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  • Linux FHS: /srv vs /var ... where do I put stuff?

    - by wag2639
    My web development experience has started with Fedora and RHEL but I'm transitioning to Ubuntu. In Fedora/RHEL, the default seems to be using the /var folder while Ubuntu uses /srv. Is there any reason to use one over the other and where does the line split? (It confused me so much that until very recently, I thought /srv was /svr for server/service) My main concern deals with two types of folders default www and ftp directories specific application folders like: samba shares (possibly grouped under a smb folder) web applications (should these go in www folder, or do can I do a symlink to its own directory like "_/www/wordpress" - "/srv/wordpress") I'm looking for best practice, industry standards, and qualitative reasons for which approach is best (or at least why its favored).

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  • Where are the TweetDeck settings-files located in (ubuntu-) linux?

    - by Philipp Andre
    Hi Everybody, i'm running Windows as well as Ubuntu and like to sync both tweetdeck installations via dropbox. Therefore i need to locate two files: td_26_[username].db preferences_[username].xml I found them on windows under the folder c:\Users[account]\AppData\Roaming\TweetDeckFast.[random string]\Local Store\ But i can't find them on my ubuntu installation. Does anyone know where these files are located? Best Regards Philipp

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  • Updating PHP on Linux - "No Packages marked for Update"?

    - by Aristotle
    I'm very new to server-administration, but I was thinking the task of updating PHP to 5.2+ should be relatively simple. Online I found that the following was allegedly sufficient to do this: yum update php But when I run this, the following is output: [root@ip-XXX-XXX-XXX-XXX /]# php -v PHP 5.1.6 (cli) (built: Jan 13 2010 17:13:05) Copyright (c) 1997-2006 The PHP Group Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies [root@ip-XXX-XXX-XXX-XXX /]# yum update php Loaded plugins: fastestmirror Determining fastest mirrors * addons: p3plmirror02.prod.phx3.secureserver.net * base: p3plmirror02.prod.phx3.secureserver.net * extras: p3plmirror02.prod.phx3.secureserver.net * turbopanel-base: p3plmirror02.prod.phx3.secureserver.net * turbopanel-centos5: p3plmirror02.prod.phx3.secureserver.net * update: p3plmirror02.prod.phx3.secureserver.net addons | 951 B 00:00 addons/primary | 201 B 00:00 base | 2.1 kB 00:00 base/primary_db | 1.6 MB 00:00 extras | 1.1 kB 00:00 extras/primary | 107 kB 00:00 extras 325/325 turbopanel-base | 951 B 00:00 turbopanel-base/primary | 72 kB 00:00 turbopanel-base 494/494 turbopanel-centos5 | 951 B 00:00 turbopanel-centos5/primary | 2.1 kB 00:00 turbopanel-centos5 8/8 update | 1.9 kB 00:00 update/primary_db | 463 kB 00:00 Setting up Update Process No Packages marked for Update [root@ip-XXX-XXX-XXX-XXX /]# php -v PHP 5.1.6 (cli) (built: Jan 13 2010 17:13:05) Copyright (c) 1997-2006 The PHP Group Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technolog [root@ip-XXX-XXX-XXX-XXX /]# No Packages marked for Update [root@ip-XXX-XXX-XXX-XXX /]# php -v bash: No: command not found [root@ip-XXX-XXX-XXX-XXX /]# [root@ip-XXX-XXX-XXX-XXX /]# php -v bash: [root@ip-XXX-XXX-XXX-XXX: command not found [root@ip-XXX-XXX-XXX-XXX /]# PHP 5.1.6 (cli) (built: Jan 13 2010 17:13:05) bash: syntax error near unexpected token `(' [root@ip-XXX-XXX-XXX-XXX /]# Copyright (c) 1997-2006 The PHP Group bash: syntax error near unexpected token `c' [root@ip-XXX-XXX-XXX-XXX /]# Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies bash: syntax error near unexpected token `(' [root@ip-XXX-XXX-XXX-XXX /]# My PHP version is 5.1.6 before, and after running the command. Am I being too naive here with this update process? Is there a more verbose route that is necessary for me to take?

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  • Why is my Linux box dropping network connection? [closed]

    - by Robo
    I have a Debian server in the form of a Raspberry Pi running Raspian. It has a USB Wi-Fi connection. Sometimes it would not respond when I SSH to it, and would require a reboot. I found something in syslog that may indicate what the problem is, can someone help with what this means? Dec 16 15:34:17 raspberrypi wpa_supplicant[1501]: wlan0: WPA: Group rekeying completed with 00:21:29:6c:5c:3d [GTK=CCMP] Dec 16 16:17:01 raspberrypi /USR/SBIN/CRON[2109]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Dec 16 16:34:17 raspberrypi wpa_supplicant[1501]: wlan0: WPA: Group rekeying completed with 00:21:29:6c:5c:3d [GTK=CCMP] Dec 16 17:17:01 raspberrypi /USR/SBIN/CRON[2127]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Dec 16 17:34:17 raspberrypi wpa_supplicant[1501]: wlan0: WPA: Group rekeying completed with 00:21:29:6c:5c:3d [GTK=CCMP] Dec 16 18:17:01 raspberrypi /USR/SBIN/CRON[2142]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Dec 16 18:34:17 raspberrypi wpa_supplicant[1501]: wlan0: WPA: Group rekeying completed with 00:21:29:6c:5c:3d [GTK=CCMP] Dec 16 19:17:01 raspberrypi /USR/SBIN/CRON[2161]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Dec 16 19:31:29 raspberrypi kernel: [16615.391509] ieee80211 phy0: wlan0: No probe response from AP 00:21:29:6c:5c:3d after 500ms, disconnecting. Dec 16 19:31:29 raspberrypi wpa_supplicant[1501]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:21:29:6c:5c:3d reason=4 Dec 16 19:31:29 raspberrypi kernel: [16615.416189] cfg80211: Calling CRDA to update world regulatory domain Dec 16 19:31:30 raspberrypi ifplugd(wlan0)[1444]: Link beat lost. Dec 16 19:31:40 raspberrypi ifplugd(wlan0)[1444]: Executing '/etc/ifplugd/ifplugd.action wlan0 down'. Dec 16 19:31:40 raspberrypi wpa_supplicant[1501]: wlan0: CTRL-EVENT-TERMINATING - signal 15 received Dec 16 19:31:40 raspberrypi ifplugd(wlan0)[1444]: Program executed successfully. Dec 16 19:31:42 raspberrypi ntpd[1928]: Deleting interface #2 wlan0, 192.168.1.10#123, interface stats: received=321, sent=327, dropped=0, active_time=16596 secs Dec 16 19:31:42 raspberrypi ntpd[1928]: 202.6.116.123 interface 192.168.1.10 -> (none) Dec 16 19:31:42 raspberrypi ntpd[1928]: 203.99.128.34 interface 192.168.1.10 -> (none) Dec 16 19:31:42 raspberrypi ntpd[1928]: 203.118.148.40 interface 192.168.1.10 -> (none) Dec 16 19:31:42 raspberrypi ntpd[1928]: 202.89.49.65 interface 192.168.1.10 -> (none) Dec 16 19:31:42 raspberrypi ntpd[1928]: peers refreshed

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  • How do you add a certificate for WLAN in Linux, at the command-line?

    - by Neil
    I'm using Maemo on a Nokia n810 Internet tablet, and when given a list of installed certificates to choose from when connecting to a PEAP wireless network, it's always blank. I've already installed a couple of certificates through the gui on the device, and only the certificate authorities show up. I've confirmed that Maemo's connection software that handles certificates is buggy, in such a way that certificates are never added, or properly added certificates cannot be found. Is there a way to add WLAN certificates at the command-line, and connect to a wireless network at the command-line as well? I used to use iwconfig to connect, but I never used it with PEAP. Note: I have nothing in /etc/ssl/certs

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  • Should root ever own files in my (linux) home directory?

    - by Darren Cook
    This question started off asking why my history file wasn't working properly. Then I noticed it was -rw------- 1 root root and hadn't been updated since 2012-09-11. I changed the ownership, problem fixed. But now I see some other files are owned by root: .gitconfig .pearrc .viminfo Can I safely change them to be owned by my normal user, not root? I'm scratching my head trying to work out if there is a downside, or a security consequence. Losing seven weeks history is actually quite painful, because I lean on it a lot (e.g. to remind how I last did an archive). Would it be reasonable to set up a cron job to email me if it finds any files in my home directory owned by anyone else but me? Rephrased: is there ever a good reason for root to own a file in my home directory?

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  • Would it be smarter to setup a Linux development server at home, or to use a hosted server?

    - by markle976
    I am in the process of learning as much as I can about LAMP. I was wondering if I should set a web server on my home network, or use a service like Rackspace (cloud space)? I need to have root access, to be able to access it remotely via SSH/FTP/HTTP, and to be able to install things like subversion, etc. I currently have Comcast so I have plenty of bandwidth, but I am not sure if this would violate the TOS, and/or compromise the security of my home network. Pricing for these cloud hosts, seems reasonable ($11 per month plus about $0.10 per GB of bandwidth), but I am not sure if I will have to control I am looking for.

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  • No resizing / Auto fit and Unity with Ubuntu 9.10 as Guest at all

    - by andyt25
    Hi! Problem 1: I have Ubuntu 9.10 installed and Workstation 7.01. All VMs (WinXP, Win7, Debian) I run do not resize any more. Problem 2: Unity Mode "Bar" works for short and disapears after seconds .. opened programs with unity mode work well, but the bar disapears History: I changed from Ubuntu 9.04 to 9.10, no VM was moved or changed. Latest VMWare Tools are installed, Auto fit Guest is activated. I am quite sure, that resizing / auto fitting and Unity Mode worked well with Ubuntu 9.04 thx for a hint, i hope didn't overlook something ..

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  • Xencenter guest will not boot

    - by Georgi
    I have xen server free edition. Today one of the guest VM was very loaded and I decided to reboot it. Now it can not start. It is with Ubuntu 10.04 Server. The machine is shown as running in xsconsole and in windows Xen control center. It shows 100 % CPU and 100 % RAM usage. The console shows nothing (it doesn't show boot process). And the worst is that I have no backup. Is there any advice how to see what is going on. I exported it to file and now I am trying it to import it into another server, because I can't reboot the physical server it runs on. Can this save me (the reboot of the server) Thank you

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  • Linux: How do I remove bootchart from the boot process?

    - by java.is.for.desktop
    Hello, everyone! I have OpenSUSE 11.2. I removed bootchart and forgot to run mkinitrd. Now, right at the start of the boot process, I get boot/93-bootchart.sh: line 17: 462 Terminated stopinitrd 5 I Can't find any 93-bootchart.sh anywhere. Failsafe boot mode doesn't help. Earlier I got an error message about non existing /sbin/bootchartd, but I just copied /bin/cat to /sbin/bootchartd using a GParted boot disk. I tried to use chroot with an OpenSUSE boot disk, but mkinitrd can't find the root device, which is there actually (/dev/sda5). How can I make my system boot again? EDIT Ok, now I managed to re-install the bootchart rpm, using OpenSUSE boot disk and chmod. The system starts again. But that annoying bootchart is still there. I will not try again to remove it. First I will try to figure out, how to disable it during the boot process. Hopefully with your help ;)

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  • How do I configure an ordinary TV remote control to work with lirc on Linux?

    - by Allan Lewis
    I am running MythTV on Ubuntu 9.10 and I would like to use a TV remote to control it. I know that lirc needs a configuration file for the remote, but none of my remotes is in the official database. If I point a remote at the receiver on my TV card (a Pinnacle PCTV "Solo", model 72e) and press a button, dmesg logs the code generated by the remote, so I assume I just have to make a config file with a list of commands assigned to these codes. I've read a few how-tos but I still don't understand exactly how to create the config file. Some of the guides I've read refer to IR receivers on TV cards working at a "higher level of abstraction", which I take to mean that they decode the signal and provide a code, like the ones I can see in dmesg, rather than just giving raw data, but none of them explain where to go from there! Any help would be greatly appreciated!

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  • Is there a Linux-compatible R/C simulator that works with real radios?

    - by Norman Ramsey
    My Dad flies radio-controlled (R/C) aircraft. He used to run a simulator called "RealFlight" which allowed him to connect his actual radio to his computer and fly simulated craft. He learned enough to fly actual planes, but he wants to move up from "trainer" aircraft to higher-performance craft. After some crashes, he'd like to go back to the simulator for a while. The catch: he's given up Windows and is now running Ubuntu. Question: is there an R/C flight simulator that Runs on Ubuntu? Allows you to connect your radio and use it to control the simulator, preferably through a USB port?

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  • What is the best Linux filesystem for MySQL (InnoDB)?

    - by Continuation
    I tried to look for benchmark on the performances of various filesystems with MySQL InnoDB but couldn't find any. My database workload is the typical web-based OLTP, about 90% read, 10% write. Random IO. Among popular filesystems such as ext3, ext4, xfs, jfs, Reiserfs, Reiser4, etc. which one do you think is the best for MySQL?

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  • Is it possible/practical to install and run Linux on a USB flash drive?

    - by Graeme Donaldson
    I'm going to replace my old 2004 vintage desktop PC soon and I have an idea of what I want to do, I'm just not sure if it's possible or realistic. In the time since I built the old PC it has slowly become less used as a PC and more as a file server, so I figured I'd build a small file server which could also function as a router/DHCP/DNS/whatever box. The idea is to base it on an Atom system. I have my eye on the Intel D510MO for the moment. This supports 2 SATA disks, and I'd prefer to dedicate those to data storage. I'd like to install Ubuntu Server or maybe Debian on a 8/16GB USB flash drive. I have seen plenty of tutorials on how to perform an installation from a USB drive, but I can't seem to find any info on actually booting and running the OS from USB flash. Is this even possible? Is it practical? This box will mostly be used for: Making backups of mine and my wife's notebooks via LAN. Will use SMB or NFS for this. Digital media storage, which will be accessed by a Mede8er box with no storage of its own. I will most likely use NFS for this.

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  • How to install software packages on a shared Red Hat Linux host account without root access or rpm?

    - by jeff
    I have a shared RHEL 4 host account where I do not have root privileges. I would like to install Git and Bash Complete in a way that they can be upgraded easily. To date, I've just been installing from source providing $HOME as a prefix to autoconf. Obviously this isn't ideal as I need to hunt down the files associated with the version I'm upgrading away from and delete them. I've tried using rpm but I just get -bash: rpm: command not found back so it's not available. I also looked into checkinstall but it looks like that requires rpm, dpkg, or Slackware's package manager to be available. Is there anything out there that can be used like a package manager without requiring root access or an existing package manager?

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  • Linux terminal - frozen update of input but can execute commands?

    - by Torxed
    How do i restart a shell session from within SSH when it looks something like this: anton@ubuntu:~$ c: command not found anton@ubuntu:~$ lib anton@ubuntu:~$ this is working, but its messed up anton@ubuntu:~$ I can execute commands, but as i input them nothing shows on the console, but as soon as i press enter the command executes and the output comes (without line-endings, as shown above) exec bash bash --login clear nothing really works, restarting the SSH session however works. Temporary solution is to start a screen session and every time the interface freezes you simply do Ctrl+a-c to start a new session and close the old one..

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  • ssh _from_ Linux _to_ Windows: Which editor to use on Windows machine?

    - by Thorbjørn Ravn Andersen
    We have a situation where we have a SSH-server running on a Windows host which we then use an ssh client in e.g. an xterm (or another vt100 compatible client) to connect to, and then get a DOS prompt (but without any GUI at all). Now we need to have a good editor on the Windows machine which will work out of the box in this scenario. I do not have any experience with this, so I do not know where to start. Suggestions?

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  • VirtualBox communication from Linux to/from Windows 7

    - by J. Otto Tennant
    VirtualBox is running in Windows 7 as the host. VirtualBox has the two modifications (one is called Guest Additions; don't remember the other). The Virtual machine has "bridged" networking selected. I have SAMBA set up (now, the problem may be here; it has been three or four years since I last did this) on the Linux guest machine. Neither guest nor host sees the other. From the Windows 7 command prompt, the IP address of the Linux guest pings. The IP address of another computer (a separate Windows 7 on the wireless network) pings from the Linux guest. (I have no idea what IP address the Windows 7 host itself has. The output of "netstat" does not seem to be useful.) So, it seem to me that something should be working. The only workgroup on the LAN is inventively named WORKGROUP. SMB4K should be seeing something. There must be a simple setup step that I am missing. (FWIW, there are two processes running smbd, and no process is running nmbd. YaST says that nmbd is set to run. I am not sure what this means.)

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  • How to disconnect a running bash job from the shell in Linux?

    - by raven
    I have a script that starts a server on a remote VM. All works great until I close the shell where I executed the script. When the shell closes, so does the server. After some looking around I found the following: & will send the job to the background when executed with the symbol disown -h will disconnect the job from the shell and allow it to run regardless of the shell. The command I used is: ./startServer.sh nasb_wxscat160_catalog-4.1.6 1.0.8 > catalog-log.txt & disown -h When I closed the shell and checked using ps -ef | grep java to see if the job is still working I did see it in the list. However when I tried to connect to the server it was unresponsive. On deeper inspection, the log file was filled just until I closed the shell and using the ps -m flag I say the process jobs were not working. Has any one encountered some thing of this sort?

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  • How to talk to a virtual host on a guest OS?

    - by Bernd
    Let's say there is a host OS (Mac OS X) and a virtual machine running Ubuntu as guest OS. The guest OS has the IP 192.186.56.101 and some virtual hosts, e.g. ubuntu.server So, how to really map a request to the virtual host ubuntu.server on the guest OS? I tried: Configure the host OS in /etc/hosts to map ubuntu.server to 192.186.56.101 On the guest OS we have the trouble. It accepts the request for 192.186.56.101 which is not ubuntu.server and therefor the ubuntu.server virtual host will never be requested. Just the localhost on the guest OS. It might surely be possible to simply then use 192.168.56.101. But this would only work for one host per guest OS. Any idea? Or is there a bug in my train of thoughts?

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