr ~ ..*.*) { autoindex on; } ... } But it doesn't work. It gives my a 403 :/ Can someone help me :) Btw, i'm using Debian Lenny and Nginx 0.6 :) EDIT: Here's my full configuration: server { listen 80; server_name site.com; server_name_in_redirect off; client_max_body_size 4M; server_tokens off; # log_subrequest on; autoindex off; # expires max; error_page 500 502 503 504 /var/www/nginx-default/50x.html; # error_page 404 /404.html; set $myhome /bla/bla; set $myroot $myhome/public; set $mysubd $myhome/subdomains; log_format new_log '$remote_addr - $remote_user [$time_local] $request ' '"$status" "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; # Star nginx :@ access_log /bla/bla/logs/access.log new_log; error_log /bla/bla/logs/error.log; if ($remote_addr ~ 94.156.58.138) { autoindex on; } # Subdomains if ($host ~* (.*)\.site\.org$) { set $myroot $mysubd/$1; } # Static files # location ~* \.(jpg|jpeg|gif|css|png|js|ico)$ { # access_log off; # expires 30d; # } location / { root $myroot; index index.php index.html index.htm; } # PHP location ~ \.php$ { fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $myroot$fastcgi_script_name; include fastcgi_params; } # .Htaccess location ~ /\.ht { deny all; } } I forgot to mention that when i add the code to remove static files from my access log, the static files cannot be accessed. I don't know if it's relevant :)

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Vagrant doesn't detect chef-solo unless re-installed

- by nightowl

I am using Vagrant to test my Chef recipes in Amazon AWS, and I am encountering an irritating issue: I initially assumed that Vagrant would install chef itself (as it does when using Virtual Box as the provider) but it seems that this needs to be done using the cloud-init script. However, even after I successfully installed the chef gem via cloud-init I was still getting the following error: The chef binary (eitherchef-soloorchef-client) was not found A quick google of this error suggested three probable causes: Chef had failed to install It had installed, but the directory was not in the $PATH environment variable It had installed and in the $PATH but with incorrect permissions I logged in and double checked; chef-solo and chef-client were installed; The path variable for the user, sudo and root all included /usr/local/bin and permissions were all fine. I managed to solve this problem by uninstalling and reinstalling the gem using sudo gem install chef. I don't understand why this should resolve the issue and it is a bit of a problem if I have to ssh into a test box and manually install the gem every time. Does anyone have any suggestions why this might be happening?

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Best shortcut in Total Commander

- by life-warrior

So, what's your favourite TC shortcut or shortcut combination ? Which one do you use and for what purpose ? Among my most often used: Ctrl-Left ( or Ctrl-Right ) - open archive or folder under cursor in opposite tab. Ctrl-Shift-Enter, Alt-F8, Ctrl-X - copy full file path to clipboard. Shift-F6, Shift-End(if needed), Ctrl-C - copy only file name w/o path. Select files, Ctrl-M - multi-rename, for example remove "DVDrip" from file names. Ctrl-\ - go to root directory. Ctrl-D, - go to directory with highlighted letter specified. For example, name a downloads directory "&Downloads" in favourites, and the letter after ampersand will be highlighted. Alt-F7, feed to listbox, Ctrl-A, Mark(menu)-Save selection to file - creates a file with all files and directories inside current, with full path. Ctrl-[3-6] - sort files by name(3), extension(4), date(5), size(6). For example, Sort by name, when you need movies and soundracks with the same name and different extension to group them together. Sort by extension, when you need to find EXEs in Windows directory. Sort by Date, when you need to find the latest file downloaded in your dir. Sort by size, when you need to delete the largest files for free space.

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Forward real IP through Haproxy => Nginx => Unicorn

- by Hendrik

How do I forward the real visitors ip adress to Unicorn? The current setup is: Haproxy => Nginx => Unicorn How can I forward the real IP address from Haproxy, to Nginx, to Unicorn? Currently it is always only 127.0.0.1 I read that the X headers are going to be depreceated. http://tools.ietf.org/html/rfc6648 - how will this impact us? Haproxy Config: # haproxy config defaults log global mode http option httplog option dontlognull option httpclose retries 3 option redispatch maxconn 2000 contimeout 5000 clitimeout 50000 srvtimeout 50000 # Rails Backend backend deployer-production reqrep ^([^\ ]*)\ /api/(.*) \1\ /\2 balance roundrobin server deployer-production localhost:9000 check Nginx Config: upstream unicorn-production { server unix:/tmp/unicorn.ordify-backend-production.sock fail_timeout=0; } server { listen 9000 default; server_name manager.ordify.localhost; root /home/deployer/apps/ordify-backend-production/current/public; access_log /var/log/nginx/ordify-backend-production_access.log; rewrite_log on; try_files $uri/index.html $uri @unicorn; location @unicorn { proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_set_header X-Real-IP $remote_addr; proxy_redirect off; proxy_pass http://unicorn-production; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; } error_page 500 502 503 504 /500.html; client_max_body_size 4G; keepalive_timeout 10; }

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SATA Driver for Acer Aspire One D257

- by Robert Niestroj

i have a Acer Aspire One D257. In this netbook the hard disk is defect so i bought a new one. Now i want to reinstall Windows 7. Im using an external DVD Drive plugged into USB. The Windows 7 DVD is staring, Win7 setup is starting and when it comes to Hard Drive options it says that no drive was detected and i should try search for drivers. It shows me this window: Screenshot from web Now i cant find the right drivers for this netbook to continue with the installation. The laptop has the newest BIOS - 1.15, it is reset to factory default settings except that i enabled the Boot Menu prompt with F12. From the Acer Support Website i've downloaded the SATA AHCI Driver and the Chipset Driver. I unpacked both to a USB flashdrive in seperate folders. When i select the SATA AHCI Driver it does not find any drivers. When i uncheck the checkbox "Hide drivers that are not compatible with hardware on this computer" it shows one driver: Acer HWID (path_to\1.inf). When i continue with this driver i got an error message that says something like: No new devices found. Check if the driver files are on the installation disk. When i show him the Chipset Driver it sees a lot more driver. When i uncheck the checkbox "Hide drivers that are not compatible with hardware on this computer" it show some drivers: Intel N10 Family DMI Bridge Intel N10/ICH7 Family PCI Express Root Port Intel N10/ICH7 SMBUS Controller Intel N10/ICH7 Family USB Universal Host Controller Intel N10/ICH7 Family USB2 Enhanced Host Controller Intel N10/ICH7 Family Interface LPC Controller When i uncheck this checkbox i get a lot more drivers, and some SATA Drivers but the also do not work. I get the same error message as before. Can someone help me find a driver that should work or am i doing anything else wrong?

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Delete ARP cache on Mac OS when moving from one Wifi network to the other

- by Puneet

I am facing wireless connectivity problems when I move from one Wifi network to the other. Here is how it happens: I am at my friends place. I connect to his Wifi. His Wifi router ip address is 192.168.0.1. Everything is fine I close my laptop, come back to my house, open my laptop and I connect to the Wifi Network at my place. Different ESSID, but the Wifi router address is the same 192.168.0.1. At this point I cant get to anything on the internet. To debug I try to see if I can ping the router (192.168.0.1), I cant. I get a no route to host. Meanwhile airport tells me Im connected to Wifi. I see the arp cache and I see a permanent entry for 192.168.0.1 ? (192.168.0.1) at 5c:d9:98:65:73:6c on en1 permanent [ethernet] This permanent bit looks problematic. I go ahead and delete the arp cache entry and all is fine with the world until I go back to my friends place where the same situation plays out. Now my question is, why the hell is this happening? If there is no way around it, can I run a script on Wifi connect/disconnect to clear out the arp cache? Im using Mac OS X $uname -a Darwin 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386 i386

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Hugepages not utilized by MySQL 5.0, CentOS 5

- by TechZilla

I've set up Hugepages, but i'm not seeing any of them reserved. Have I missed a step, or for some particular reason, is MySQL is unable to utilize the Hugepages? I have not created a mount of hugetlbfs, although from what I read, MySQL would not call pages in such a manner. If I'm wrong, please let me know, as that would be a trivial solution. Almost all my MySQL tables are using InnoDB. NOTE: I created a hugetlbfs, no change as expected. Is it possible that rebooting would rectify this situation? I would not want to go through the procedure, as this is high availability, but would do so if necessary. This is the configurations, which I believe are relevant. /etc/sysctl.conf ... ## Huge Pages vm.nr_hugepages = 4096 vm.hugetlb_shm_group = 27 ## SHM kernel.shmmax = 34359738368 kernel.shmall = 8589934592 ... /etc/security/limits.conf ... mysql soft nofile 12888 mysql hard nofile 51552 @mysql soft memlock unlimited @mysql hard memlock unlimited /etc/my.cnf [mysqld] large-pages ... grep Huge /proc/meminfo HugePages_Total: 4096 HugePages_Free: 4096 HugePages_Rsvd: 0 Hugepagesize: 2048 kB id mysql uid=27(mysql) gid=27(mysql) groups=27(mysql) context=root:system_r:unconfined_t:SystemLow-SystemHigh tail -6 /var/log/mysqld.log InnoDB: HugeTLB: Warning: Failed to allocate 1342193664 bytes. errno 12 InnoDB HugeTLB: Warning: Using conventional memory pool 120808 15:49:25 InnoDB: Started; log sequence number 0 1729804158 120808 15:49:25 [Note] /usr/libexec/mysqld: ready for connections. Version: '5.0.95' socket: '/var/lib/mysql/mysql.sock' port: 3306 Source distribution I would really appreciate any help, I'm completely out of ideas. If I missed any more relevant configs, or diagnostics, please comment and I'll add it to the question.

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Setting up self signed cert and CA [plesk / linux]

- by microchasm

I'm about ready to give up and do a clean wipe of this machine and start over with ISPConfig or some other variant. I installed Plesk on this machine to help with some of the handiwork. It is the free version (single domain); I don't need it for much. It's nice, though, to use to set up db's email, etc. Anyway, I would like to set it up as a CA (which I can add to users' trusted root servers to alleviate those warnings). It seems like Plesk does all it can to obfuscate where things are. Despite trying to find the conf files, and crt/pem/key etc. I am (5 hours later) now left with a machine that won't even get to the ssl page. The browser will sit there, until a 'connection reset' error comes up. In error_log, I get messages saying CN doesn't match server name -- which it does. ssl_error_log: [Thu May 13 16:02:14 2010] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?) [Thu May 13 16:12:19 2010] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?) not very helpful. If anyone has any experience, and/or recommendations (including other software), I'd be much obliged. NB RHEL5; 1 domain, 3 subdomains; everything local only. Thanks.

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How make rewrite rules relative to .htaccess file.

- by Kendall Hopkins

Current I have an .htaccess file like this. RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f [OR] RewriteCond %{REQUEST_URI} ^/(always|rewrite|these|dirs)/ [NC] RewriteRule ^(.*)$ router.php [L,QSA] It works create when the site files are in the document_root of the webserver (ie. domain.com/abc.php - /abc.php). But in our current setup (which isn't changeable), this isn't ensured. We can sometimes have arbitrary folder in between the document root and folder of the .htaccess file (ie. domain.com/something/abc.php - /something/abc.php). The only problem with is that is the second RewriteCond no longer works. Is there anyway to dynamically check if the accessed path by a path relative to .htaccess file. For Example: If I have a site where domain.com/rewrite/ is the directory of the .htaccess file. NOT FORCED TO REWRITE -> domain.com/rewrite/index.php FORCED TO REWRITE -> domain.com/rewrite/rewrite/index.php If I have a site where domain.com/ is the directory of the .htaccess file. NOT FORCED TO REWRITE -> domain.com/index.php FORCED TO REWRITE -> domain.com/rewrite/index.php

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Weird mouse behaviour. Debian wheezy

- by DevNoob

When I move my mouse slowly over the desktop the pointer jumps often a few pixels (one or two) in the opposite direction of which I move my mouse. Horribly when trying to set the cursor around some semicolons in eclipse. I guess this is the result of a wrong set resolution of it. I suppose this is because the mouse was set initially really fast and even if I do xset 1/2 3, the mouse is just to fast and unprecise for me. It aready tried to configure the xorg.conf like this: Section "InputDevice" Identifier "Configured Mouse" Driver "mouse" Option "Device" "/dev/mouse" Option "Protocol" "Auto" Option "Name" "Logitech G3" Option "Resolution" "2000" EndSection But with no effect. Maybe because there is no /dev/mouse. This ist the content of dev. Maybe you can tell me which one is the mouse. autofs block bsg btrfs-control bus cdrom cdrw char console core cpu cpu_dma_latency disk dvd dvdrw fd fd0 full fuse fw0 hidraw0 hidraw1 hpet input kmsg log loop0 loop1 loop2 loop3 loop4 loop5 loop6 loop7 loop-control MAKEDEV mapper mcelog mem net network_latency network_throughput null nvidia0 nvidiactl oldmem port ppp printer psaux ptmx pts random rfkill root rtc rtc0 sda sda1 sda2 sda3 sda5 sda6 sda7 sda8 sdb sdb1 sg0 sg1 sg2 shm snapshot snd sndstat sr0 stderr stdin stdout tty tty0 tty1 tty10 tty11 tty12 tty13 tty14 tty15 tty16 tty17 tty18 tty19 tty2 tty20 tty21 tty22 tty23 tty24 tty25 tty26 tty27 tty28 tty29 tty3 tty30 tty31 tty32 tty33 tty34 tty35 tty36 tty37 tty38 tty39 tty4 tty40 tty41 tty42 tty43 tty44 tty45 tty46 tty47 tty48 tty49 tty5 tty50 tty51 tty52 tty53 tty54 tty55 tty56 tty57 tty58 tty59 tty6 tty60 tty61 tty62 tty63 tty7 tty8 tty9 ttyS0 ttyS1 ttyS2 ttyS3 uinput urandom usb vcs vcs1 vcs2 vcs3 vcs4 vcs5 vcs6 vcs7 vcsa vcsa1 vcsa2 vcsa3 vcsa4 vcsa5 vcsa6 vcsa7 vga_arbiter vmci vmmon vmnet0 vmnet1 vmnet8 vsock watchdog xconsole zero So my question is: How do I setup my mouse correctly in Debian wheezy?

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Why is lighttpd and fastcgi keeping sending me the *.scgi file instead of the website content?

- by e-satis

I have the following config: server.modules = ( "mod_compress", "mod_access", "mod_alias", "mod_rewrite", "mod_redirect", "mod_secdownload", "mod_h264_streaming", "mod_flv_streaming", "mod_accesslog", "mod_auth", "mod_status", "mod_expire", "mod_fastcgi" ) [...] fastcgi.server = ( ".php" => (( "bin-path" => "/usr/bin/php-cgi", "socket" => "/var/tmp/lighttpd/php-fastcgi.socket" + var.PID, "max-procs" => 1, "kill-signal" => 9, "idle-timeout" => 10, "bin-environment" => ( "PHP_FCGI_CHILDREN" => "200", "PHP_FCGI_MAX_REQUESTS" => "1000" ), "/pyapps/essai/blondes.fcgi" => ( "main" => ( "socket" => "/var/tmp/lighttpd/django-fastcgi.socket", ), ), "bin-copy-environment" => ( "PATH", "SHELL", "USER" ), "broken-scriptfilename" => "enable" ))) [...] $HTTP["host"] =~ "(^|www\.)cam\.com(\:[0-9]*)?$" { server.document-root = "/home/cam/web/" accesslog.filename = "/home/cam/log/access.log" server.errorlog = "/home/cam/log/error.log" server.follow-symlink = "enable" # files to check for if .../ is requested server.indexfiles = ( "index.php", "index.html", "index.htm", "index.rb") url.rewrite = ( "^(/blondes/.*)$" => "/pyapps/essai/blondes.fcgi$1" ) } I have the following dir tree: /home/tv/web/ `-- pyapps `-- essai `-- __init__.py `-- blondes.fcgi `-- blondes.pid `-- django-fcgi.py `-- manage.py `-- manage.pyo `-- plop `-- settings.py `-- urls.py No error when restarting lighthttpd. The I run: ./manage.py runfcgi method=prefork socket=/var/tmp/lighttpd/django-fastcgi.socket daemonize=false pidfile=blondes.pid No errors neither. I then go to http://cam.com/blondes/. I offers me to download an empty file. I checked permissions but everything is set to the same user and group, and they work for the PHP site. The file /var/tmp/lighttpd/django-fastcgi.socket exists. When I reload the page, I got no output in error logs, nor in the manage.py runfcgi command. I probably missed something obvious, but what ?

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Transparent proxying leaves sockets with SYN_RCVD in MacOS X 10.6 Snow Leopard (and maybe FreeBSD)

- by apenwarr

I'm trying to create a transparent proxy on my MacOS machine in order to port the sshuttle ssh-based transproxy VPN from Linux. I think I almost have it working, but sadly, almost is not 100%. Short version is this. In one window, start something that listens on port 12300: $ while :; do nc -l 12300; done Now enable proxying: # sysctl -w net.inet.ip.forwarding=1 # sysctl -w net.inet.ip.fw.enable=1 # ipfw add 1000 fwd 127.0.0.1,12300 log tcp from any to any And now test it out: $ telnet localhost 9999 # any port number will do # this works; type stuff and you'll see it in the nc window $ telnet google.com 80 # any host/port will do # this *doesn't* work! After the latter experiment, I see lines like this in netstat: $ netstat -tn | grep ^tcp4 tcp4 0 0 66.249.91.104.80 192.168.1.130.61072 SYN_RCVD tcp4 0 0 192.168.1.130.61072 66.249.91.104.80 SYN_SENT The second socket belongs to my telnet program; the first is more suspicious. SYN_RCVD implies that my SYN packet was correctly captured by the firewall and taken in by the kernel, but apparently the SYNACK was never sent back to telnet, because it's still in SYN_SENT. On the other hand, if I kill the nc server, I get this: $ telnet google.com 80 Trying 66.249.81.104... telnet: connect to address 66.249.81.104: Connection refused telnet: Unable to connect to remote host ...which is as expected: my proxy server isn't running, so ipfw redirects my connection to port 12300, which has nobody listening on it, ie. connection refused. My uname says this: $ uname -a Darwin mean.local 10.2.0 Darwin Kernel Version 10.2.0: Tue Nov 3 10:37:10 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386 i386 Does anybody see any different results? (I'm especially interested in Snow Leopard vs Leopard results, as there seem to be some internet rumours that transproxy is broken in Snow Leopard version) Any advice for how to fix?

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Completely remove and freshly install MySql on XP?

- by Corey Ogburn

I have read this question and have not found it as a solution and I have even attempted much more. I've uninstalled MySql 5.5.18 and deleted: C:\Program Files\MySql C:\Documents and Settings\All Users\Application Data\MySql After uninstalling, I restart the computer. When I reinstall, in the MySql Server Instance Configuration Wizard I leave everything to their defaults except: I add a firewall exception I check Launch MySQL Server Automatically I check Include BIN directory in windows path Enable root access from remote machines (I'll lock that down later, just debugging for now, I have also tried installing without this option to no avail) I've tried Typical and Complete while installing, as well as with and without strict mode. No combination shows a difference. After all this, it cannot Apply Security Settings and I get a 10061 error (it also said error number 2003) and this article didn't help. I've tried everything I can to completely uninstall and successfully reinstall so I can start from scratch. I've uninstalled and reinstalled about a dozen times with minor changes (including turning off the firewall at times), each time deleting the above folders and any proper registry entries with no success. Note by success, applying security settings and a working remote connection. I can connect locally every time, but it's remotely that counts. I have tried to look for exterior problems such as port forwarding in the router and (even though the installer should add it) I do double check the firewall settings, which have always allowed the default port. I'm out of ideas.

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How to pass alias through sudo

- by Tanktalus

I have an alias that passes in some parameters to a tool that I use often. Sometimes I run as myself, sometimes under sudo. Unfortunately, of course, sudo doesn't recognise the alias. Does anyone have a hint on how to pass the alias through? In this case, I have a bunch of options for perl when I'm debugging: alias pd='perl -Ilib -I/home/myuser/lib -d' Sometimes, I have to debug my tools as root, so, instead of running: pd ./mytool --some params I need to run it under sudo. I've tried many ways: sudo eval $(alias pd)\; pd ./mytool --some params sudo $(alias pd)\; pd ./mytool --some params sudo bash -c "$(alias pd)\; pd ./mytool --some params" sudo bash -c "$(alias pd); pd ./mytool --some params" sudo bash -c eval\ "$(alias pd)\; pd ./mytool --some params" sudo bash -c eval\ "'$(alias pd)\; pd ./mytool --some params'" I was hoping for a nice, concise way to ensure that my current pd alias was fully used (in case I need to tweak it later), though some of my attempts weren't concise at all. My last resort is to put it into a shell script and put that somewhere that sudo will be able to find. But aliases are soooo handy sometimes, so it is a last resort.

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Website has become slower on a VPS, was much fast on a shared host. What's wrong?

- by Arpit Tambi

My shared host suspended my website stating system overload, so I moved my website to a VPS which has 4GB RAM. But for some reason the website has become very slow. This is the vmstat output - procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------ r b swpd free buff cache si so bi bo in cs us sy id wa st 1 0 0 3050500 0 0 0 0 0 1 0 0 0 0 100 0 0 Here's the Apache Benchmark output for a STATIC html page I ran on the server itself - Benchmarking www.ask-oracle.com (be patient)...apr_poll: The timeout specified has expired (70007) Total of 20 requests completed Update: Server Config: List item Centos 5.6 4 cores cpu 4 GB RAM LAMP stack with APC Wordpress Only one website It takes almost double time to load now, same website was much fast on shared hosting. I know I need to tweak some settings but have no clue where to start from? I have already tried to optimize apache, mysql etc. Update 2: CPU usage is low, see uptime output: 11:09:02 up 7 days, 21:26, 1 user, load average: 0.09, 0.11, 0.09 Update 3: When I load any webpage, browser shows "Waiting" for a long time and then page loads quickly. So I suspect server can accept only limited connections and holds extra connections in a waiting state. How to check this? Update 4: Following is the output on executing netperf TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to localhost.localdomain (127.0.0.1) port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 9615.40 [root@ip-118-139-177-244 j3ngn5ri6r01t3]# Here are the Apache MPM settings from httpd.conf, do they look okay? <IfModule worker.c> StartServers 5 MaxClients 100 MinSpareThreads 50 MaxSpareThreads 250 ThreadsPerChild 125 MaxRequestsPerChild 10000 ServerLimit 100 </IfModule>

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Resize a RAID 1 volume on OS X Snow Leopard - how? (Note: software raid)

- by Emmel

I've scoured the Internet in search of an answer to this question, and as usual with OSX-related topics, I often don't find any deep-dive technical explanations sufficient enough to feel confident doing dangerous things. Here is my question: I have a Mac Pro, running OS X 10.6.2. I have, as my main root/boot disk, a RAID 1 volume called "Mirror1". Mirror1 is comprised of two 1 TB disks. Mirror1, however, is fixed at 640 GB. That's because, I originally took a 640GB disk, bought a terabyte disk, mirrored it (using diskutil appleraid enable), when it synced I removed the 640GB and replaced it with a second 1 TB disk, and synced again. Voila! A single 640 GB replaced by two 1 TB disks in a mirror.. Actually, no. There's still something missing from the equation: Mirror1 needs to be expanded from 640GB to 1 TB to match the partition sizes on each of those disks. How do I do this? Perhaps the diskutil output will help: -> diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk0 1: EFI 209.7 MB disk0s1 2: Apple_RAID 999.9 GB disk0s2 3: Apple_Boot Boot OSX 134.2 MB disk0s3 /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk1 1: EFI 209.7 MB disk1s1 2: Apple_RAID 999.9 GB disk1s2 3: Apple_Boot Boot OSX 134.2 MB disk1s3 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *640.1 GB disk2 1: EFI 209.7 MB disk2s1 2: Apple_HFS Mac Disk 2 536.7 GB disk2s2 3: Microsoft Basic Data BOOTCAMP 103.1 GB disk2s3 /dev/disk3 #: TYPE NAME SIZE IDENTIFIER 0: Apple_HFS Mirror1 *639.8 GB disk3 -> diskutil appleraid list AppleRAID sets (1 found) =============================================================================== Name: Macintosh HD Unique ID: 1953F864-B474-4EB6-8E69-41834EBD0247 Type: Mirror Status: Online Size: 639.8 GB (639791038464 Bytes) Rebuild: manual Device Node: disk3 ------------------------------------------------------------------------------- # Device Node UUID Status ------------------------------------------------------------------------------- 0 disk1s2 25109BAE-5697-40EA-B612-0217851444F7 Online 1 disk0s2 11B83AB0-8148-4DB6-8761-DEF08C855F8D Online =============================================================================== Thanks in advance.

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Disabling Keyboard Wakeup for Ubuntu 10.04 on Acer 1810TZ

- by sybreon

My Acer Aspire 1810TZ laptop suspends fine but wakes up on any slight key-press. I would like to disable this behaviour. I read that it involves disabling something in the /proc/acpi/wakeup but SLPB does not seem to be listed at all. root@1810TZ:/etc# cat /proc/acpi/wakeup Device S-state Status Sysfs node UHC0 S3 disabled pci:0000:00:1d.0 UHC1 S3 disabled pci:0000:00:1d.1 UHC2 S3 disabled pci:0000:00:1d.2 UHCR S3 disabled EHC1 S3 disabled pci:0000:00:1d.7 UHC3 S3 disabled pci:0000:00:1a.0 UHC4 S3 disabled UHC5 S3 disabled EHC2 S3 disabled pci:0000:00:1a.7 EXP1 S4 disabled pci:0000:00:1c.0 PXSX S4 disabled pci:0000:01:00.0 EXP2 S4 disabled PXSX S4 disabled EXP3 S4 disabled PXSX S4 disabled EXP4 S4 disabled pci:0000:00:1c.3 PXSX S4 disabled pci:0000:02:00.0 EXP5 S4 disabled PXSX S4 disabled EXP6 S4 disabled PXSX S4 disabled However, the relevant bits seem to be detected from dmesg. [ 0.357628] ACPI: AC Adapter [ACAD] (on-line) [ 0.357749] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0 [ 0.357754] ACPI: Power Button [PWRB] [ 0.357817] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input1 [ 0.359319] ACPI: Lid Switch [LID0] [ 0.359390] input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input2 [ 0.359394] ACPI: Sleep Button [SLPB] [ 0.359475] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input3 [ 0.359479] ACPI: Power Button [PWRF] Not quite sure what to do next.

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Upgrading MySQL Connector/Net

- by Todd Grover

I am trying to publish a website with our hosting provider. I am getting error due to the fact that they only allow a medium trust and the MySQL Connector/Net that I am using requires reflection to work. Unfortunately, reflection is not allowed in a medium trust. After some research I found out that the newest version of the MySQL Connector/Net may solve this problem. Connector/Net 6.6 includes enhancements to partial trust support to allow hosting services to deploy applications without installing the Connector/Net library in the GAC. I am thinking that will solve my problem. So, I unistalled MySQL Connector/Net 6.4.4 and I installed MySQL Connector/Net 6.6.4. When I run the application in Visual Studio 2010 I get the error: ProviderIncompatibleException was unhandled by user code The message is An error occurred while getting provider information from the database. This can be caused by Entity Framework using an incorrect connection string. Check the inner exceptions for details and ensure that the connection string is correct. InnerException is The provider did not return a ProviderManifestToken string. Everything works fine when I have Connector/Net 6.4.4 installed. I can access the database and perform Read/Write/Delete action against it. I have a reference to the following in the project: MySql.Data MySql.Data.Entity MySql.Web My connection string in Web.config <connectionStrings> <add name="AESSmartEntities" connectionString="server=ec2-xxx-xx-xxx-xx.compute-1.amazonaws.com; user=root; database=nunya; port=3306; password=xxxxxxx;" providerName="MySql.Data.MySqlClient" /> </connectionStrings> What might I be doing wrong? Do I need any additional setting(s) to work with version 6.6.4 that wasn't required in the older version 6.4.4?

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Turn off gzip for a location in Nginx

- by Nyxynyx

How can gzip be turned off for a particular location and all its sub-directories? My main site is at http://mydomain.com and I want to turn gzip off for both http://mydomain.com/foo and http://mydomain.com/foo/bar. gzip is turned on in nginx.conf. I tried turning off gzip as shown below, but the Response Headers in Chrome's dev tools shows that Content-Encoding:gzip. How should gzip/output buffering be disabled properly? Attempt: server { listen 80; server_name www.mydomain.com mydomain.com; access_log /var/log/nginx/access.log; error_log /var/log/nginx/error.log; root /var/www/mydomain/public; index index.php index.html; location / { gzip on; try_files $uri $uri/ /index.php?$args ; } location ~ \.php$ { fastcgi_pass unix:/var/run/php5-fpm.sock; fastcgi_index index.php; include fastcgi_params; fastcgi_read_timeout 300; } location /foo/ { gzip off; try_files $uri $uri/ /index.php?$args ; } }

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