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  • How many users are "many users"?

    - by kemp
    I need to find a solution for a website which is struggling under load. The site gets ~500 simultaneous connections during peak time, and counts around 42k hits per day. It's a wordpress based site bridged with a vbulletin forum with a lot of contents and a fairly complex structure which makes intensive use of the database. I already implemented code level full page caching (without this the server just crashes), and configured all other caching directives as well as combining css files and the like to limit http requests as much as possible. I need to understand if there is more that can be done via software or if the load is just too much for the server to handle and it needs to be upgraded, because the server goes down occasionally during peak times. Can't access the server now, but it's a dedicated CentOS machine (I think 4GB ram, can't say what CPU) running apache/mysql. So back to the main question: how can I know when the users are just too many?

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  • keeping URL domain the same when pointing A record to a hosting account

    - by kwight
    Hello, I have a new WordPress website and a legacy billing system. For technical reasons, they cannot be on the same hosting plan. The hosting account for billing (and the original abc.com website) also manages DNS and mail. I'm trying to incorporate the new website under the same domain, eg. abc.com (website, on a different hosting account) and billing.abc.com (billing). I assume the answer is having a different A record for abc.com. I currently have a CPanel shared hosting account to use for the website (but can upgrade if necessary). How would I set this up in CPanel, so that the URLs work properly? Do I need a dedicated IP and then add the domain as an add-on domain? Thanks

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  • Customer Passenger Error Pages

    - by Adam
    How do you replace the Passenger Application failed to load error messages. They are lovely, but I'd rather not display them when we move our application to production. It'd be better to just show them on the dev box and maintenance page on the live site. For clarification, this is the call stack page passenger displays when your rails app fails to load. I'd rather not modify the passenger template files directly. Passenger doesn't seem to be respecting: ErrorDocument 500 /500.html

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  • sfdisk restore partition table if two hardisk have different sizes

    - by MA1
    What will happen if i try to restore the partition table of a larger hard disk to smaller hard disk, for example: partition table of 250GB hard disk to a 80GB hard disk using sfdisk like this. sfdisk /dev/sda < PartitionTable250.txt Will sfdisk detect it? I think there will be no problem if the partition table of a smaller hard disk is going to be restored on a larger hard disk?

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  • How to install grub into an .img file?

    - by Francesco Turco
    I did the following: created an empty .img file with dd associated it to /dev/loop0 with losetup created a partition in it with fdisk formatted such partition with mke2fs copied a custom GNU/Linux system into that partition Now I'd like to make the .img file bootable by installing grub into its MBR and /boot directory. My goal is to load the .img file with qemu. It would be better if grub2 is used instead of grub legacy. Thanks.

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  • Nginx RegEx to match a directory and file

    - by HTF
    I'm wondering if it's possible to match Wordpress directory and specific file in the same location, so at the moment I've got rule to match only the wp-admin directory: ## Restricted Access directory location ^~ /wp-admin/ { auth_basic "Access Denied!"; auth_basic_user_file .users; location ~ \.php$ { fastcgi_pass unix:/var/run/php-fpm/www.sock; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } } I would like to also match the wp-login.php file but I can't get to work, I've tried the following: location ^~ /(wp-admin/|wp-login.php) { ...

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  • Migrating VPC images to Hyper-V

    - by user12015
    I have a couple of development Virtual PC images; now I installed Windows Server 2008 + Hyper-V on my main dev laptop and need to migrate those images to Hyper-V. Google only brings steps for some older version of Hyper-V - I dont even see the wizard steps they are talking about. Any help would be highly appreciated! Thanks! - Andrey

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  • What are the best code-less website design sites available?

    - by Ken Pespisa
    I'm looking for an alternative to www.squarespace.com. Squarespace is great, but leans slightly toward the social networking industry. I'm looking for a simple way to build Web sites for small businesses. The criteria is the following: Requires no programming knowledge. No software to download - all design and maintenance can be done via browser Has a good selection of templates and layouts Essentially I'm looking for the features within Typepad.com or WordPress.com, but instead of focusing around a blog it would help build a more traditional Web site.

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  • Cannot Boot - Ubuntu 9.10

    - by c00lryguy
    I installed Ubuntu 9.10 from my laptop onto a HDD in an external harddrive enclosure. I could not connect online so I plugged it into another computer and updated the system. Now when I plugged it back into my laptop, I cannot boot. It says "ALERT! /dev/sdd1 does not exist. Dropping to shell!" and has a shell that says (initramfs)

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  • rEFIt can't sync GPT and MBR after resizing boot camp partition

    - by benwad
    I've been trying to follow the instructions here to increase the size of my boot camp partition: http://plonsdale.wordpress.com/2011/06/24/tech-tip-increasing-the-size-of-a-bootcamp-partition-with-free-tools/ I got as far as step 3 when I booted from the rEFIt CD. I selected the partitioning tool and it gave me the following message: Error: Not Found returned from gptsync.efi Now the Windows boot camp partition doesn't show up when I hold alt when starting my mac. Trying to boot into Windows using the rEFIt CD gives me a message saying no Windows installation is found. I then booted off the Windows 7 install CD and the 'repair' option gave me this message: This version of System Recovery Options is not compatible with the version of Windows you are trying to repair. Try using a recovery disc that is compatible with this version of Windows ...and if I try and go install a fresh version of Windows on this partition using the 'Custom (advanced)' option I get an error about the partition saying: Windows cannot be installed to this disk. The selected disk is of the GPT partition style

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  • sshfs mount won't start from /etc/rc.local

    - by Alex Flo
    I have the following commands in /etc/rc.local chmod 666 /dev/fuse chmod +x /usr/bin/fusermount /bin/su someuser -c "/usr/bin/sshfs someuser@someserver:/usr/local/storage /usr/local/storage_remote -o nonempty -o reconnect" If I run them from command line, as root, they work. If I reboot the server they won't run from /etc/rc.local. I try to figure out what I do wrong but I don't have console access and I couldn't find any errors in /var/log related to sshfs.

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  • Mount "locked" SD card as read-write in GNU/Linux

    - by Vi
    My Canon PowerShot A470 + CHDK can write to SD-cards that are "locked" (the lock switch is used to make the card bootable), but GNU/Linux `/dev/mmcblk1': Read-only file system (I'm using "Texas Instrument 5-in-1 Multimedia Card Reader") So I have to switch that switch on and off again and again. ("unlocked" to write to the card in Linux, "locked" to boot the camera from it). How to force locked card to be writable in GNU/Linux?

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  • Color Management, Linux, Photoshop C2 via Wine

    - by Kyle Brandt
    I am new to Color Management CMS, so doing it on Linux, and then throw Wine into the mix ... and I am a little lost. However, I have Photoshop CS2 running okay with Crossover Professional on Ubuntu 9.10. I have a Canon 450D (Rebel XSI) and I imagine I will be able to find a profile for my printer. I ordered a Huey Calibrator (yet to come). I guess I will run into problems with Nvidia Twinview, but one calibrated monitor is good enough for now. Am I going to be able to get color management from Camera -- Monitor -- Print? Most specifically, when I get the Monitor profile loaded with something like xcalib, will Photoshop CS2 run through wine (crossover Pro) understand that? Will I need to select specific things / profiles in photoshop under the edit::Color Settings menu? I found several pages on http://jcornuz.wordpress.com/ helpful, but am wondering about the Wine issue, and anything else anyone can do to help.

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  • fsarchiver utility in order to make restore

    - by jennifer
    hi all I use the fsarchiver in order to make restore as the following link: http://www.icewalkers.com/Linux/Software/535640/fsarchiver.html command: fsarchiver restfs /tmp/backup/c0d0p2.fsa id=0,dest=/dev/cciss/c0d0p2 its fail on: [errno=22, Invalid argument]: oper_restore.c#213,extractar_restore_attr_xattr(): xattr:lsetxattr(/racoon,security.selinux) failed Statistics for filesystem 0 please help what is it: errno=22 ???

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  • Centos 5.5 [Read-only file system] issue after rebooting

    - by canu johann
    I have a virtual server under centos 5.5 (hosted by a japanese company called sakura ) Since yesterday, connection through ssh couldn't be established. I've contacted support center who told me to restart VS from the control panel. After restarting, I got the message below Connected to domain wwwxxxxxx.sakura.ne.jp Escape character is ^] [ OK ] Setting hostname localhost.localdomain: [ OK ] Setting up Logical Volume Management: No volume groups found [ OK ] Checking filesystems Checking all file systems. [/sbin/fsck.ext4 (1) -- /] fsck.ext4 -a /dev/vda3 / contains a file system with errors, check forced. /: Inodes that were part of a corrupted orphan linked list found. /: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY. (i.e., without -a or -p options) @@cat: /proc/self/attr/current: Invalid argument Welcome to CentOS Starting udev: @[ OK ] Setting hostname localhost.localdomain: [ OK ] Setting up Logical Volume Management: No volume groups found [ OK ] Checking filesystems Checking all file systems. [/sbin/fsck.ext4 (1) -- /] fsck.ext4 -a /dev/vda3 / contains a file system with errors, check forced. /: Inodes that were part of a corrupted orphan linked list found. /: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY. (i.e., without -a or -p options) [FAILED] *** An error occurred during the file system check. *** Dropping you to a shell; the system will reboot *** when you leave the shell. *** Warning -- SELinux is active *** Disabling security enforcement for system recovery. *** Run 'setenforce 1' to reenable. /etc/rc.d/rc.sysinit: line 53: /selinux/enforce: Read-only file system Give root password for maintenance (or type Control-D to continue): bash: cannot set terminal process group (-1): Inappropriate ioctl for device bash: no job control in this shell bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system bash: cannot create temp file for here-document: Read-only file system (Repair filesystem) 1 # setenforce 1 setenforce: SELinux is disabled (Repair filesystem) 2 # echo 1 (Repair filesystem) 4 # /etc/init.d/sshd status openssh-daemon is stopped (Repair filesystem) 5 # /etc/init.d/sshd start Starting sshd: NET: Registered protocol family 10 lo: Disabled Privacy Extensions touch: cannot touch `/var/lock/subsys/sshd': Read-only file system (Repair filesystem) 6 # sudo /etc/init.d/sshd start sudo: sorry, you must have a tty to run sudo (Repair filesystem) 7 # I have 4 site in production and I need to restart the server quickly (SSH + HTTPD ,...). Thank you for your time.

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  • Ubuntu 10.04 (LTS) DomU on Debian Wheezy Dom0 Xen 4

    - by mdjp
    I have been forced to move from a Centos Dom0 xen 3 Centos + Ubuntu Lucid DomUs To Debian Wheezy Dom0 Xen 4 Ubuntu Lucid DomUs However although I can create new DomUs on wheezy I cannot get them to boot. pygrub returns Error: Bootloader didn't return any data I have ensured that the disks are the correct way around in the xen.cfg and also that the grub config is correct. If I try to run pygrub manually eg /usr/bin/pygrub /dev/volgroup/disk I get Illegal instruction can anyone offer me any advice on this? Thanks Matt

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  • Why apcupsd won't see the UPS connected to the USB posrt on FreeBSD 8.0 amd64

    - by Max Kosyakov
    Hello, Recently I installed an apcusbd on a FreeBSD 8.0 amd64 box via ports system. It installed perfectly but it won't run. Here what is says in the log: FATAL ERROR in generic-usb.c at line 636 Cannot find UPS device It appeared that HID driver picked the /dev/ugen4.2 which could cause the apcusb being unable to find the device. After I had discovered this, I rebuilt the kernel and removed the hid driver. Now it just shows "ugen4.2: <Tripp Lite> at usbus4" and no uhid0 device appears. Nevertheless the problem persisted. I tried to leave the DEVICE config setting blank --- won't help. Then I specified the particular device in the config, but it did not help either. Below you is the output of several commands that can provide some useful information on my case. server# /usr/local/etc/rc.d/apcupsd start Starting apcupsd. server# tail /var/log/messages | grep apcupsd Jun 17 22:30:00 server apcupsd[1520]: apcupsd FATAL ERROR in generic-usb.c at line 636 Cannot find UPS device -- For a link to detailed USB trouble shooting information, please see . Jun 17 22:30:00 server apcupsd[1520]: apcupsd error shutdown completed server# cat /usr/local/etc/apcupsd/apcupsd.conf ## apcupsd.conf v1.1 ## UPSCABLE usb UPSTYPE usb DEVICE /dev/ugen4.2 LOCKFILE /var/lock UPSCLASS standalone UPSMODE disable server# dmesg | grep '^u' uhci0: port 0xa800-0xa81f irq 16 at device 26.0 on pci0 uhci0: [ITHREAD] uhci0: LegSup = 0x0f00 usbus0: on uhci0 uhci1: port 0xa880-0xa89f irq 21 at device 26.1 on pci0 uhci1: [ITHREAD] uhci1: LegSup = 0x0f00 usbus1: on uhci1 uhci2: port 0xac00-0xac1f irq 18 at device 26.2 on pci0 uhci2: [ITHREAD] uhci2: LegSup = 0x0f00 usbus2: on uhci2 usbus3: EHCI version 1.0 usbus3: on ehci0 uhci3: port 0xa080-0xa09f irq 23 at device 29.0 on pci0 uhci3: [ITHREAD] uhci3: LegSup = 0x0f00 usbus4: on uhci3 uhci4: port 0xa400-0xa41f irq 19 at device 29.1 on pci0 uhci4: [ITHREAD] uhci4: LegSup = 0x0f00 usbus5: on uhci4 uhci5: port 0xa480-0xa49f irq 18 at device 29.2 on pci0 uhci5: [ITHREAD] uhci5: LegSup = 0x0f00 usbus6: on uhci5 usbus7: EHCI version 1.0 usbus7: on ehci1 uart0: port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 uart0: [FILTER] usbus0: 12Mbps Full Speed USB v1.0 usbus1: 12Mbps Full Speed USB v1.0 usbus2: 12Mbps Full Speed USB v1.0 usbus3: 480Mbps High Speed USB v2.0 usbus4: 12Mbps Full Speed USB v1.0 usbus5: 12Mbps Full Speed USB v1.0 usbus6: 12Mbps Full Speed USB v1.0 usbus7: 480Mbps High Speed USB v2.0 ugen0.1: at usbus0 uhub0: on usbus0 ugen1.1: at usbus1 uhub1: on usbus1 ugen2.1: at usbus2 uhub2: on usbus2 ugen3.1: at usbus3 uhub3: on usbus3 ugen4.1: at usbus4 uhub4: on usbus4 ugen5.1: at usbus5 uhub5: on usbus5 ugen6.1: at usbus6 uhub6: on usbus6 ugen7.1: at usbus7 uhub7: on usbus7 uhub0: 2 ports with 2 removable, self powered uhub1: 2 ports with 2 removable, self powered uhub2: 2 ports with 2 removable, self powered uhub4: 2 ports with 2 removable, self powered uhub5: 2 ports with 2 removable, self powered uhub6: 2 ports with 2 removable, self powered uhub3: 6 ports with 6 removable, self powered uhub7: 6 ports with 6 removable, self powered ugen4.2: at usbus4 server#

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  • Spoof Mac Address from ip command.

    - by GuyNoir
    I'm trying to spoof my Mac Address on a modified version of linux (Android). The main problem is that because it has been stripped down, the ifconfig command has been stripped out, and I only can use the 'ip' busybox command. I've been trying to use ip link set address xx:xx:xx:xx:xx:xx dev tiwlan0 but I get the error, ip: socket: Operation not permitted Any help?

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  • Can a web server and XBMC HTPC co exist happily?

    - by Mild Fuzz
    I have a machine that is currently dedicated to running my home theatre. It is way more powerful than it needs to be, and spec wise would have no problem running both a few websites and an HTPC What I wanted to know is that is this was a reasonable thing to expect of a single machine? 90% of the time, all it's power would be just for the web server ( and the odd torrent) Currently it's running Windows, but I am pretty sure I will have to turn it into a Linux box Will I run into any problems? Is there anything I need to know before I start? Any prerequisites? The webserver will be required to run Ruby on Rails sites mainly, but might be called upon to run PHP for Wordpress also.

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  • My php homepage downloads index.php instead of being processed on Gandi.net

    - by alekone
    if I go to the homepage of my website http://www.website.com (on a brand new server) the index.php gets donwloaded instead than processed. I don't have the same problem on other folders. my .htaccess reads: AddHandler php5-script .php what could this be? I suspect it's something with php config / or htaccess, but I'm not able to figure it out. help please! edit: I don't know if this helps: it's a wordpress installation, I have this problem only on the public part of the website, not on the admin (that renders correctly)

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  • Suddenly blocked from a site

    - by Diego Romero
    Suddenly from a time to now I haven't been able to go to a site I used to go frequently for maintenance (Wordpress). I tried different browsers, restarting my laptop, clearing cache, history, cookies. Also did a ping to the site ip, go 4 packets send and 4 lost. This is a problem I think with only my laptop, since I've been able to go into the site from other devices in the same network. I have also tried connecting to the same site from a completely different network with the same problem. I really don't know what to do about this, any advices? PS: site hosted in wp engine if that has anything to do with this problem.

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