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  • idle proccesses and high memory bad? uwsgi/django

    - by JimJimThe3rd
    I have a VPS with 256MB of ram. I'm running nginx, uwsgi and postgresql on Ubuntu 12.04 for a soon to be Django site. About 200MB of ram are being used despite the website not being active, the uwsgi processes seem to just be idling. Is this bad? I once heard that having a bunch of free memory isn't necessarily a good metric because it is possible that the memory in use can easily be freed up. I mean, it is possible that the server is storing commonly used "stuff" in case it is accessed but is more than happy to dump it if the ram is needed. But I'm really not sure, hence me asking this question. If it is bad I could set some of the application loading options for uwsgi like "cheap" or "idle" mode. Screenshot of my htop

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  • why i failed to configure openvpn, now i am an ordinary user, how to deal with this issue?

    - by hugemeow
    checking tap-windows.h presence... no checking for tap-windows.h... no checking whether TUNSETPERSIST is declared... yes checking for setcon in -lselinux... yes checking for pam_start in -lpam... no checking for OPENSSL_CRYPTO... yes checking for OPENSSL_SSL... yes checking for EVP_CIPHER_CTX_set_key_length... yes checking for ENGINE_load_builtin_engines... yes checking for ENGINE_register_all_complete... yes checking for ENGINE_cleanup... yes checking for ssl_init in -lpolarssl... no checking for aes_crypt_cbc in -lpolarssl... no checking for lzo1x_1_15_compress in -llzo2... no checking for lzo1x_1_15_compress in -llzo... no checking for PKCS11_HELPER... no checking git checkout... yes configure: error: libpam required but missing [mirror@innov openvpn]$ ./configure --help | grep libpam --enable-pam-dlopen dlopen libpam [default=no] C compiler flags for libpam LIBPAM_LIBS linker flags for libpam [mirror@xxx openvpn]$ ./configure --prefix=/home/mirror/build/ins/ins_vpn --disable-lzo error: libpam required but missing i just have no privilege to install the package named libpam, so can i build libpam and install it in home directory, then build openvpn based on it?

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  • apache2 slow responding (debian)

    - by baloo
    I'm running an apache2 2.2.9 webserver with modpython and mpm_worker_module. The current config for the mpm is ServerLimit 32 StartServers 10 MaxClients 800 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 0 The server has 1G of ram and a 100Mbit connection. Checking netstat -na | grep ESTABLISHED | wc -l gives me a number between 50 - 60. The load is about 1.0 Every pageload is also cached by memcached. I can't see why the server is so slow in responding to new connections, sometimes droping them completely? Also tried disabling iptables to make sure it's not because of a full state table or something like that. The only thing in dmesg is a lot of spam about "TCP: Treason uncloaked!"

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  • Installing GNU scientific library and linking to programme

    - by jack
    I am trying to install a statistical program which requires GNU Scientific Library (GSL). I have successfully installed GSL through the yum command, but my statistical program gives an error when I try to run make install. I think there is a linking problem. How can I solve it? $ sudo yum install gsl.x86_64 Installed: gsl.x86_64 0:1.15-3.fc16 Dependency Installed: atlas.x86_64 0:3.8.4-1.fc16 $ tar -xvzf prog.tgz $ cd prog $ make $ gcc -O3 -Wall -Wshadow -pedantic -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -DVER32 -I/opt/local/include/ -L/opt/local/lib/ -c -o prog.o prog.c In file included from prog.c:16:0: prog.h:7:30: fatal error: gsl/gsl_sf_gamma.h: No such file or directory compilation terminated. make: *** [prog.o] Error 1

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  • php processes owned by ppid 1 after X amount of time

    - by Kristopher Ives
    I have a CentOS server running WHM that uses FastCGI (mod_fcgid) running PHP 5.2.17 on Apache 2.0 with SuExec. When I start Apache it begins fine and serving requests. If I run ps on the terminal as root I see the php processes and they are owned by their httpd parent processes. After X amount of time - different from time to time, not much longer than a few hours typically - the server will begin spawning PHP jobs owned by the init process ID (1) Example of good listing: 12918 18254 /usr/bin/php 12918 18257 /usr/bin/php 12918 18293 /usr/bin/php 12918 18545 /usr/bin/php 12918 18546 /usr/bin/php 12918 19016 /usr/bin/php 12918 19948 /usr/bin/php Then later something like: 1 6800 /usr/bin/php 1 6801 /usr/bin/php 1 7036 /usr/bin/php 1 8788 /usr/bin/php 1 10488 /usr/bin/php 1 10571 /usr/bin/php 1 10572 /usr/bin/php The php processes running owned by (1) never get cleaned up. Why would these processes be running? We don't use setsid or anything beyond basic PHP in the code this server is running. Cheers & Thanks

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  • Convert KVM virtual machine to LXC container

    - by linkdd
    I have 2 virtual machines (with Debian, using KVM) with virtual hard drives: /srv/kvm/ssh.img /srv/kvm/www.img Both have 3 partitions (/, /home, swap). I want to convert them in a RootFS usable with LXC (in order to use LXC instead of KVM). The only solution I have for the moment is: create a new RootFS copy /home partition into it reproduce the same configuration into it But is there an automated way to do it

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  • monitoring changes in windows of screen while screen is detached

    - by gojira
    It is possible to monitor windows in screen (I mean the terminal multiplexer called screen) with Ctrl-a M. However, I am only aware of the notification when I am looking at any window. What I want, though, is to somehow also be notified if the screen in question has been detached with Ctrl-a d. I.e., I issue the command to monitor a window in screen, then detach that screen, now I want to get a notification if the monitor detects activity, in some form (a string in the bash I'm using, or an email, or anything). Is this possible, and if yes how?

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  • Can not boot CentOS VM using VirtIO in KVM

    - by Jake
    I converted qcow2 image to raw and changed I/O bus to VirtIO for a VM. now I can't boot that VM. I Installed VirtIO driver with following command: mkinitrd --with virtio_pci --with virtio_blk -f /boot/initrd-$(uname -r).img $(uname -r) and these are related kernel modules: virtio_balloon 11329 0 virtio_blk 11593 3 virtio_pci 11845 0 virtio_ring 8513 1 virtio_pci virtio 9541 3 virtio_balloon,virtio_blk,virtio_pci and this is what happens during boot-up. I also changed /boot/grub/device.map from "(hd0) /dev/sda" to "(hd0) /dev/vda" but problem still exists. any ideas how to fix this ? This is my default option to boot: title CentOS (2.6.18-308.13.1.el5) root (hd0,0) kernel /vmlinuz-2.6.18-308.13.1.el5 ro root=/dev/VolGroup00/LogVol00 initrd /initrd-2.6.18-308.13.1.el5.img

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  • Tar exclude not working?

    - by Andrew Fashion
    tar -cvf file.tar --exclude=thumbs/ \ --exclude=uploads_event/ \ --exclude=uploads_forum/ \ --exclude=uploads_admin/ \ --exclude=uploads_userpoints/ \ --exclude=uploads_group/ \ --exclude=up_old/ \ --exclude=uploads_user/ \ --exclude=uploads_wall/ \ directory_to_tar/ Do I have it wrong? Trying to tar entire directory but exclude all those directories and any files in those folders completely.

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  • email spam filering in bridging

    - by User4283
    I've a mail server, which handle multiple domains. Due to concern of spam and mail server performance. I've configured another machine which will be in bridging and mail server would be behind that it. How can i filter spam emails in bridging server without running any smtp services. Scenario Internet +------+ Spamfilter Server (in bridging mode) +---------+ MailServer SmartHost will work for outgoing email. In this scenario i can filter all incoming emails. There is also another option of DNS which i don't want to use.

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  • GNOME Screensaver Widgets

    - by darkfalcon
    Is there a way to add widgets to a Gnome screensaver? I think this can be done with KDE 4, but I've never liked KDE very much. I'm a programmer and comfortable with writing code if needed. I'd like to be able to: See the weather and forecast Control Rhythmbox Use a flash card widget for reviewing musical concepts The reason I want these on the screensaver is that I have login restrictions. I would like to be able to do a very limited subset of activities without having to log in.

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  • ubuntu: mumble 1.2.2 in Karmic

    - by Dan
    Karmic only has mumble 1.1.8, but if I want to connect to a 1.2 server I need to upgrade... So I would like to know how I can upgrade to mumble 1.2.2 without messing myself up for later when I upgrade to 10.04 and beyond... I just want a smooth transition into the next versions of mumble. Is there anyway to upgrade to this newer version and either keep it in the package manager or make it not interfere with the natural upgrades the program will later recieve from the package manager? Thanks, Dan

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  • How do I know if I have KMS enabled?

    - by Attila Oláh
    How can I check if KMS is enabled in my kernel? I've compiled mine with KMS radeon modeset defaulting to 1, but I still suspect that it is not enabled. EDIT: aatiis@aiur ~ $ dmesg | grep drm [drm] Initialized drm 1.1.0 20060810 [drm] Initialized radeon 1.33.0 20080528 for 0000:01:05.0 on minor 0 [drm] Setting GART location based on new memory map [drm] Loading RS780 CP Microcode [drm] Resetting GPU [drm] writeback test succeeded in 1 usecs EDIT 2: aatiis@aiur ~ $ glxinfo | grep render IRQ's not enabled, falling back to busy waits: 2 0 direct rendering: Yes OpenGL renderer string: Mesa DRI R600 (RS780 9612) 20090101 TCL aatiis@aiur ~ $ sudo grep -i kms /var/log/Xorg.0.log [ 57.201] (II) [KMS] drm report modesetting isn't supported.

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  • What is wrong with my Watcher (incron-like) daemon?

    - by eric01
    I have installed Watcher this way: both watcher.py and watcher.ini are located in /etc I also installed pyinotify and it does work when I use python -m pyinotify -v /var/www However, I want to use the daemon and when I start watcher.py, I get weird lines on my watcher.log (see below). I also included my watcher.ini file. Note: I have the latest version of Python. The watcher.py can be found here What is wrong with what I did? Also, do I really need pyinotify? Thanks a lot for your help watcher.ini: [DEFAULT] logfile=/var/log/watcher.log pidfile=/var/run/watcher.pid [job1] watch=/var/www events=create,delete,modify recursive=true command=mkdir /home/mockfolder ## just using this as test watcher.log: 2012-09-22 04:28:23.822029 Daemon started 2012-09-22 04:28:23.822596 job1: /var/www Traceback (most recent call last): File "/etc/watcher.py", line 359, in <module> daemon.start() File "/etc/watcher.py", line 124, in start self.run() File "/etc/watcher.py", line 256, in run autoadd = self.config.getboolean(section,'autoadd') File "/usr/lib/python2.7/ConfigParser.py", line 368, in getboolean v = self.get(section, option) File "/usr/lib/python2.7/ConfigParser.py", line 618, in get raise NoOptionError(option, section) ConfigParser.NoOptionError: No option 'autoadd' in section: 'job1'

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  • guest crash on long backup via rsync

    - by ToreTrygg
    I recently upgraded host to Ubuntu 9.10 with vmware server 2.0.2, i had two guest machine. One is a sme server i had several crash during a session of backup with rsync to another pc. Normal activities run regularly. The other guest is up without problem since 25 days. I found in the log a lot o f row like these Dec 20 05:29:27.445: vcpu-1| VLANCE: Ethernet0 skipped 2560 time(s) Dec 20 05:29:27.445: vcpu-1| VLANCE: 66 12 5 8 2 3 3 0 1 0 0 1 0 1 2 0 Dec 20 05:29:27.445: vcpu-1| VLANCE: 0 0 1 0 1 0 0 0 1 0 0 0 0 1 0 2452 Dec 20 05:29:27.651: vmx| ide0:0: Command WRITE(10) took 1.947 seconds (ok) Dec 20 05:29:37.945: vmx| ide0:0: Command WRITE(10) took 1.033 seconds (ok) when the vitual machine crash the log report, I paste here only some part to limit the lenght of the message Dec 27 01:48:05.686: Worker#2| Caught signal 6 -- tid 700 Dec 27 01:48:05.686: Worker#2| SIGNAL: eip 0x460422 esp 0xb124c024 ebp 0xb124c03 Dec 27 01:48:05.712: Worker#2| SymBacktrace12 00000000 eip 0x39d7ee in function clone in object /lib/tls/i686/cmov/libc.so.6 loaded at 0x2d1000 Dec 27 01:48:05.719: Worker#2| Unexpected signal: 6. Dec 27 01:48:05.720: Worker#2| Core dump limit is 0 KB. Dec 27 01:48:05.762: Worker#2| Child process 10455 failed to dump core (status 0 x6). Dec 27 01:48:05.762: Worker#2|SymBacktrace13 00000000 eip 0x39d7ee in function clone in object /lib/tls/i686/cmov/libc.so.6 loaded at 0x2d1000 Dec 27 01:48:05.779: Worker#2|Msg_Post: Error Dec 27 01:48:05.780: Worker#2|http://msg.log.error.unrecoverable VMware Server unrecoverable error: (Worker#2) Dec 27 01:48:05.780: Worker#2|Unexpected signal: 6. I have no idea how to solve the problem with this installation, I think to dowgrade the host to a version more compatible with vmware server 2. I read a lot of post about difficult of installation I think the problem of compilation during install could be related to my problem. Excuse me if the post isn't very clear, it's my first post here. Any help or suggest will be appreciated. Thanks

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  • Bad font anti-aliasing in Ubuntu

    - by Juliano
    I'm switching from Fedora 8 to Ubuntu 9.04, and I can't seem to get it to get a good font anti-aliasing to work. It seems that Ubuntu's fontconfig tries to keep characters in integral pixel widths. This makes text more difficult to read, when 1 pixel is too thin and 2 pixels is too thick. Check the image below. In Fedora, when fontconfig anti-aliasing is enabled, fonts have their thickness proportional to the font size. Below, the thickness is different for 8, 9 and 10pt sizes. In Ubuntu, on the other hand, even when anti-aliasing is enabled, all 8, 9 and 10pt sizes have 1 pixel thickness. This makes reading larges amount of text difficult. I'm using the very same home directory, and I already checked that X resources are the same in both systems: ~% xrdb -query | grep Xft Xft.antialias: 1 Xft.dpi: 96 Xft.hinting: 1 Xft.hintstyle: hintfull Xft.rgba: none GNOME settings: ~% gconftool-2 -a /desktop/gnome/font_rendering antialiasing = grayscale hinting = full dpi = 96 rgba_order = rgb So, the question is: What should I change in the new box (Ubuntu) in order to get anti-aliasing like in the old box (Fedora)?

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  • Starting my own server - basic recommendations and questions [closed]

    - by Ilia Rostovtsev
    Possible Duplicate: Can you help me with my capacity planning? I'm planning to start my own high-performance server and then use collocation services for keeping it up and running. I'm planning to USE it for processing videos and keeping big video site up! (using FFMpeg, MENcoder and etc.) I just need recommendations on whether listed hardware is good enough and will work together well and fast enough. Do I need anything else (missed something). I remember about CPU coolers though! ;) I'm planning to use SSD drives so please tell me if it's going to work just as regular HDDs (but much faster)? Are they going to be used as RAID (is this possible for SSDs)? Here is what I would like to get: Intel ® Server System SR1600URHSR (Urbanna) or Intel® Server System SR1695WBAC 2 x Intel Xeon X5650 4 x 16Gb DDR-III 1333MHz Kingston ECC Reg (KVR13R9D4/16) 3 x (or maybe 4x) 480Gb SSD Intel 520 Series (SSDSC2CW480A3K5) Which server system would be better? Is listed hardware new/good enough and worth buying it at the moment? Should I probably take a look at something slightly more expensive but more up to date and powerful, may be? After all as software I would like to use CentOS 6 64 bit + WHM/CPanel? Any other suggestions on maybe cheaper and same/more powerful server management system but WHM? What most important points to keep in mind when starting/maintaining your own server?

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  • Stop Search param in directories by grep immediately after param match

    - by yael
    hi friends I use the following command to find under /var some param in my script grep -R "param" /var/* 2/dev/null |grep -wq "param" my problem is that: after grep find the param in file grep continue to search until all searches under /var/* will completed How to perform stop immediately after grep match the param word For example when I run the: grep -R "param" /var/* 2/dev/null |grep -wq "param" grep find the param after one second. But grep continue to Search other same param on other files and its take almost 30 seconds How to stop the grep immediately after param match? THX

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  • Empty /var/log after running cron bash script

    - by Ortix92
    I wrote a little bash script and all of a sudden my /var/log folder is completely empty except for the log I created for the bash script. This is the script I'm running every hour with cron: #!/bin/bash STL_DIR=/path/to/some/folder/i/hid LOGFILE=/var/log/stl_upload.log now=`date` echo "----------Start of Transmission----------" 2>&1 | tee -a $LOGFILE echo "Starting transfer at $now" 2>&1 | tee -a $LOGFILE rsync -av -e ssh $STL_DIR [email protected]:/users/path/folder 2>&1 | tee -a $LOGFILE echo "----------End of transmission----------" 2>&1 | tee -a $LOGFILE printf "\n" 2>&1 | tee -a $LOGFILE I want to be clear that I'm not 100% certain this is related to the empty logs folder. So if anyone could give me a pointer as to what could be going on about the reason why my log folder is empty, that'd be great.

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  • Monitor open files limits, etc

    - by marcog
    We've been hitting the max open files limit on a few services recently. There are also a bunch of other limits in place. Is there a way to monitor how close processes are to these limits so we can be alerted when it's time to either up the limits or fix the root cause? On the same note, is it possible to view a log of these events so we know when a crash occurs it's because of hitting one of these limits?

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  • iptables rule to submit packets matching a specific negative rule

    - by Aditya Sehgal
    I am using netfilter_queue to pick up certain packets from the kernel and do some processing on them. To, the netfilter queue, I need all packets from a particular source except UDP packets with src port 2152 & dst port 2152. I try to add the iptable rule as iptables -A OUTPUT ! s 192.168.0.3 ! -p udp ! --sport 2905 ! --dport 2905 -j NFQUEUE --queue-num 0 iptables throw up an error of Invalid Argument. Querying dmesg, I see the following error print ip_tables: udp match: only valid for protocol 17 I have tried the following variation with the same error thrown. iptables -A OUTPUT ! s 192.168.0.3 ! -p udp --sport 2905 --dport 2905 -j NFQUEUE --queue-num 0 Can you please advise on the correct usage of the iptables command for my case.

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