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  • Redirect non-www ssl traffic to www ssl (apache)

    - by The NinjaSysadmin
    Hello, I'm attempting to get a redirect which is failing, and for some reason I can't think today. I have a vHost file within HTTPD that listens on standard port 80 and port 443. I'm attempting to redirect https://domain.com/(.*) to https://www.domain.com/$1 so that the URL remains intact. My config is as follows: ServerName www.domain.com ServerAlias tempdomain.testdomain.co.uk ServerAlias domain.com My rerwrite rule I'm using is. RewriteCond %{HTTP_HOST} ^domain.com$ RewriteRule ^(.*)$ https://www.domain.com$1 [R=301,L] I've also tried removing the . and $ but nothing.. When I visit the url https://domain.com/secure.page?action=comp it doesn't redirect to https://www.domain.com/secure.page?action=comp I do also have other SSL pages, the above was just an example.. Can anyone point out my stupidity.

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  • Ask filesystem if it is mounted

    - by Brian
    How can I see if a (ext3) filesystem is mounted by asking the filesystem directly (i.e. the same way that the system does when it boots and sees that it was not unmounted cleanly)? Checking the output of mount is no good because the filesystem might be mounted by a virtual machine. I know I can run fsck and it will abort if the filesystem is mounted, but I don't need to actually check the filesystem.

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  • Should we regularly schedule mysqlcheck (or databsae optimization)

    - by scatteredbomb
    We run a forum with some 2 million posts and I've noticed that if left untouched the overhead in the mySQL (as listed in phpMyAdmin) can get quite large (hundreds of megabytes). I'm wondering if scheduling a normal mysqlcheck to optimize the tables is good practice? Any reason not to do it, say, once a week at an off-peak hour? There was a time over the summer where our site was constantly crashing because mysql was using up all resources. That's when I noticed the huge amount of overhead and optimized the database and haven't had any problems since then with stability. I figured if that was helping alleviate the issues, I should just setup a cron to automatically do this.

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  • Does Gedit have cool keyboard shortcuts?

    - by Kelp
    I have used Vim before and I love the keyboard shortcuts, but I hate having to copy and paste, so I am looking for a text editor that makes it easier. I have been trying Gedit. It's cool. But I really miss the being to create a new line, going to the end of the line, going to the beginning of the line, deleting a line with keyboard shortcuts. I tried to look up "gedit keyboard shortcuts" but all it came up with was how to save a file. Basic things.

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  • How much ram to be able to convert large (5-6MB) jpegs? [closed]

    - by cosmicbdog
    I've got a project where we want to be processing large jpegs (5-6MB) with apache and php (using GD library). My understanding is that the server converts the image into a BMP making it quite ram heavy and currently we're unable to do it with our 1gb of memory. Here's the error we get: Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 17408 bytes) How much ram should we be looking at running with to process images of this size? Edit: As Chris S the purist highlighted below, my post is apparently vague. I am doing the most basic and common manipulation of an image, say turning it from a 4352px x 3264px jpg of 5mb in size, to a 900px x 675px file.

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  • I've two swap partitions, how can i delete one?

    - by Gp2mv3
    I've installed Ubuntu on my computer but I did a mistake during the installation and it created two swap's. In fact I had tree partitions (system, home, swap) but the installator crashed so I restarted the installation and it has installed everything in the system partition. So now I separated the home in the appropriate partition but I've two swap partitions. How can I delete one ? If I delete one, how will it go ?

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  • Why is /dev/urandom only readable by root since Ubuntu 12.04 and how can I "fix" it?

    - by Joe Hopfgartner
    I used to work with Ubuntu 10.04 templates on a lot of servers. Since changing to 12.04 I have problems that I've now isolated. The /dev/urandom device is only accessible to root. This caused SSL engines, at least in PHP, for example file_get_contents(https://... to fail. It also broke redmine. After a chmod 644 it works fine, but that doesnt stay upon reboot. So my question. why is this? I see no security risk because... i mean.. wanna steal some random data? How can I "fix" it? The servers are isolated and used by only one application, thats why I use openvz. I think about something like a runlevel script or so... but how do I do it efficiently? Maby with dpkg or apt? The same goes vor /dev/shm. in this case i totally understand why its not accessible, but I assume I can "fix" it the same way to fix /dev/urandom

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  • Running a service as root

    - by kovica
    I have a java program that I use to automate the process of creating VPN settings for clients. The program calls couple of bash scripts, create and copies files around. I have to run it under root user because the whole VPN config is under /etc/openvpn. For this directory I need root privileges. On the same machine I have Glassfish application server and it will call the mentioned Java program. Glassfish is run under non-root user. What is the best, most secure way of running a program as a root user of course without entering a password if I run it via sudo?

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  • How to get the CentOS 5.6 alsa drivers which will really work with one shot, without any internet.

    - by 89899.3K
    I have one chance to install this in my server on site. Server that i am running is CentOS 5.6 (Dell R310, RAID1) where i need to install alsa-sound driver so that anything related to audio recording from rtsp is working (rail station/rail passing video recording including audio, where audio is not working). Unfortunately i do not have any kind of internet in that odd none human location so yum will not work for me. I need a offline way to install alsa drivers including missing dependencies if arise. What and where i can download this to my usb or cd? so that i can successfully install it (like mission complete). Thanks

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  • Apache HTTP Not Working When SSL Enabled

    - by dominic7il
    I've got a very bizarre problem in that after enabling SSL support in Apache I'm only able to access my site via SSL and not through http as well. I can confirm that Apache is definitely listening on both ports 80 and 443 (accdording to netstat). Additionally the Apache access logs are showing the requests - it's just that going in through http results in a timeout and I'm never actually able to reach the content. Like I said going through https works. Here is my httpd.conf: http://pastebin.com/kG2dPjJ2 and here is my httpd-ssl.conf: http://pastebin.com/thqvjgGJ Can anyone spot any issues with those configurations? or Have any suggestion at all? I've searched and searched but there appear to be very few people who have experienced the same. Also worth mentioning that I did a comparision between those configurations and those of a working set up and I couldn't spot anything.

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  • Port forwarding using IP Tables

    - by Darider
    I have a server with a LAN facing address of 192.168.5.100 (eth0) and another LAN facing address of 192.168.6.6 (eth1). On this server I have a Virtualbox instance of fedora running an apache webserver (on port 8080) with a bridged interface to eth1 on the host server with address of 192.168.6.7 Users on the 192.168.6.x network can access the Webserver on the Vbox instance (192.168.6.7) with no problems. My question is what kind of iptables entries or commands should be made/executed so as to allow for users on the 192.168.5.x network to access the webserver on the vbox instance. (I'm hoping their url can be something like: http://192.168.5.100:8080)

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  • Edit write-protected files by breaking hard links

    - by Taymon
    A directory which I own and can write to contains hard links to files that I don't own and don't have write permission for. I want to open and edit these files in Emacs. When I save my changes, Emacs should rename the existing hard link by appending ~, then write my new version of the file as a new file owned by me. I was under the impression that Emacs could just do this (because of the way it does backups), but it's not working; when I save, it attempts to change the file's permissions in order to write to it (and fails because I don't own the file). How do I make this happen?

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  • Slow running Ubuntu 10.10 laptop

    - by user5978
    Hello everyone. I have a slow computer. When I click on an icon say Firefox it can take 10 seconds to load. when I minimize and maximize windows you can see it happening. I get "ghost" screens where you see the window outline of the box but nothing in it or it may be white. The laptop is two years old and has these specs: Intel core two duo 2.8GHZ CPU 4GB RAM 500GB HDD 512MB Nvidia 8600GT video Realtek HD audio What is going on and where should I start looking for issues? Ubuntu 10.10 was upgraded from 10.04LTS following the instructions from the Ubuntu Wiki and it was done through the update manager GUI, not the CLI. Thanks for the help.

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  • What means empty iptables?

    - by Memochipan
    I'm using CentOS and when type the command: iptables -L -v The output is as follows: Chain INPUT (policy ACCEPT 19614 packets, 2312K bytes) pkts bytes target prot opt in out source destination Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 13881 packets, 32M bytes) pkts bytes target prot opt in out source destination What does this means I'm able to connect using SSH. Where can I see that rule?

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  • how to know which display number for the variable DISPLAY to be exported when ssh to server

    - by insidepower
    When i ssh to server using -X, i always confuse about which display number i should export. It seems to me sometimes the display number has been used by something, so what i can do is only export DISPLAY=localhost:0 && xclock export DISPLAY=localhost:1 && xclock export DISPLAY=localhost:2 && xclock export DISPLAY=localhost:... until the clock appear. Then i will use that display number. Each time log in to the server, the display number which is able to tunnel the gui data correct would be different. I know many of such similar questions has been asked and answer. However I couldn't find answer to my question, anyone know about it? Thanks!

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  • Different behaviour of script locally and over ssh

    - by neorg
    I have a script on a server-A Script-A #!/bin/bash -l echo "script-A.sh" | change-environment.sh When I ssh onto server-A and execute it, it works fine. However, when I ssh user@server-A ./script-A.sh Script-A executes, but throws an undefined variable error in change-environment.sh. change-environment.sh runs in the c shell(I have no control over the script so the method I have used is about the only way I can use it), but everything else is in bash. Had found a similar question at I can run a script locally, but cannot do "ssh HOSTNAME /path/to/script.sh". However, there was no solution to the issue and it was a year old.

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  • Access denied for user 'root@localhost' (using password:NO)

    - by murgatroid99
    I am attempting to install a network management package called cacti onto Ubuntu running under Windows Virtual PC. I attempted to install MySQL as it is one of cacti's dependencies. I can install and start the MySQL server, but whenever I try to access it in any other way, such as to change the password, I get the error message Access denied for user 'root@localhost' (using password:NO). I would like to know what is causing this and how to fix it. Edit: (just in case my comments are not visible) The answers from HD and Devin Ceartas did not work for me.

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  • mdadm raid1 fails to resync

    - by JuanD
    Hello, I'm trying to solve this problem I'm having with an mdadm raid1. I have an ubuntu 9.04 server running on a software 2-drive raid1 with mdadm. Yesterday, one of the drives failed, and so I replaced it with a brand new drive of the same size. I removed the faulty drive, copied the partition from the remaining good drive to the new drive and then added it to the raid. It re-synced and the system worked fine, until the drive that hadn't failed, was also labeled failed. Now I had the raid running solely on the new drive. So I purchased another drive and repeated the procedure above. So now I had 2 brand new drives and the raid was syncing. However, after a few minutes I checked /proc/mdstat and the raid was no longer syncing. mdadm --detail /dev/md1 shows: (sdb is the first new drive, and sdc is the second new drive) root@dola:/home/jjaramillo# mdadm --detail /dev/md1 /dev/md1: Version : 00.90 Creation Time : Sat Dec 20 00:42:05 2008 Raid Level : raid1 Array Size : 974711680 (929.56 GiB 998.10 GB) Used Dev Size : 974711680 (929.56 GiB 998.10 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 1 Persistence : Superblock is persistent Update Time : Wed Jun 2 10:09:35 2010 State : clean, degraded Active Devices : 1 Working Devices : 2 Failed Devices : 0 Spare Devices : 1 UUID : bba497c6:5029ba0b:bfa4f887:c0dc8f3d Events : 0.5395594 Number Major Minor RaidDevice State 2 8 35 0 spare rebuilding /dev/sdc3 1 8 19 1 active sync /dev/sdb3 I've tried removing and re-adding the drive a few times, but the same thing happens. The raid fails to resync. I've looked at /var/log/messages, and found the following: Jun 2 07:57:36 dola kernel: [35708.917337] sd 5:0:0:0: [sdb] Unhandled sense code Jun 2 07:57:36 dola kernel: [35708.917339] sd 5:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jun 2 07:57:36 dola kernel: [35708.917342] sd 5:0:0:0: [sdb] Sense Key : Medium Error [current] [descriptor] Jun 2 07:57:36 dola kernel: [35708.917346] Descriptor sense data with sense descriptors (in hex): Jun 2 07:57:36 dola kernel: [35708.917348] 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 Jun 2 07:57:36 dola kernel: [35708.917357] 00 43 9e 47 Jun 2 07:57:36 dola kernel: [35708.917360] sd 5:0:0:0: [sdb] Add. Sense: Unrecovered read error - auto reallocate failed So it looks like there's some kind of error on sdb (the first new drive). My question is, what would be the best approach to get the raid up and running again? I've thought about dd'ing the /dev/md1 to a blank hard drive, then re-doing the raid from scratch and loading the data back, but there could be an easier solution.. Any help would be appreciated.

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  • What is excessive swapping.

    - by amateur barista
    This post led me to ask that question. Cache contention On a large site, if you are using MyISAM, contention occurs in the database tables when the cache is forced to clear after a node or a comment is added. With tens of thousands of filter text snippets needing to be deleted, the table will be locked for a long period, and any accesses to it will be queued pending the purge of the data in it. The same is true for the page cache as well. This often causes a "site hang" for a minute or two. During that time new requests keep piling up, and if you do not have the MaxClients parameter in Apache setup correctly, the system can go into thrashing because of excessive swapping.

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  • Automate hashing for each file in a folder?

    - by Kennie R.
    I have quite a few FTP folders, and I add a few each month and prefer to leave some sort of method of verifying their integrity, for example the files MD5SUMS, SHA256SUMS, ... which I could create using a script. Take for example: find ./ -type f -exec md5sum $1 {} \; This works fine, but when I run it each time for each shaxxx sum afterwards, it creates a sum of the MD5SUMs file which is really not wanted. Is there a simpler way, or script, or common way of hashing all the files in to their sums file without causing problems like that? I could really use a better option.

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  • difference between success and failed event in auditd/aureport

    - by user112358132134
    The aureport command has two options that limit the list of displayed events to those that were successful and those that failed. Per the man page: --failed Only select failed events for processing in the reports. The default is both success and failed events. --success Only select successful events for processing in the reports. The default is both success and failed events. What does this mean? Is the failure/success with regard to the actual event (e.g., a syscall that returned non-zero) or does the failure/success apply to auditd and whether or not there was an issue in processing the event?

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