Search Results

Search found 45752 results on 1831 pages for 'ubuntu linux'.

Page 651/1831 | < Previous Page | 647 648 649 650 651 652 653 654 655 656 657 658  | Next Page >

• Why is MySQL unable to open hosts.allow/hosts.deny?

  - by HonoredMule

  I have a storage server running Nexenta (OpenSolaris kernel, Ubuntu userspace) with MySQL on top of a ZFS storage array, using innodb_file_per_table and ulimit -n set to 8K. mysqltuner.pl confirms the file limit and claims there are 169 files. The following command: pfiles `fuser -c / 2>/dev/null indicates one mysqld process having 485 file/device descriptors (and they're almost all for files) so I don't know how reliable the tuning script is, but it is still way less than 8K and this list also finds no other process which is close to it's limit. The global total number of descriptors in use is around 1K. So what can cause mysqld to be constantly streaming the following errors? [date] [host] mysqld[pid]: warning: cannot open /etc/hosts.allow: Too many open files [date] [host] mysqld[pid]: warning: cannot open /etc/hosts.deny: Too many open files Everything appears to actually be operating fine, but the issue is constantly flooding the admin console and starts right away on a fresh boot (not only reproducible, but always from mysqld and always the hosts files, whose permissions are the default -rw-r--r-- 1 root root). I could, of course, suppress it from the admin console but I'd rather get to the bottom of it and still allow mysqld warnings/errors to reach the admin console. EDIT: not only is the actual file descriptor well within sane limits, the issue also persists (with immediate appearance) even with the file limit raised to 65535 and always only on hosts.allow/deny.

  Read the article

• Configure X connections over TCP without using an X connection

  - by Darren Cook

  I want to run a GUI application on a remote machine I only have ssh access to. I don't need to, or want to, see the GUI window. (I know I could use something like ssh -C -X remote_server if I wanted the GUI to be on my client.) I know X is running on the remote machine, as ps shows this: root ... /usr/bin/Xorg :0 -br -audit 0 -auth /var/gdm/:0.Xauth -nolisten tcp vt7 I set DISPLAY=:0.0 but I then get "Xlib: connection to ":0.0" refused by server" when I try to use it. At Get remote x display working in linux without ssh tunneling and Xserver doesn't work unless DISPLAY=0.0 I see the advice to use gdmsetup to allow X to listen on TCP. But, gdmsetup is a GUI application! And trying to run it over ssh -X did not work ("X11 connection rejected because of wrong authentication"). So, is there a text file I can edit to remove -nolisten? And, after editing it, how do I safely restart X, remotely? (There is other stuff running on this machine, so requesting a reboot is possible, but undesirable.) If not, should gdmsetup be able to run over ssh and I should persevere in that direction? UPDATE: I had to do the ssh -X session as root (ssh as a normal user, then sudo or su, does not work.) So, I did the edit with gdmsetup. I then restarted X with gdm-restart. I've also done xhost + from that ssh -X session. The ps line no longer shows the -nolisten tcp part. But still no luck connecting to it, with either DISPLAY=:0 or DISPLAY=localhost:0

  Read the article

• Fix stubborn 'Setting locale failed.'

  - by user60129

  I have a very stubborn, well-known locale error on Ubuntu 9.10: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LC_TIME = "custom.UTF-8", LANG = "en_US.UTF-8" Tried the following: Added LANG=en_US.UTF-8 and LC_ALL=en_US.UTF-8 to /etc/environment Run apt-get install --reinstall locales (error: perl: warning: Falling back to the standard locale ("C"). /usr/bin/mandb: can't set the locale; make sure $LC_* and $LANG are correct) Run sudo dpkg-reconfigure locales. Result: Cannot set LC_ALL to default locale: No such file or directory, and then updates locales all locales including en_US.UTF-8 sudo locale-gen updates all locales successfully, including en_US.UTF-8 sudo locale-gen un_US en_US.UTF-8 gives no error nor other output In /etc/default/locale it says LANG="en_US.UTF-8" echo $LANG gives en_US.UTF-8 /var/lib/locales/supported.d/local says en_US.UTF-8 UTF-8 locale -a gives me: C en_AG en_AU.utf8 en_BW.utf8 en_CA.utf8 en_DK.utf8 en_GB.utf8 en_HK.utf8 en_IE.utf8 en_IN en_NG en_NZ.utf8 en_PH.utf8 en_SG.utf8 en_US.utf8 en_ZA.utf8 en_ZW.utf8 POSIX So well... I am pretty much out of options I can think of. Anybody any idea?? Thanks!

  Read the article

• iptables logging not working?

  - by vps_newcomer

  OS: Ubuntu 10.04 Logging daemon: rsyslog For some reason i'm not getting any iptables logs, even thought i don't look through them very often i'd still like to get it working for the sake of it working XD Here is my /etc/ryslog.d/iptables.conf :msg, contains, "[IPTABLES]" -/var/log/iptables.log & ~ My iptables logging prefix is "[IPTABLES]" followed by whatever else (example [IPTABLES] Denied xyz) the /var/log/iptables.log file is being created, however its not getting any entries. I can see the logging entries in dmesg but not in syslog or messages. Whats going on? EDIT: My iptables logging rules: # logging limit LoggingLimit=5/min LoggingPrefix=IPTABLES # Logging chain iptables -N LOG_REJECT iptables -A LOG_REJECT -j LOG # join INPUT to LOG_REJECT iptables -A INPUT -j LOG_REJECT # logging iptables -A LOG_REJECT -p tcp -m limit --limit $LoggingLimit -j LOG --log-prefix "$LoggingPrefix Denied TCP: " #--log-level 7 iptables -A LOG_REJECT -p udp -m limit --limit $LoggingLimit -j LOG --log-prefix "$LoggingPrefix Denied UDP: " #--log-level 7 iptables -A LOG_REJECT -p icmp -m limit --limit $LoggingLimit -j LOG --log-prefix "$LoggingPrefix Denied ICMP: " #--log-level 7 Update: I found a thread that has the same symptoms as i do, apparently is a kernel bug. I am using a VPS so could anyone point me on how to upgrade my kernel or apply a workaround? I couldn't find a 2.6.34 kernel listed in apt-cache. Thread: http://www.linode.com/forums/viewtopic.php?t=5533

  Read the article

• upstart scripts: run a task after networking goes up

  - by The Journeyman geek

  I'm working on moving my current server setup to newer hardware, and migrating from ubuntu karmic koala to lucid lynx. Currently i'm using gw6c (compiled from the gogo6 website, as opposed to the version from the repositories) to get ipv6 access for my systems. On the karmic koala system, i used simple init.d script to get the ipv6 client started #! /bin/sh /usr/local/gw6c/bin/gw6c -f /usr/local/gw6c/bin/gw6c.conf I figured since this runs at any runlevel, it should translate to respawn console none start on startup stop on shutdown script exec /usr/local/gw6c/bin/gw6c -f /usr/local/gw6c/bin/gw6c.conf emit free6_ipv6_started end script this works fine started from initctrl, but it apparently fails to start when it boots. - its status being stop/waiting. It works fine (and respawns) when started otherwise.Any ideas on where i'm going wrong, and what would be the appropriate 'start on' arguement? EDIT: the exact error is 'init: gw6c main process (xxx) ended with status 8' followed by the process respawning , with xxx being a PID i suspect. I'm also half suspecting this is cause gw6c starts before networking does, and i need my eth0 up before gw6c is

  Read the article

• PXELinux and compressed kernels/images

  - by Yvan JANSSENS

  Is it possible to boot compressed kernels with a compressed initrd with PXELinux? First, a little background: We created a custom Linux distro, for diskless OpenCL computing nodes. We want those nodes to fetch their OS from the network. Our Distro is composed out of a kernel (duh) and a large initrd which is loaded into RAM and everything is executed from there. We chose to run everything off the initrd for two reasons: NFS was not an option to serve the filesystem's extra contents Fast file access from RAM. No persistent storage needed, data and config is pulled dynamically through a SOAP service. Now our initrd is about 450M in size. At our network speeds, it takes about two to three minutes to load a single client. Will compression speed up te downloading, and if yes, which one should be used? Is LZMA supported by PXELinux, or do we need to stick to bzip2 or gzip? Because of the 2-3 minutes loading time, booting 15 nodes over the same network link takes quite a lot of time. We decided not to use hard drives or CD/DVD drives, for financial reasons (cheapest HDD @ €30 times 15 is a lot of money saved ;-) ) So, our question is: what compression options are available for this setup? And how do we do this? Thank you for your time! Yvan Janssens

  Read the article

• Sound doesn't work anymore after replacing RAM

  - by thejh

  Hello, today, I replaced one old RAM module with two newer, bigger ones, but now, the sound doesn't seem to work anymore. Already ran alsaconf and it didn't help. Output of lspci for the audio device: 00:07.0 Audio device: nVidia Corporation MCP67 High Definition Audio (rev a1) Subsystem: Giga-byte Technology Device a002 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 (500ns min, 1250ns max) Interrupt: pin A routed to IRQ 21 Region 0: Memory at f5100000 (32-bit, non-prefetchable) [size=16K] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Queue=0/0 Enable- Address: 0000000000000000 Data: 0000 Masking: 00000000 Pending: 00000000 Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fixed+ Kernel driver in use: HDA Intel Kernel modules: snd-hda-intel The audio device is onboard and has six configurable outputs, two or so are also capable of being an input (if I remember it correctly), but I don't know how to control it under linux. Does somebody know how/whether replacing the RAM could be related to my problem and/or how to fix it?

  Read the article

• Problems setting up VLC Sever/client streaming

  - by Ayos

  I'm trying to set up a Linux machine as the server and a Windows XP machine as the client. Both machines are connected to the same local network via a Wi-Fi router. I setup the stream with the following properties : http stream port 8080 play locally And not much else. No firewall on the windows client(Windows firewall is disabled) When I try to open network stream via the client machine(Using VLC or Windows Media Player) I get the following errors: Media Player error code : 0xC00D11B3: Encountered a network Problem. VLC Console: main warning: connection timed out access_mms error: cannot connect to 192.168.1.3:8080 main debug: no access module matching "http" could be loaded main debug: TIMER module_need() : 12625.810 ms - Total 12625.810 ms / 1 intvls (Avg 12625.809 ms) main error: open of `http://192.168.1.3:8080' failed main debug: dead input main debug: repeating item main debug: starting playback of the new playlist item main debug: resyncing on http://192.168.1.3:8080 main debug: http://192.168.1.3:8080 is at 0 main debug: creating new input thread main debug: Creating an input for 'http://192.168.1.3:8080' main debug: using timeshift granularity of 50 MiB, in path 'C:\DOCUME~1\Accer\LOCALS~1\Temp' main debug: `http://192.168.1.3:8080' gives access `http' demux `' path `192.168.1.3:8080' main debug: creating demux: access='http' demux='' location='192.168.1.3:8080' file='\\192.168.1.3:8080' main debug: looking for access_demux module: 0 candidates main debug: no access_demux module matched "http" main debug: TIMER module_need() : 0.461 ms - Total 0.461 ms / 1 intvls (Avg 0.461 ms) main debug: creating access 'http' location='192.168.1.3:8080', path='\\192.168.1.3:8080' main debug: looking for access module: 2 candidates access_http debug: http: server='192.168.1.3' port=8080 file='' main debug: net: connecting to 192.168.1.3 port 8080 qt4 debug: IM: Deleting the input main debug: TIMER input launching for 'http://192.168.1.3:8080' : 13397.979 ms - Total 13397.979 ms / 1 intvls (Avg 13397.978 ms) qt4 debug: IM: Setting an input Need Help. Thanks in advance.

  Read the article

• Why am I unable to mount my USB drive (unknown partition table)?

  - by Pat

  I'm a real newbie to linux. Anyway the problem is that my USB doesn't get recognized anymore which is really annoying because I need information from it. I've read like a zillion threads how to manually mount it but I really can't it to work. I hope it's just some easy, stupid problem where any of you could help me out quickly.. Here is the syslog: kernel: [ 6872.420125] usb 2-2: new high-speed USB device number 11 using ehci_hcd mtp-probe: checking bus 2, device 11: "/sys/devices/pci0000:00/0000:00:1d.7/usb2/2-2" kernel: [ 6872.556295] scsi8 : usb-storage 2-2:1.0 mtp-probe: bus: 2, device: 11 was not an MTP device kernel: [ 6873.558081] scsi 8:0:0:0: Direct-Access SanDisk Cruzer 8.01 PQ: 0 ANSI: 0 CCS kernel: [ 6873.559964] sd 8:0:0:0: Attached scsi generic sg3 type 0 kernel: [ 6873.562833] sd 8:0:0:0: [sdc] 15682559 512-byte logical blocks: (8.02 GB/7.47 GiB) kernel: [ 6873.564867] sd 8:0:0:0: [sdc] Write Protect is off kernel: [ 6873.564878] sd 8:0:0:0: [sdc] Mode Sense: 45 00 00 08 kernel: [ 6873.565485] sd 8:0:0:0: [sdc] No Caching mode page present kernel: [ 6873.565495] sd 8:0:0:0: [sdc] Assuming drive cache: write through kernel: [ 6873.568377] sd 8:0:0:0: [sdc] No Caching mode page present kernel: [ 6873.568387] sd 8:0:0:0: [sdc] Assuming drive cache: write through kernel: [ 6873.574330] sdc: unknown partition table kernel: [ 6873.576853] sd 8:0:0:0: [sdc] No Caching mode page present kernel: [ 6873.576863] sd 8:0:0:0: [sdc] Assuming drive cache: write through kernel: [ 6873.576871] sd 8:0:0:0: [sdc] Attached SCSI removable disk Thanks in advance

  Read the article

• How to track things that SHOULD happen, but might not have

  - by Kamiel Wanrooij

  I am running into a couple of issues with some applications we've deployed and maintain. I have the feeling we have approached this with some anti-patterns up to now, but I would like to see how to make this more flexible and stable. In one situation, we have a server at a client which pushes data to us to parse every night (yes, Windows Task Scheduler). This is highly unstable however, so once every month this doesn't happen because of reasons out of our control. This heavily impacts our business since we run with stale data in that situation. In another scenario we have a lot of background job processes that should be running. We already keep them up using bluepill ( http://www.github.com/arya/bluepill ) but obviously restarts happen, both automatically and manually, and people forget things or systems mess up. What I would like to track is events that should occur or should be available. Like the existence of a process, the execution of a program, or the creation/age of a file, and track it when they don't happen or exist. We develop most things in Ruby on Rails, use NewRelic, Bluepill and Munin, and run on Ubuntu. I've been toying around with counting ps aux | grep processname | wc -l in Munin scripts, or capturing the age of a file and raising alerts over 24-26 hours, stuff like that. Is there better tooling to track things that should happen, and raise alerts if they don't? P.S. I know some things are suboptimal, like manually having to define bluepill for applications and then forgetting to do so. The same goes for the push based approach of the first application, a dedicated daemon that manages that on the client side that we control and can track its connection to us might be a much better solution.

  Read the article

• How to configure iptables to use apt-get in a server?

  - by segaco

  I'm starting using iptables (newbie) to protect a linux server (specifically Debian 5.0). Before I configure the iptables settings, I can use apt-get without a problem. But after I configure the iptables, the apt-get stop working. For example I use this script in iptables: #!/bin/sh IPT=/sbin/iptables ## FLUSH $IPT -F $IPT -X $IPT -t nat -F $IPT -t nat -X $IPT -t mangle -F $IPT -t mangle -X $IPT -P INPUT DROP $IPT -P OUTPUT DROP $IPT -P FORWARD DROP $IPT -A INPUT -i lo -j ACCEPT $IPT -A OUTPUT -o lo -j ACCEPT $IPT -A INPUT -p tcp --dport 22 -j ACCEPT $IPT -A OUTPUT -p tcp --sport 22 -j ACCEPT $IPT -A INPUT -p tcp --dport 80 -j ACCEPT $IPT -A OUTPUT -p tcp --sport 80 -j ACCEPT $IPT -A INPUT -p tcp --dport 443 -j ACCEPT $IPT -A OUTPUT -p tcp --sport 443 -j ACCEPT # Allow FTP connections @ port 21 $IPT -A INPUT -p tcp --sport 21 -m state --state ESTABLISHED -j ACCEPT $IPT -A OUTPUT -p tcp --dport 21 -m state --state NEW,ESTABLISHED -j ACCEPT # Allow Active FTP Connections $IPT -A INPUT -p tcp --sport 20 -m state --state ESTABLISHED,RELATED -j ACCEPT $IPT -A OUTPUT -p tcp --dport 20 -m state --state ESTABLISHED -j ACCEPT # Allow Passive FTP Connections $IPT -A INPUT -p tcp --sport 1024: --dport 1024: -m state --state ESTABLISHED -j ACCEPT $IPT -A OUTPUT -p tcp --sport 1024: --dport 1024: -m state --state ESTABLISHED,RELATED -j ACCEPT #DNS $IPT -A OUTPUT -p udp --dport 53 --sport 1024:65535 -j ACCEPT $IPT -A INPUT -p tcp --dport 1:1024 $IPT -A INPUT -p udp --dport 1:1024 $IPT -A INPUT -p tcp --dport 3306 -j DROP $IPT -A INPUT -p tcp --dport 10000 -j DROP $IPT -A INPUT -p udp --dport 10000 -j DROP then when I run apt-get I obtain: core:~# apt-get update 0% [Connecting to ftp.us.debian.org] [Connecting to security.debian.org] [Conne and it stalls. What rules I need to configure to make it works. Thanks

  Read the article

• Help with routing table

  - by user68752

  I have tried to find the answer to my question but not really found a clean and easy solution. I have a box (Ubuntu headless 10.04.1 server, with one Ethernet port) on LAN behind a router (running m0n0wall), that I have successfully installed a PPTP device (ppp0) on, this is working flawlessly (following this link) The thing is I want this box to route all it's internet traffic through the VPN tunnel (ppp0 device) but also being able to access the local LAN on 192.168.1.* subnet. I've succeeded a bit with this, but my problem right now is that I have port forwards (e.g. SSH) done in the m0n0wall pointing to this specific box which forces me to do "add routes" to all boxes that want to access this machine through this specific port. For instance a machine with ip xyz.xyz.xyz.xyz needs to have a static route setup in the routing table on the box to be able to access the box. This is the result of route -n xxx.xxx.137.2 192.168.1.1 255.255.255.255 UGH 0 0 0 eth0 xxx.xxx.137.2 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 yyy.yyy.0.0 192.168.1.1 255.255.0.0 UG 0 0 0 eth0 0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 ppp0 Where xxx is the IPs provided from VPN server. yyy.yyy.0.0 is a net that i want to have access to the box, without this I can't access the box from outside the LAN (via port-forwards done in router software, m0n0wall) is there away round this ugly solution?

  Read the article

• How should I configure backup of my server?

  - by ed209

  I have just rented a dedicated server. If it helps this is the config I have: CPU1 Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz (Cores 8) RAM 15975 MB Disk /dev/sda doesn't contain a valid partition table (=> /dev/sda doesn't) Disk /dev/sdc doesn't contain a valid partition table (=> /dev/sdc doesn't) Disk /dev/sdb doesn't contain a valid partition table (=> /dev/sdb doesn't) Disk /dev/sda: 120.0 GB (=> 114 GIB) Disk /dev/sdc: 3000.6 GB (=> 2861 GIB) Disk /dev/sdb: 3000.6 GB (=> 2861 GIB) /dev/sda is a 120GB SSD. This is where I have Ubuntu/lamp installed. It's the drive that will run my site. With the account I got two other drives of 3000GB each which I really don't need but they came with the account. I figured I could use these to back up my main 120gb drive. So a couple of things I wondered were: Should I use these for backups? How should I back up. The data I want to back up is a user uploads directory full of images and the database. Everything else is either in a code repo or backed up some other way. For example, it would be nice to know there is a disk image of the 120gb drive somewhere that I can copy over should there be any problems but equally I don't mind doing a fresh install of all the software and copying over just the images and database dump. Thanks for your advice! (also, happy to not use the two other drives and backup elsewhere if it's more sensible)

  Read the article

• Running Solr on VPS problem

  - by Camran

  I have a VPS with Ubuntu OS. I run solr om my local machine (windows xp laptop) just fine. I have configured Jetty, and Solr just the same way as on my computer, but on the server. I have also downloaded the JRE and installed it on the server. However, whenever I try to run the start.jar file, the PuTTY terminal shows a bunch of text but gets stuck. I could pase the text here but it is very long, so unless somebody wants to see it I wont. Also, I cant view the solr admin page at all. Does anybody have experience in this kind of problem? Maybe java isn't correctly installed? It is a VPS so maybe installation is different. Thanks UPDATE: These are the last lines from the terminal, in other words, this is where it stops every time: INFO: [] webapp=null path=null params={event=firstSearcher&q=static+firstSearcher+warming+query+from+solrconfig.xml} hits=0 status=0 QTime=9 May 28, 2010 8:58:42 PM org.apache.solr.core.QuerySenderListener newSearcher INFO: QuerySenderListener done. May 28, 2010 8:58:42 PM org.apache.solr.handler.component.SpellCheckComponent$SpellCheckerListener newSearcher INFO: Loading spell index for spellchecker: default May 28, 2010 8:58:42 PM org.apache.solr.core.SolrCore registerSearcher INFO: [] Registered new searcher Searcher@63a721 main Also you should know that I installed jetty by just dragging the folders from my HD to the VPS server.

  Read the article

• Relinking a deleted file

  - by mbac32768

  Sometimes people delete files they shouldn't, a long-running process still has the file open, and recovering the data by catting /proc/<pid>/fd/N just isn't awesome enough. Awesome enough would be if you could "undo" the delete by running some magic option to ln that would let you re-link to the inode number (recovered through lsof). I can't find any Linux tools to do this, least with cursory Googling. What do you got, serverfault? EDIT1: The reason catting the file from /proc/<pid>/fd/N isn't awesome enough is because the process which still has the file open is still writing to it. A delete removes the reference to the inode from the filesystem namespace. What I want is a way of re-creating the reference. EDIT2: 'debugfs ln' works but the risk is too high since it frobs raw filesystem data. The recovered file is also crazy inconsistent. The link count is zero and I can't add links to it. I'm worse off this way since I can just use /proc/<pid>/fd/N to access the data without corrupting my fs.

  Read the article

• How can see what processes makes my server slow?

  - by Steven

  All my websites on my server are extremely slow or not loading at all. Even server admin (Plesk) will not load some times. There's been no changes to the sites for the last coupple of months. How can I see what processes is making my server slow? My environment looks like this: Server: VPS running Linux 2.8.x OS: Centos 5 Manage interface: Plesk 9.x Memmory: 1024MB CPU: 2.2GHz My websites run on PHP and MySQL. I finally managed to telnet (Putty + SSH) in to my server. Running top did not show any processes using more than max 2% CPU and none were using exesive memmory. I also got a friend to install a program that checks the core files, and all seemed fine. So I'm leaning towards network issues or some other server malfunction. But I'm not able to find out what can be wrong. Here are some answers to Sean Kimball: I don't run mail services on my server yet There are noe specific bandwidth peaks. Prefork looks like this <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 20 ServerLimit 256 MaxClients 256 MaxRequestsPerChild 4000 </IfModule> Not sure what you mean with DNS question. But I think it's up and running. There are no processes running wild Where can I find avarage load? Telnet is disabled and I have to log in using SSH :)

  Read the article

• Mysql Query - That Is Returning Blatanty Incorrect Result

  - by user866190

  I am building a VPS node that is running Ubuntu 10.10LTS, Apache2, Mysql 5.1 and php5. I could not log in to my website admin through the browser, even though I am using the correct login details. So I logged in from the command line to check the results. When I run this query I get expected results: mysql> select * from users; +----+----------+-----------------------+----------+ | id | username | email | password | +----+----------+-----------------------+----------+ | 1 | myUserName | [email protected] | myPassword | +----+----------+-----------------------+----------+ And the same goes for this query: mysql> select * from users where id = 1; +----+----------+-----------------------+----------+ | id | username | email | password | +----+----------+-----------------------+----------+ | 1 | myUserName | [email protected] | myPassword | +----+----------+-----------------------+----------+ 1 row in set (0.00 sec) But when I run this query I get this 'unexpected response': mysql> select * from users where username = 'myUserName' and password = 'myPassword'; Empty set (0.00 sec) I am not sure why this is happening. Any help would be greatly appreciated. BTW.. I will be encrypting the user details but for now I just want to get it set up. Please help, Thanks

  Read the article

• mysqldump isn't able to export a specific database, phpMyAdmin crashes

  - by Devils Child

  I'm experiencing problems with a database on my server (Note: All other databases work fine). Once I try to export it with mysqldump I get this error: # mysqldump -u root -pXXXXXXXXX databasename > /root/databasename.sql mysqldump: Couldn't execute 'show table status like 'apps'': Lost connection to MySQL server during query (2013) Also, phpMyAdmin throws an error when selecting this database and immediately logs out. However, the web site which uses this database works fine. I can also execute SELECT statements on the table named "apps" from the MySQL shell. I tried restarting the MySQL daemon as well as REPAIR DATABASE and REPAIR TABLE but the problem still persists. I had this problem before, then it disappeared somehow without me doing anything to resolve the issue. Now, the problem is back and I'm simply unable to create a backup of this database. Used software Debian 6.0.7 x64 MySQL 5.1.66-0 MySQL Version: mysql> SHOW VARIABLES LIKE "%version%"; +-------------------------+-------------------+ | Variable_name | Value | +-------------------------+-------------------+ | protocol_version | 10 | | version | 5.1.66-0+squeeze1 | | version_comment | (Debian) | | version_compile_machine | x86_64 | | version_compile_os | debian-linux-gnu | +-------------------------+-------------------+

  Read the article

• How to copy VirtualBox VDI contents to a partition and dual boot the OS from it?

  - by Calmarius

  I'm a Linux user but I keep a compressed Windows XP ISO with me on a pen drive for the case I absolutely need Windows to do something. This works in VirtualBox most of the time. But now I want to play some games, so I would like to run the Windows image natively. My computer don't have CD drive so cannot just burn the ISO and make an install normally. What I trying to do is moving the installed Windows image to a physical NTFS partition on my HDD and set up GRUB to let me dual boot it. I found many tutorials that deal with making VDI to physical drive. But they assume I want to overwrite my entire drive. Moving the raw disk image with dd to the partition resulted in a corrupt partition. I also tried the VMDK trick to use that empty partition and install the Windows on it. Although the text mode phase of the installation finishes without problems, the VM won't work, either crashes and keeps rebooting or just immediately or freezes (depending on how I created the VMDK, with -rawdisk /dev/sda3 or -rawdisk /dev/sda -partition 3).

  Read the article

• What is the --daemon option?

  - by Pascal Dimassimo

  I was installing Solr with Jetty using these instructions. Basically, those instructions made you download the Jetty startup script and copy it to /etc/init.d/jetty. But it was not working. Each time I was starting Jetty, I had a "FAILED" message and nothing to understand why it was happening. I decided to open up the /etc/init.d/jetty script to understand what was happening. I saw that this script was using start-stop-daemon to launch jetty. After a couple of time of debugging, I discovered that removing the --daemon option at the end of the start-stop-daemon call was fixing my problem. I did a couple of research and discovered that this guy had the same problem and resolved it like I did: my removing the --daemon option. What is weird is that the switch does not seem to be specific to start-stop-daemon, because it is not documented in the man page. Also, I've seen it used for other commands. So what is that --daemon option doing? And why removing it resolved my problem? Note that I am working on Ubuntu 10.04.2 LTS.

  Read the article

• Is there a way to use VirtualBox without using it's resource registry?

  - by Catskul

  Summary VirtualBox seems to want everything to be "registered" which makes it much more annoying to work with on the command line. I'm attempting to create an automated script which will create, move, start, stop, and destroy virtual machines and virtual disks. Requiring registration will complicate the task for the following reasons. leaves state information around that can cause unpredicted edgecases causing scripts to fail. creates potential name space collisions for multiple process creating VMs with the same name moving/copying resources on the same machine is more complicated because references in the registry need to be updated copying resources (disk + vm combination) to another machine require reconfiguration once they reach their target machine, and require the transfer of extra meta data to do the reconfiguration. If something unexpectedly fails, and an unregister thus fails to happen, left over configuration information can cause problems in subsequent runs. Use Case My specific use case is for a continuous integration server which creates and destroys VMs and Disk images potentially with the same name, and would require more logic to deal with the registry's statefulness. Imaginary Example It seems that I should just be able to for example (using some imaginary and/or incorrect commands): mkdir foobar customdiskimg_script ./foo/foo.vdi vboxmanage createvm --name "foo" --ostype Linux --basefolder ./foo/foo.xml vboxmanage storagectl ./foo/foo.xml --name foo --add ide vboxmanage storageattach --storagectl foo --medium ./foo/foo.vdi ./foo/foo.xml vboxmanage startvm ./foo/foo.xml TLDR Is there a way to use virtualbox without "registering" harddisks and VMs?

  Read the article

• Why is my rsync so slow?

  - by iblue

  My Laptop and my workstation are both connected to a Gigabit Switch. Both are running Linux. But when I copy files with rsync, it performs badly. I get about 22 MB/s. Shouldn't I theoretically get about 125 MB/s? What is the limiting factor here? EDIT: I conducted some experiments. Write performance on the laptop The laptop has a xfs filesystem with full disk encryption. It uses aes-cbc-essiv:sha256 cipher mode with 256 bits key length. Disk write performance is 58.8 MB/s. iblue@nerdpol:~$ LANG=C dd if=/dev/zero of=test.img bs=1M count=1024 1073741824 Bytes (1.1 GB) copied, 18.2735 s, 58.8 MB/s Read performance on the workstation The files I copied are on a software RAID-5 over 5 HDDs. On top of the raid is a lvm. The volume itself is encrypted with the same cipher. The workstation has a FX-8150 cpu that has a native AES-NI instruction set which speeds up encryption. Disk read performance is 256 MB/s (cache was cold). iblue@raven:/mnt/bytemachine/imgs$ dd if=backup-1333796266.tar.bz2 of=/dev/null bs=1M 10213172008 bytes (10 GB) copied, 39.8882 s, 256 MB/s Network performance I ran iperf between the two clients. Network performance is 939 Mbit/s iblue@raven $ iperf -c 94.135.XXX ------------------------------------------------------------ Client connecting to 94.135.XXX, TCP port 5001 TCP window size: 23.2 KByte (default) ------------------------------------------------------------ [ 3] local 94.135.XXX port 59385 connected with 94.135.YYY port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec 1.09 GBytes 939 Mbits/sec

  Read the article

• Mixing both local and nonlocal addresses on three switches

  - by klew

  I have four computers that have nonlocal addresses like 150.X.X.X. Now I also get another few computers that should be only accessible through a gateway (it will be computing cluster) and they addresses are 10.0.0.X. I also wanted to include those four older computers to this new cluster, but I want them to be accessible from internet on nonlocal addresses (so I would like to set up them on both 150.X.X.X and 10.0.0.X addresses - I've set up it as interface eth0:0 since I have only one NIC). Those new computers have their switch and old computers also have their own switch. Both of them are connected to another (third) switch. The problem is that those old computers see each other (I can ping them), and also new computers see each other, but I can't ping old computer from new computer and vice versa. However pinging on nonlocal adresses works as expected. I looked into switch configuration and didn't find anything useful. I have no idea what I missed here. Can somebody help? All computers have Ubuntu Server 10.04

  Read the article

• How can I extract data from Toshiba Satellite with a dead Windows installation?

  - by msanford

  I've got a Toshiba Satellite (unknown model number but bought early 2010) running Windows Vista which throws a kernel error on boot. We don't have the restore/recovery CD any more to restore the Windows partition. I have managed to boot to a Live CD version of Ubuntu 10.10 and have mounted the internal hard drive (which takes nearly 8 minutes). I suspect that the hard drive is malfunctioning, however, because copy tasks of even 30 megs of data to an attached and mounted USB flash drive takes over an hour, and some files are mysteriously inaccessible (not a permissions issue). When browsing folders, it takes many minutes to populate the folder window even with a single tiny file. During the copy tasks, the hard disk sounds like it tries to sleep several times in rapid succession, then continues accessing, it sounds, at full throughput. I initially tried using scp (from the shell) to copy data but I encountered the same local problems. I don't know the S.M.A.R.T. status of the hard disk, either. Is there a more effective way of going about recovering the data on the internal disk, assuming that I can't use a recovery CD and am too cheap to bring it in (for now, at least)?

  Read the article

• Symlink path can be followed manually, but `cd` returns Permission denied

  - by Ricket

  I am trying to access the directory /usr/software/test/agnostic. There are several symlinks involved in this path. As you can see by the below transcript, I am unable to cd directly to the path, but I can check each step of the way and cd to the symlinked directories until I reach the destination. Why is this? (and how do I fix it?) Ubuntu 12.10, bash > ls /usr/software/test/agnostic ls: cannot access /usr/software/test/agnostic: Permission denied > cd /usr/software/test > cd agnostic bash: cd: agnostic: Permission denied > pwd -P /x/eng/localtest/arch/x86_64-redhat-rhel5 > ls -al | grep agnostic lrwxrwxrwx 1 root root 15 Oct 23 2007 agnostic -> noarch/agnostic > ls -al | grep noarch ... lrwxrwxrwx 1 root root 23 Oct 23 2007 noarch -> /x/eng/localtest/noarch > cd noarch > cd agnostic bash: cd: agnostic: Permission denied > ls -al | grep agnostic lrwxrwxrwx 1 5808 dip 4 Oct 5 2010 agnostic -> main > cd main > ls (correct output of `ls`) > pwd /usr/software/test/noarch/main > pwd -P /x/eng/localtest/noarch/main

  Read the article

< Previous Page | 647 648 649 650 651 652 653 654 655 656 657 658  | Next Page >