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• Ubuntu server failing daily

  - by deanvz

  Symptoms: Server becomes unresponsive - Increase in load, all services stop Loss of connectivity - Ping/SSH Flush MySQL hosts after reboot - As MySQL refuses new connections Intermittent Apache crashes Generally happens early morning hours - 2 days of the week are however excluded Changes made: Updated the OS - to Ubuntu 10.04.4 LTS Not sure if the MySQL server was also updated in the process Current MySQL version - mysql Ver 14.14 Distrib 5.1.63, for debian-linux-gnu (x86_64) using readline 6.1 Updated Plesk from 10.4.4 Update #47 to 11.0.9 Update #23 Rebooted on almost daily basis All crons stopped for the times corresponding to the server crashes Created a MySQL log to monitor the lock times on queries Possible causes: Failing hardware Incorrect software configuration (MySQL, Apache etc) Responsibilities: Small webserver Runs our billing system - WHMCS Responsible for CRONs Bulk-email solution - No delivery times coincide with server crashes Proposed solutions: Move machine over to VM Format and restore the Plesk server backup and take it from there? Side notes: Seems to be a general Apache failure across all our linux servers - Intermittent problem Are we doing something fundamentally wrong in the Apache config? (I understand that this is a secondary question, just making sure that it isnt possibly holding any relevance)

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• Installing MySQL 5.5 manually on Ubuntu 10.04 server, errors about "/tmp/mysql.sock"

  - by black sensei

  I've set up an Ubuntu server and wanted to install MySQL 5.5. I've been following these MySQL documentation steps. I have libaio dev installed. Everything went fine until I ran bin/mysqld_safe --user=mysql & It runs into an issue and never returns to the shell. The output of mysqld_safe is logging to /usr/local/mysql/data/host_name.err. When I checked that file, it was complaining about /tmp/mysql.sock. I can unfortunately describe just parts of the error, since before I started right now it deleted all the files I've started installing back then by mistake. Should I change the socket to /var/run/mysqld/mysqld.socket after copying the .cnf file to /etc? I've also checked the /var/run/mysqld directory and there is no mysqld.socket. How do I proceed? Thanks for reading this and helping out

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• How to install Apache 2.4.3 on Ubuntu 12.04

  - by SFox

  I have a clean, fresh OS of Ubuntu 12.04 on my VPS. My goal is to install WordPress. I want to install the latest version of Apache (2.4.3) but I'm encountering two problems. I'm following instructions like this & this. Both produced the same errors. The first I encounter after running "./configure --prefix=/usr/local/apache2 --with-included-apr --with-included-apr-util " the system says "It must specify an install prefix, a build directory, or an apr-config file" The second I encounter immediately afterwards, when I attempt to run make or make install. "No targets specified and no makefile found. stop." I honestly have not been able to find a solution for either, and I'm now looking for some help from the community. Any help would be greatly appreciated.

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• avconv and ffmpeg - drawtext filter text_w evaluates as 0 in Ubuntu Precise

  - by Chris White

  I'm attempting to draw text onto a video using either the avconv or ffmpeg commands. When specifying x= for where on the final video to place the text, the 'text_w' value is evaluating to 0, rather than the width of the rendered text as it should. I'm using Ubuntu 12.04 I've got avconv version 0.8.3-4:0.8.3-0ubuntu0.12.04.1 and ffmpeg version 0.8.3-4:0.8.3-0ubuntu0.12.04.1 Example command: avconv -i test.mov -vf "drawtext=fontfile='/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf':text='test text':x=text_w:y=50:fontsize=24:fontcolor=black" texted.mov This command causes the text to be printed as if x were set to 0. What I'd really like to be able to do is center the text horizontally using something like this: avconv -i test.mov -vf "drawtext=fontfile='/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf':text='test text':x=(main_w-text_w)/2:y=50:fontsize=24:fontcolor=black" texted.mov Using ffmpeg for to attempt the same ends with the same result ffmpeg -i test.mov -vf "drawtext=fontfile='/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf':text='test text':x=(main_w-text_w)/2:y=50:fontsize=24:fontcolor=black" texted.mov

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• Setting up nginx on Ubuntu?

  - by Industrial

  Hi everyone, I've just setup a VPS running Ubuntu server 10.10 as a test environment to run with nginx. This far i've ran apt-get install nginx php5 php5-cgi and accessed the IP of the VPS with a browser which outputs It works, so it should be ready to run. Never having worked with nginx in the past, I have no idea on what to do next. How should I config my nginx install to run properly as a staging server in my LAN? Apparently, there's multiple configs for nginx including sites-default and nginx-default making me really confused.

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• Ubuntu User WWW/FTP

  - by SnIpY

  I have a user named 'user' which I use to login to the ftp of my website. However, this presents me with a problem. If I want to allow my user to access to ftp, I have to typ the following: chown -R user:ftpusers /var/www/ By doing this, my website is no longer available when surfing to it. To make it available again, I have to typ the following command: chown -R www-data:www-data /var/www/ the user 'user' is in both the ftpusers and www-data group. How can I fix this so I wouldn't have to typ this anymore? I'm using apache2 and vsftpd on ubuntu

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• Compiling PHP 5.3.3 on Ubuntu 8.04: Could not find libevent

  - by Nick

  When attempting to ./configure PHP 5.3.3 on Ubuntu 8.04, I get the error: checking for libevent >= 1.4.11 install prefix... configure: error: Could not find libevent >= 1.4.11 in /usr/local/ I tried installing the libevent-dev and libevent1 packages, but same error. I then removed the packages, downloaded and compiled libevent from source. Same error. Locate shows that libevent was installed to /usr/local/lib/libevent.so with all its friends in /usr/local/lib/. I tried configuring with the option: --with-libevent-dir=/usr/local/lib/ Basically the same error: checking for libevent >= 1.4.11 install prefix... configure: error: Could not find libevent >= 1.4.11 in /usr/local/lib/ Any suggestions??

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• printing foreign text for PHP on UBUNTU and CENTOS

  - by hao

  Hey guys, I am using domdocuments and using things like $div-nodeValue to obtain certain info from a web page. On my ubuntu machine when i do php crawl.php everything is displayed properly in Chinese (the page is in UTF-8). However on my CENTOS machine using the same code I get æ´å¤åå¸ when I print in the terminal. and when I save it to the database, the characters are also messed up. One thing I noticed is that when I do print $content, both systems display them properly.

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• Wireless card not found on Ubuntu

  - by Idealflip

  Hello all, I'm trying to setup Ubuntu on an old PC. I ran the following command, lspci, in order to get info on the wireless card installed. 00:0a.0 Ethernet controller: Marvell Technology Group Ltd. 88w8335 [Libertas] 802.11b/g Wireless (rev 03) Does anyone know where I can get drivers for this card/chip? And also, how to install (I'm rather new to linux). Also, I'm sure the card is working because I just formatted over xp, and everything was working well. Thanks in advanced!

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• Ubuntu 14.04 disk utility SMART self-test failed threshold not exceeded

  - by user2323470

  I'm using the "Disks" program in Ubuntu 14.04 (live DVD) to assess the health of a drive I suspect is failing. However, when I first opened the program, it showed that the overall health was OK and all assessments are OK as well. I then tried to run a short self-test, but now the overall assessment shows a red "SELF-TEST FAILED". In the details section it says "Last self-test failed (read)" and "threshold not exceeded". All individual assessments are still OK though!! What I don't understand is, does that mean that the test executed and determined that the drive is a goner, or does it mean that the test didn't actually execute properly?

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• Increase text size in Ubuntu due to having large resolution/monitors

  - by Sridhar Ratnakumar

  I have 24" dual monitors with 1920x1080 resolution on both of them. Consequently the text appears so small. I use the following text-intensive applications frequently: Web browser (Google Chrome) IDE (Komodo) Terminal (Gnome Terminal) Email (Thunderbird) I can configure text size on IDE, Terminal and Email. But for Chrome, it is not a good idea to set proportional font size because often one wants to see the entire (not just proportional fonts) site to be zoomed. So I am asking: Is it possible to increase DPI in Ubuntu (much like on Windows) so as to increase the text size across all apps? OR Is it possible to set permanent 'zoom' in Google Chrome, using a third-party extension maybe?

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• WEP key not working on laptop running Ubuntu

  - by stupid-idiot

  I can't connect to my router via wifi from my laptop (running Ubuntu) even if I'm 100% sure the WEP key I punch in is correct. It works via LAN though. I'm also not able to ping localhost 127.0.0.1. I had some problems setting up the radio on my network card but I think that that works since it finds some wireless networks. (Although it's much much faster than Windows it's useless since I can't download any libraries for development.) What could be wrong with my setup?

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• Ubuntu: Take actions when system temperature gets too high

  - by Josh

  One of the CPU fans on my Compaq Presario laptop running Ubuntu 9.10 seems to have bit the dust. The fan is deep within the case and I intend to replace the laptop in the next 6 months so it's not worth replacing it. I have the laptop on a cooling pad and most of the time the system is fine, CPU temps around 90°-110°F. Occasionally, however, I'm seeing random lockups which I believe is due to the system overheating. How can I configure the system to: Lower the CPU speed when the temperature reaches a certain level? (I.E. 110°F) Shutdown the system when the tempature reaches a critical level? (And what would that be? 130°?)

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• Xen 4.0.1 on Ubuntu 10.10 not booting

  - by Disco

  I'm trying to get Xen 4.0.1 run as dom0 on a fresh/clean install of 10.10 desktop (x64). Followed the step by step tutorial at http://wiki.xensource.com/xenwiki/Xen4.0 I have the pvops kernel in /boot, also included the ext4 fs support by recompiling the kernel by : make -j6 linux-2.6-pvops-config CONFIGMODE=menuconfig make -j6 linux-2.6-pvops-build make -j6 linux-2.6-pvops-install Here's my grub entry : menuentry 'Xen4' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod part_msdos insmod ext2 insmod ext3 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set 2bf3177a-92fd-4196-901a-da8d810b04b4 multiboot /xen-4.0.gz dom0_mem=1024M loglvl=all guest_loglvl=all module /vmlinuz-2.6.32.27 root=UUID=2bf3177a-92fd-4196-901a-da8d810b04b4 ro module /initrd.img-2.6.32.27 } blkid /dev/sda1 gives the : /dev/sda1: UUID="2bf3177a-92fd-4196-901a-da8d810b04b4" TYPE="ext3" My partition shemes is : /boot (ext3) / (ext4) Whatever option i've tried i end up with : mounting none on /dev failed: no such file or directory And message complaining that it cannot find the device with uuid ... It's taking my hairs out, if somone has a clue ...

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• Unable to mount portable hard drive on Ubuntu

  - by VoY

  My portable hard drive (WD My Passport), which used to work correctly now does not automount on my Ubuntu system. It does work on a Windows machine or even when plugged into WD HD TV, which is a Linux based device. There's one NTFS partition spanning the whole drive. When I plug the disk in, I see the following in dmesg: [269259.504631] usb 1-2.2: new high speed USB device using ehci_hcd and address 20 [269259.604674] usb 1-2.2: configuration #1 chosen from 1 choice However it does not mount in GNOME and I don't see it when I type: sudo fdisk -l Any suggestions why this might be? I repaired the partition using chkdsk on Windows, so the issue is probably not filesystem related.

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• interesting uses for a headless host running Ubuntu.

  - by Manuel

  Hey! So, I have configured a pc with no monitor, keyboard or mouse running Ubuntu. I use it as a ssh server, file backup, web server, etc. Though, it seems as if I could use it for sooo much more. The problem is I can't think of many more uses. What interesting uses of a headless host have you heard of? Is there a cool trick you want to share? Thanks! Manuel

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• Ubuntu 10.04 install - frozen at splash, no errors

  - by Andrew Bolster

  Has anyone else come across this? After about as much of a fresh install as i can muster without buying new drives, and after walking through the amd64 alternate install with ease, and after a little 'pre-splash' screen where the orange dots under the (very sexy) new ubuntu logo blink away, I'm left with a vista of purple hues and logo plonked in the middle, with the dots not going anywhere. I was at this same position last night at 3 in the morning, left it lying overnight, and nothing had changed, so I'm pretty sure its frozen, but when i go in and inspect /var/log/* in the recovery console, no errors, no complaints, no problems. I'm at my wits end and am just about ready to try anything. If this was on SO I'd be bountying, but if anyone can help you'll just have to cope with my thanks! Additional Details on my blog and my first attempt at asking for help

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• Remove apache from ubuntu

  - by Keyo

  I want to remove apache as if it was never installed, no config files left behind. I intend to reinstall apache2 fresh. I have tried various combinations of apt-get options to no success. apt-get remove apache2 apt-get remove --purge apache2 apt-get purge apache2 apt-get autoremove apache2 None of these totally remove apache properly. Nothing works, the /etc/apache2 directory still exists. So I deleted it. When I install apache the folder is never created. Running Ubuntu server 10.10.

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• ubuntu: sending mail with postfix?

  - by ajsie

  i've got some questions about how it works: so ubuntu server comes with postfix installed. if i want my php script to send a mail to lets say [email protected], how does it work? do i have to specify any ip to another MTA (my ISP's MTA?) in postfix's configuration file? and if someone sends back, will it get to my ip? is it postfix that receives it? or has it to do with fetchmail?

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• Ubuntu 10.04 install - frozen at splash, no errors

  - by Andrew Bolster

  Has anyone else come across this? After about as much of a fresh install as i can muster without buying new drives, and after walking through the amd64 alternate install with ease, and after a little 'pre-splash' screen where the orange dots under the (very sexy) new ubuntu logo blink away, I'm left with a vista of purple hues and logo plonked in the middle, with the dots not going anywhere. I was at this same position last night at 3 in the morning, left it lying overnight, and nothing had changed, so I'm pretty sure its frozen, the virtual terminals are not accessible, ie, c+a+F1 etc does nothing, but when i go in and inspect /var/log/* in the recovery console by booting off the installation cd, no errors, no complaints, no problems. I'm at my wits end and am just about ready to try anything. If this was on SO I'd be bountying, but if anyone can help you'll just have to cope with my thanks! Additional Details on my blog and my first attempt at asking for help Update: I can reasonably say it is not a hardware fault, as a full install of 9.10 with dual screen nvidia xinemara indicate that nothing is wonky

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• How to install vmware in Ubuntu 10.04

  - by piemesons

  I need to install minix3 in vmware. I m using ubuntu 10.04. i downlaoded vmware and now i am trying to install it using:-- sudo apt-get install build-essential linux-headers-`uname -r` chmod +x VMware-Player*.bundle gksudo bash ./VMware-Player*.bundle VM Player Installer window popped up Clicked on the ‘Install’ button The progress bar started going; above the bar, it says that the installer is ‘Configuring’ This is was more than 15 minutes ago and still going. Nothing else is running on the system (consuming CPU, mem, …) Is the ‘Configuring’ step supposed to take this long? Seems to me it might be hung. Question: Did i do something wrong? Is there a log some place that can help me to debug this?

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• How to make gVim transparent on Ubuntu 10.10?

  - by trolle3000

  I have a .gvimrc file that works fine on OS X 10.6, but won't work on Ubuntu. It contains a line that reads set transparency=15, and when i run gVim it reports: Error detected while processing /home/user/.gvimrc: line 25: E518: Unknown option: transparency=15 Any ideas to make gVim transparent by default? Chers! The whole .gvimrc file for completion: " Turn on line numbers set number " Change colorscheme colorscheme ir_black " Turns on the tab bar always set showtabline=2 " Number of horizontal lines on the screen set lines=60 " GUI Option to remove the Toolbar (T) set guioptions-=T " Sets the percent transparency set transparency=15

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• USB resets with Ubuntu 9.10

  - by Grumbel

  Since the upgrade to Ubuntu 9.10 I have issues with getting USB device resets on my Maxtor OneTouch USB harddrive: Nov 9 20:54:37 localhost kernel: [32459.100021] usb 2-2: reset high speed USB device using ehci_hcd and address 4 Nov 9 21:54:37 localhost kernel: [36059.100017] usb 2-2: reset high speed USB device using ehci_hcd and address 4 Nov 9 23:24:37 localhost kernel: [41459.112025] usb 2-2: reset high speed USB device using ehci_hcd and address 4 The device itself continues to work fine, the resets however wake the device out of its sleep state and thus cause it to spin up, which is very annoying. Interestingly, as the log shows, the resets happen at pretty regular intervals (i.e. one hour or half an hour), not randomly. An USB card reader seems to have the same issues, while another USB harddrive from a different manufactor works fine on the same PC. What could be causing this and how could I fix it?

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• WEP authentication suddenly failing in Ubuntu

  - by kellishaver

  I'm running Ubuntu 9.10 and after a recent reboot, I'm now unable to authenticate to wireless networks using WEP encryption. I can connect fine to open networks (no idea about WPA). When trying to connect via WEP, I'm continually prompted for the network key, which I know I have entered correctly (and should have been/is saved in my keyring anyway). Everything had been working fine until the reboot. No updates had been installed or configuration changes made. Hardware-wise, everything looks fine (http://pastebin.org/113777), and the fact that connecting to an open network works just fine leads me to think this is a software issue. I just don't know where to begin fixing it. Any insights would be greatly appreciated.

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• Set up Glassfish connection pool to talk to a database on a Ubuntu VPS

  - by Harry Pham

  On my Ubuntu VPS, i have a mysql server running and a Glassfish 3.0.1 Application Server running. And I am having a hard to have my GF successfully ping the database. Here is my GF set up Assume: x.y.z.t is the ip of my VPS Resource Type: javax.sql.ConnectionPoolDataSource User: root DatabaseName: scholar Url: jdbc:mysql://x.y.z.t:3306/scholar URL: jdbc:mysql://x.y.z.t:3306/scholar Password: xxxx PortNumber: 3306 ServerName: x.y.z.t Inside my glassfish3/glassfish/lib, I have my mysql-connector-java-5.1.13-bin.jar Inside the database, table mysql here is the result of the query select User, Host from user; +------------------+-----------+ | User | Host | +------------------+-----------+ | root | 127.0.0.1 | | debian-sys-maint | localhost | | root | localhost | | root | yunaeyes | +------------------+-----------+ Now from my machine, if I try to connect to this db via mysql browser (mysql client software), well I cant. Well from the table above, seem like it only allow localhost to connect to this db. Keep in mind that both my db and my GF are on the same VPS. Please help

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