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• debian modem problems !!!

  - by Raafat

  hay there guys ... I'm a new Debian user, it looks like a very good choice 4 me, every thing is stable, free and easy to use. the problem is, I'm using my modem to establish a dial up connection to the internet (ppp) (a very old stupid way I'm forced to use for now), and using the KPPP application to do that, and nothing is working properly for me. it seems like it didn't recognize my modem or something. i already tried to make a few stuff, and now i know my modem is on /dev/tty0, so i made a link for that on /dev/modem, and query the modem using KPPP and it responded with something like: Ati : Ati0: Ati1: ... ... Ati7: with a textBox to fill up in front of each one of thees Atis, and now, when i press connect on kppp, it says modem ready, and that's it. BTW, my modem is MDC AC'97 any suggestions pleas ....

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• brctl Not working fine with bridging eth0 and at0

  - by Passi0n

  I made an access point with airbase-ng and its at0 I tried to bridge my eth0 and at0 by brctl addbr demo brctl addif demo eth0 brctl addif demo at0 brctl demo up dhclient3 demo & already removed eth0 ip so when i use ping 192.168.1.1 -I eth0 theres no reply but if i use ping 192.168.1.1 -I demo it works!!! In browser internet works fine so when i connect my android with at0 (access point) it should same work. but its now working at all :(

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• Where are ethernet errors logged?

  - by Matt

  Munin is showing me a graph like this: During that spike, I was unable to access my server through the eth0 port (I could access it through my IPMI port). I'm trying to figure out what happened, but I can't seem to locate any log files for eth0. I don't see anything in /var/log/(kern|syslog|messages) that is out of the ordinary. And I don't see a log file specifically for eth0. Are there logs for eth0, and if so, where can I find them? I am running Ubuntu 10.04 LTS.

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• User and group permissions in access.conf

  - by Maddie

  How do I configure access.conf so that the following rule is applied? : Allow the user dia to connect from 192.152.100. Deny the user sim to connect from 192.152.100. Particularity : both the users dia (uid = 8389753) and sim (uid = 500) belong to the group sim (gid = 500) Yes, the user and group sim have the same name and the same id. With the follwing syntax, - : sim : 192.152.100. the user sim is denied, as well as dia (because dia belongs to the group sim). access.conf considers sim as being both the user and group. How do I specify that I want to deny the user sim, but at the same time allow the user dia ?

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• How can I force a MySQL table to become corrupted?

  - by Rory McCann

  I have written a simple Nagios plugin that calls mysqlcheck (which checks for corrupted tables) and will give a warning if any are corrupt. However none of my tables are corrupt now. So I'm not 100% sure that my plugin is working fine. I have a dev server that's not misson critical. How can I force one (or any) of the tables there to be corrupt so that I can test my nagios alert? For the record the server is Ubuntu Dapper and the mysql is version 5.0

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• how do I create a new git repository with turnkey redmine?

  - by Ali Shafai

  I have downloaded the Turnkey's redmine VM and it's running finr (I can create new projects and wikis and document lists etc etc). only thing is I can't make it to use my new git repos. I found this link, but it didn't help. any help appreciated.

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• Unable to start tomcat6: Java error (Exception in thread "main")

  - by Nyxynyx

  After installing tomcat6 on CentOS 6.3, I am unable to start tomcat6 server. root@host [/var/log/tomcat6]# service tomcat6 start Starting tomcat6: [ OK ] Although it says OK, I cant access http://mydomain.com:8080. catalina.out Exception in thread "main" java.lang.NullPointerException at java.lang.VMClassLoader.defineClass(libgcj.so.10) at java.lang.ClassLoader.defineClass(libgcj.so.10) at java.security.SecureClassLoader.defineClass(libgcj.so.10) at java.net.URLClassLoader.findClass(libgcj.so.10) at gnu.gcj.runtime.SystemClassLoader.findClass(libgcj.so.10) at java.lang.ClassLoader.loadClass(libgcj.so.10) at java.lang.ClassLoader.loadClass(libgcj.so.10) at gnu.java.lang.MainThread.run(libgcj.so.10) Tomcat6 was installed using yum: yum -y install java tomcat6 tomcat6-webapps tomcat6-admin-webapps When I tried to find the version: tomcat6 version: Exception in thread "main" java.lang.NoClassDefFoundError: org.apache.catalina.util.ServerInfo at gnu.java.lang.MainThread.run(libgcj.so.10) Caused by: java.lang.ClassNotFoundException: org.apache.catalina.util.ServerInfo not found in gnu.gcj.runtime.SystemClassLoader{urls=[], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}} at java.net.URLClassLoader.findClass(libgcj.so.10) at gnu.gcj.runtime.SystemClassLoader.findClass(libgcj.so.10) at java.lang.ClassLoader.loadClass(libgcj.so.10) at java.lang.ClassLoader.loadClass(libgcj.so.10) at gnu.java.lang.MainThread.run(libgcj.so.10) Any idea what I should do? Thanks!

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• Personal | First Stop on our trip, St. Louis

  - by Jeff Julian

  St. Louis is definitely a cool city. I have always looked at it as Kansas City’s big brother. I love to Arch, wonder what is would be like to have pro hockey, really like the downtown area, and have some great friends who live there. The reason we left for St. Louis on Thursday evening was to get us a head start on our journey. Since we were doing a Diners, Drive-ins, and Dives tour, it made since to have the journey start there. We picked the Hyatt Downtown as our hotel because they had an Arch Package which was suppose to get you tickets to the arch so you didn’t need to arrive early and wait in line. That ended up not working cause the arch had been selling out every day and they were no longer accepting the hotels tickets. No biggie and the hotel did try very hard to get us tickets, but we just took our chances in the line and waited. We walked over to the park and had to wait for about 20 minutes for the doors to open and had tickets after another 20 minutes of waiting in line and at that point walked right up and were able to get to the elevators.I want to stop here to have a little aside. I don’t know who started the rumor that the arch ride is scary but it is not. You do sit in a small pod, but it like the accent on a roller coaster to the top of the first drop and an elevator with no windows outside. Nothing to be afraid of here if you aren’t claustrophobic. If you are afraid of small spaces, stay clear of this ride. Once you get to the top, you walk up 10 to 30 stairs depending on which car you were in (lower the number the less stairs you climb) and you are then at the top in a decent sized room where you look out the windows. Beautiful view of the city. I don’t typically like heights, but this felt like being inside a building and not hang out on a roof. Here is the view from the arch: Related Tags: Diners, Drive-ins, and Dives, St. Louis, Vacation

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• Trouble with apache saarting on boot with ssl api key

  - by molleman

  Im Running on Centos, the trouble is when i restart my server i need to start my apache and varnish service I use this to start both of them service httpd restart && service varnish restart But i would likw both of them to start when i reboot the server I read i could use this chkconfig httpd on But this is only for apache could i do this chkconfig varnish on Finally when i do y usual start of httpd , i am asked for my api key for SSL , am i able to incorporate this into resarting both varnish and httpd on start up. Or am i doomed to run this command everytime i resart

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• multicast tcpdump and subscriptions

  - by Karoly Horvath

  From the multicast howto: IP_ADD_MEMBERSHIP. Recall that you need to tell the kernel which multicast groups you are interested in. If no process is interested in a group, packets destined to it that arrive to the host are discarded. If you don't do that, you won't see those packets with tcpdump. Is it possible to subscribe to all multicast traffic so I can do a tcpdump for all existing traffic? I would think IGMP doesn't allow this, so probably not.. but maybe you can configure a switch to still send all multicast traffic. Is that possible? Is it possible to do subscription (for a specific IP) with a command line tool? (note: I know how to do this in C.. but would prefer to use an existing tool and not compile a separate program for this)

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• Sharing disk volumes across OpenVZ guests to reduce Package Management Overhead

  - by andyortlieb

  Is it feasible to create a single "master" OpenVZ guest who would only be used for package management, and use something like mount --bind on several other OpenVZ guests sort of trick them into using the environment installed by the master guest? The point of this would be so that users can maintain their own containers, and yet stay in sync with the master development environment, so they'll always have the latest & greatest requirements without worrying too much about system administration. If they need to install their own packages, could put them in /opt, or /usr/local (or set a path to their home directory)? To rephrase, I would like several (developer's, for example) OpenVZ guests whose /bin, /usr (and so on...) actually refer to the same disk location as that of a master OpenVZ guest who can be started up to install and update common packages for the environment to be shared by all of this group of OpenVZ guests. For what it's worth, we're running Debian 6. Edit: I have tried mounting (bind, and readonly) /bin, /lib, /sbin, /usr in this fashion and it refuses to start the containers stating that files are already mounted or otherwise in use: Starting container ... vzquota : (error) Quota on syscall for id 1102: Device or resource busy vzquota : (error) Possible reasons: vzquota : (error) - Container's root is already mounted vzquota : (error) - there are opened files inside Container's private area vzquota : (error) - your current working directory is inside Container's vzquota : (error) private area vzquota : (error) Currently used file(s): /var/lib/vz/private/1102/sbin /var/lib/vz/private/1102/usr /var/lib/vz/private/1102/lib /var/lib/vz/private/1102/bin vzquota on failed [3] If I unmount these four volumes, and start the guest, and then mount them after the guest has started, the guest never sees them mounted.

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• procfs and youtube flash video

  - by trideceth12

  Up until recently (about 3 months ago), ALL open flash videos had deleted file handles in the procfs virtual folder for the flash plugin, I could see them thus: ps x|grep flash cd /proc/#PROCESS#/fd ls -l cp #FILE# ~/ This still works for the vast majority of flash video, but some YouTube videos no longer keep this open file handle. My questions are: A) Why not? B) Where are these files now stored? C) How can I get this file Yes I know I could probably get a browser plugin, it just annoys me that they are hiding these files so I want to keep doing it the hard way.

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• Copying symbolic links and filenames with special characters to NAS

  - by Mr E

  I have a new Western Digital My Book Live NAS. I am trying to copy files from an old drive to the NAS. I'm using Ubuntu 12.04 and I've mounted the drive by browsing the network in Nautilus and choosing a shared folder configured on the NAS. The shared folder is then automatically mounted at .gvfs/files on mybooklive. There are two problems so far: File names and directory names containing certain characters (e.g. : or |). Attempting to copy these results in the error message: cp: cannot stat `/path/to/destination.filename': Invalid argument Symbolic links. In Nautilus I get the error message: Symlinks not supported by backend My questions are: Can I connect to the NAS or configure the NAS so that I can copy my files without this problem? (In case it matters, I don't need Windows compatibility.) If not, what can I do to identify all the problem files? Can I do anything to automatically fix my filenames Please let me know if any of this needs clarification. I'm not too familiar with all of this so I may have left out some useful information.

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• Multiple VM environment for developing/testing

  - by Hippo

  I was asked to create a setup for automated deployment, configuration, installation/updates of websites. A bunch of small websites will be bundled on one server. If more website will come up a new server will be created... I decided to us chef for this task. All servers will be running Ubuntu at the same version and configuration. The actual question: Everything needs to be tested properly before starting live deployment, so my question is: What is the best virtualisation tool to run multiple (5 - 10) virtual machines on a Ubuntu Laptop? Requirements: easy setup, fast (clone/snapshot of VMs) All VMs should be easily connected to the internet and should be able to communicate to each other (Open-Source / free would be great) So far I looked into: Virtual box is more for Desktop virtualisation, Cloning not possible, every new machine needs to be installed VMware Player Any suggestions? If there are any question about what I am doing please comment on this question, I will answer as soon as possible. This question is not about the actual set up, it is about a nice working environment.

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• What else is needed to get iptables to log into this file I created?

  - by anthony01

  I want to create the logging of iptables DROP's and intrusion attemps. First, I put --log-prefix "iptables: " at the end of every iptables rules in my iptables rules file. But this doesn't work, as it says there is a syntax error. So where should I put that command? (I would want to have it included in the saved rules file) Secondly, I created a file iptables.conf within /etc/rsyslog.d/, and I put the following inside of it: :msg, startswith, "iptables: " -/var/log/iptables.log & ~ I assume that at this stage, I'm supposed to restart the rsyslog daemon. What else is needed to do what I'm attempting? Thanks a lot

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• Is it possible for root to execute a command as non-root

  - by adnan kamili

  I am root user and suppose i want to run any application as another user. is it possible, without switching to another user. Something like # google-chrome user=abc I am actually executing a cli program as a non root user. I have set the sticky bit on and i am using setuid. So the program runs with root privileges. Now i am using system() with in the program to invoke gui app. But i dont want to run it as root. so i want to temporarily drop root privileges only for that call.

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• Search all files containing text

  - by enthdegree

  With Busybox, how do you search for an expression within a bunch of files recursively through a bunch of directories, but only look through text files? We don't know what the file's suffix is going to be; it could be .sh, it could be nothing, it could be something else. I was considering somehow basing the search on encoding although I am not quite sure what the encoding would be either. I've tried busybox grep -r but it searches through binary files too, which wastes a lot of time.

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• rdfii-backup command view backedup files

  - by Hulk

  We are using rdiff-backup command to make incremental backups.My question is that how to view the files in a particular backup i.e, .gz file Also how to recover all the files in a particular gz file

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• Bash wonkyness on Ubuntu versus RHEL

  - by d34dh0r53

  Fellow faulters, I'm playing around with a one liner that I've developed on a RHEL 5.4 box and I have it working perfectly: TOTAL_RAM=`free | grep Mem: | awk '{ print $2 }'`; \ ps axo rss,comm,pid | awk -v total_ram=$TOTAL_RAM \ '{ proc_list[$2] += $1; } END { for (proc in proc_list) \ { proc_pct = (proc_list[proc]/total_ram)*100; printf("%d\t%s\t%0.2f%\n", proc_list[proc],proc,proc_pct); }}' \ | sort -n | tail -n 10 Which outputs something like the following on my RHEL box: 3736 logmon 0.01% 4156 EvMgrC 0.01% 4692 hald 0.01% 5020 ntpd 0.02% 6252 sshd 0.02% 7784 cvd 0.02% 9224 snmpd 0.03% 13068 dsm_sa_datamgr3 0.04% 23320 dsm_om_connsvc3 0.07% 4249864 mysqld 12.90% However on my Ubuntu 9.04 slice I get this: awk: run time error: not enough arguments passed to printf("%d %s %0.2f% ") FILENAME="-" FNR=104 NR=104 33248 console-kit-dae 3.17 I think it has to be bash that is borking something, but I'm really not doing anything that should be that bash specific. The RHEL box is running: # yum info bash | grep -e Version -e Release Version : 3.2 Release : 24.el5 And the Ubuntu box: # apt-cache show bash | grep -e Version Version: 3.2-5ubuntu1 I haven't dug into this super deeply, and thought I'd ping my fellow johnnys to see if you've ever run across this before. /bow

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• Can't SSH to remote server,how to avoid this

  - by snow8261

  From time to time,we suffer problems like we can not remote connect to our server via ssh.So we have to send someone on site to restart the computer for this problem.It causes a lot of pain.The situation is we have to remote connect to our server,which are very important like database server and application server and etc.We have met problems like ssh hang,like command ssh [email protected] with no response. when using ssh -v debug mode, it says : debug1: Connection established. debug1: identity file /.ssh/identity type -1 debug1: identity file /.ssh/id_rsa type -1 debug1: identity file /.ssh/id_dsa type -1 debug1: loaded 3 keys and we met this situation many times with no clue how to solve it.Is any log which can identify this problem? or Is there a tool for this problem? help needed!Any idea are appreciated.

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• What Hypervisors support non-homogenous clusters?

  - by edude05

  I've been using Citrx Xenserver for awhile on a few machines that don't support Hardware Virtualization as a test for various small servers. I recently have been experimenting with moving the PV Vms between machines but Xenserver gives me errors that roughly say I need to have homogenous hardware for this to work. Because of this I haven't been able to setup XenMotion or any of the nice features that come with server pooling in Xenserver. I'm considering moving away from XenServer, however I can't seem to find a Hypervisor that explicitly supports non-homogenous clusters. On a side note, we do have a few idenitally configured Dell 1950s that haven't had any VM solution setup on yet, so if we can find a solution that can allow us to move PVs to those as well that would be great. Non free solutions are OK as well. What hypervisor will allow this? Thanks!

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• USB To Serial under OpenSuse 11.3

  - by Exsisto

  I have a LogiLink USB-To-Serial adapter. This has the PL2303 chip inside. When I insert the device: [26064.927083] usb 7-1: new full speed USB device using uhci_hcd and address 9 [26065.076090] usb 7-1: New USB device found, idVendor=067b, idProduct=2303 [26065.076099] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [26065.076105] usb 7-1: Product: USB-Serial Controller [26065.076110] usb 7-1: Manufacturer: Prolific Technology Inc. [26065.079181] pl2303 7-1:1.0: pl2303 converter detected [26065.091296] usb 7-1: pl2303 converter now attached to ttyUSB0 So the device is recognized and the converter is attached to ttyUSB0. When I do screen /dev/ttyUSB0 9600 I get the error: bash: /dev/ttyUSB0: Permission denied So I went looking in the file permissions. ls -l from the /dev folder reports: crw-rw---- 1 root dialout 188, 0 2011-04-26 15:47 ttyUSB0 I added my user lars to the dialout group. When I use the commands groups under lars it shows that I'm in the group. Though I still recieve the permissions denied error, as lars, and as root. I'm trying to connect to a console cable to configure some Cisco switches. My OS is OpenSuse 11.3 x86_64 with kernel version 2.6.34.7-0.7-desktop.

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• How to get rid of resume information on ubuntu 9.10 ("karmic")

  - by Glen S. Dalton

  I am on an old laptop with Ubuntu 9.10 installed. I once tried to not shutdown but go into one of the resume states. On the next power on, resume did not work, but there was an error message during boot asking me for the resume image (which I do not have or know of) and when I press enter the normal boot happens. But this error pops up on every boot now. How can I get back the behaviour from before? Why does the boot process guess there would be a resume image and can I delete this information? I would like to post here the error messages from the boot proces, but they are not in /var/log/syslog, where else can they be?

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• How to upgrade XBMC Live via command line?

  - by sunpech

  I've been unable to do a fresh install of XBMC Live 9.11 to my hard drive. Everytime it fails at the Install System step. But I am able to get XBMC Live 9.04.1 to install successfully. How do I upgrade XBMC Live 9.04.1 to 9.11? I understand that Ctrl+Shift+F2 brings up the command line, but what are the next set of commands to run?

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• Why do Ping and Dig provide different IP address than nslookup?

  - by user1032531

  When pinging my domain name which points to my home public IP from two different servers on my LAN, it shows them pinging different IP. Further investigation shows dig and nslookup providing different results. See below. A little history. My IP used to be 11.22.33.444 and is hosted by Comcast. I changed routers, and it somehow got changed to 55.66.77.888. I've since updated my 1and1 domain name to point to the 55.66.77.888. desktop is a basic server, runs the web server, and connects wirelessly to my LAN. laptop is a GUI and connected via CAT5. Both operate Centos6.4. My old router was a D-Link, and used their "Virtual Server" feature to pass port 80 to desktop. My new router is a Linksys, and I use their "Port Forwarding" feature to pass port 80 to desktop (however, I haven't gotten this part working yet). What is going on??? Why the different IPs? Obviously, it most somehow be stored on the server, but why does the actual machine even know the public IP since it is on a LAN? How do I purge the old IP? [root@desktop etc]# dig +short myDomain.com 11.22.33.444 [root@desktop etc]# nslookup www.myDomain.com Server: 8.8.8.8 Address: 8.8.8.8#53 Non-authoritative answer: Name: www.myDomain.com Address: 55.66.77.888 [root@desktop etc]# dig myDomain.com ; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.6 <<>> myDomain.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13822 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;myDomain.com. IN A ;; ANSWER SECTION: myDomain.com. 16031 IN A 11.22.33.444 ;; Query time: 21 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Mon Oct 21 04:36:52 2013 ;; MSG SIZE rcvd: 44 [root@desktop etc]# [root@laptop ~]# dig +short myDomain.com 55.66.77.888 [root@laptop ~]# nslookup www.myDomain.com Server: 192.168.0.1 Address: 192.168.0.1#53 Non-authoritative answer: Name: www.myDomain.com Address: 55.66.77.888 [root@laptop ~]#

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