Test bandwidth between two servers

http://stackoverflow.com/questions/426272/how-to-test-internet-connection-speed-from-command-line

on machine1 (host, this one will receive)

iperf -s -p 65000

on machine2 (client, this one will upload)

iperf -c [ip of server] -p 65000

Reverse the machines to test the other way (upload->download or vice versa).

Accessing Going IP Security Camera X37L X37L20M X37L20MA

Assuming you have an IP address like 192.168.1.*

Main stream: rtsp://192.168.1.10:554/user=admin&password=&channel=1&stream=0.sdp?real_stream--rtp-caching=100

Secondary (low quality) stream: rtsp://192.168.1.10:554/user=admin&password=&channel=1&stream=1.sdp?real_stream--rtp-caching=100

Transfer Zimbra account from one server to another / between servers / Individual Zimbra account migration

http://new.spheron1.co.uk/2011/06/27/zimbra-mailbox-importexport-and-migration-of-e-mail-filter-rules/

You can export a chosen mailbox from the source Zimbra server with:

zmmailbox -z -m user@test.com getRestURL “//?fmt=tgz” > /tmp/user_test.com.tar.gz

And then import it into the destination server with:

zmmailbox -z -m user@test.com postRestURL “//?fmt=tgz&resolve=reset” /tmp/user_test.com.tar.gz

Install a Secondary/Failover IP in an Ubuntu Server 12.04 VM hosted in a VMWare ESXi 5.0 Update 1 physical machine on an OVH dedicated server

Assumptions:
- You have a dedicated server from OVH http://www.ovh.ie/ which supports virtualization
- You installed and configured the VMWare ESXi 5.0 Update 1 image from OVH (using their web interface manager and their OS image)
- You installed an Ubuntu Server 12.04 VM in ESXi
- You requested and got (by e-mail) a Failover IP by selecting your server in the OVH manager, going to Services at the bottom, clicking on on IP Failover, then clicking on "Order an IP Fail-Over" and following their wizard.

Steps (after you got the IP):
- In the OVH Manager, select your physical server from the drop down at the top.
- Click on Services at the bottom (on the page that opens about the physical server)
- Click on "Virtual Mac for VPS"
- Click on "Associate a virtual MAC to an IP address"
- Select the Failover IP you want to use, give the VM a name, and select the Virtual Mac Type (I used "OVH", it works fine with ESXi).
- Click Validate
- Copy paste the new MAC in the vSphere Client - stop your VM, right click on the VM name > Edit Settings > Network Adapter > On the right under Mac Address click on "Manual", then paste the new Mac there. Click OK and start the VM.
- Open the Console to the VM.
- Add the following to /etc/network/interfaces (I assume this file is mostly empty):

iface eth0 inet static
address FFF.FFF.FFF.FFF
netmask 255.255.255.255
broadcast FFF.FFF.FFF.255

auto eth0:1
iface eth0:1 inet static
        address FFF.FFF.FFF.FFF
        netmask 255.255.255.255
        post-up route add MMM.MMM.MMM.254 dev eth0
        post-up route add default gw MMM.MMM.MMM.254
        post-down route del MMM.MMM.MMM.254 dev eth0
        post-down route del default gw MMM.MMM.MMM.254
        dns-search YOUR.DOMAIN.NAME.THIS.IS.OPTIONAL
        dns-nameservers DDD.DDD.DDD.DDD DD2.DD2.DD2.DD2

- Here is the explanation of the IP "variables" above:
MMM.MMM.MMM.MMM = Main (physical) server IP
MMM.MMM.MMM.254 = Main (physical) server IP but with the last part set to 254
FFF.FFF.FFF.FFF = Failover IP
FFF.FFF.FFF.254 = Failover IP but with the last part set to 254 instead of the original part
FFF.FFF.FFF.255 = Failover IP but with the last part set to 255 instead of the original part
DDD.DDD.DDD.DDD = First DNS nameserver
DD2.DD2.DD2.DD2 = Second DNS nameserver (optional)
- Run /etc/init.d/networking restart
- Try to ping the VM IP

Good luck!

Read config files and show VirtualHost configuration in Apache2

apache2ctl -t -D DUMP_VHOSTS

Ubuntu Oneiric 11.10: HDMI audio out on XPS M1330 with Intel Integrated Graphics Card

1) Open Sound Settings, click on Hardware Tab, next to Profile select Digital Stereo (HDMI) Output. The Output tab should now show Connector: HDMI.
2) Open terminal, sudo alsamixer. Go to the right with the arrow keys until you find S/PDIF 1 (1, not 0 or anything else). Unmute it by pressing M. Test audio.

Installing asf_tools (Alaska Satellite Facility Map Ready) on Ubuntu 11.10 Oneiric Ocelot

http://www.asf.alaska.edu/downloads/software_tools

I assume the build-essential package and other basic tools are installed.

apt-get install zlib1g-dev flex bison

Edit asf_tools/src/to_sr/Makefile and asf_tools/src/fill_holes/Makefile and changes the line similar to:
$(CC) $(CFLAGS) $(LDFLAGS) -o to_sr $(OBJS) $(LIBS)
with this line
$(CC) $(CFLAGS) $(LDFLAGS) -o to_sr $(OBJS) $(LIBS) -lm
(add -lm at the end)

then do a normal configure / make / make install installation

Mount SSH folder/directory in Ubuntu

sudo apt-get install sshfs
sshfs user@remote-server.example.com:/remote/path /local/path

Test Zabbix UserParameter

On local machine:
su -c "zabbix_agentd -t some_key" zabbix

On zabbix master:
zabbix_get -s slave.hostname.com -k some_key

Booting from a USB stick in VMware Player

http://theholyjava.wordpress.com/2010/06/10/booting-from-a-usb-stick-in-vmware-player/

Show or Display (some) Blu Ray drive capabilities in Ubuntu/Linux

1) Download and install Nero Linux 4 (trial available)
2) nerocmd --list-drives (lists drives .. see first and second columns for drive id)
3) nerocmd --drive=1,0 --info=drive (where drive ID here is 1,0)

Sample output:
Device name : MATSHITA BD-MLT UJ240AF
Device id : 0
Host adapter number: 1
Host adapter name : unknown
Firmware Revision : 1.00
Underrun protection: supported
Drive buffer size : 2048 bytes
Mandatory BUP speed: none
Device type : WORM

Writeable media : CD-R/RW, DVD R/RW, DVD DL, DVD-RAM, BD-R/RE, BD DL
CD write speeds : 8, 24
Base speed in KB/s : 150
Readable media : CD-R/RW, DVD R/RW, DVD DL, DVD-RAM, BD-R/RE, BD DL
CD read speeds : 1, 2, 4, 8, 12, 16, 24
Base speed in KB/s : 150

Capabilities:
- Can write in Disc-at-once
- Reads CD TEXT
- Writes variable pauses in Track-at-once
- Writes CD TEXT in Disc-at-once
- Has a buffer underrun protection feature
- Can write DVD+VR
- Supports Layer Jump for DVD-R DL
- Supports Overburn
- Can write in UltraRaw 96
Ok.

Things to do after Installing Linux Mint 12 Lisa

http://www.noobslab.com/2011/11/things-to-do-after-installing-linux.html

UNetbootin allows you to create bootable Live USB drives for Ubuntu, Fedora, and other Linux distributions without burning a CD.

http://unetbootin.sourceforge.net/

Resume local file copy

curl -C - -O file:///path/to/file.txt

resumes copying file.txt to the current folder

How to reduce PDF file size from command line

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

-dPDFSETTINGS=/screen (screen-view-only quality, 72 dpi images)
-dPDFSETTINGS=/ebook (low quality, 150 dpi images)
-dPDFSETTINGS=/printer (high quality, 300 dpi images)
-dPDFSETTINGS=/prepress (high quality, color preserving, 300 dpi imgs)
-dPDFSETTINGS=/default (almost identical to /screen)

Sources:
http://www.ubuntugeek.com/ubuntu-tiphowto-reduce-adobe-acrobat-file-size-from-command-line.html
http://milan.kupcevic.net/ghostscript-ps-pdf/

Vulnerability in the WordPress King Size theme

This is the vulnerability: http://catchinternet.com/blog/timthumb-vulnerability-wordpress-security-patch/

Below is a discussion that I have been having with the creators of King Size. I personally find their response unacceptable, but I agree that themeforest is also to blame. I also do not understand why they didn't have an "update notifier" until recently. I also contacted themeforest and waiting for a reply.

-----

Hello King Size Theme team,

My server was cracked using a vulnerability found in timthumb.php, which ships with the King Size Theme.

I checked the theme page on themeforest.net and under version 3.1 it says: "Updated Timthumb (timthumb.php) for security concerns"

Did you send out e-mails to all your customers using King Size < 3.1 about this problem? If not, why not?

Thanks,
Ovi

-----

Ovidiu Dan (Ovi),

A customer support staff member has replied to your support request, #455636 with the following response:

Hello,

I am sorry to hear about your troubles but its not our responsibility to keep you informed of updates. Its yours as a buyers responsibility to occasionally check in and see if updates are available. As of v3.3 we released an "update notifier" which informs buyers when updates are available via their Dashboards.

Kind regards,
Bryce Wisekal

-----

Hello again,

I am sorry but it IS definitely your responsibility, especially when it comes to critical security vulnerabilities.

Please do the right thing and inform your customers or I will do it for you.

Ovi

-----

Ovidiu Dan (Ovi),

A customer support staff member has replied to your support request, #455636 with the following response:

Hello Ovi,

And how do you propose we do that when we do not have CONTACT to our buyers? Come on now, be sensible. When you buy a template from theme forest it IS YOUR responsibility. If you cannot deal with that I am sorry, its not our fault though. We announced this information within our comments, as well released an update. We do not have access to contact buyers due to Theme Forest controlling those rights.

As I had mentioned, I am sorry to hear about your troubles but if you came by Theme Forest from time to time and checked on the template you would have clearly known about the issues. We did our part by addressing the issue, its not your responsibility to update your template - not ours.

So please, do the right thing and accept your responsibility, because its not ours. If you disagree with this, you're more than welcome to take it up with Theme Forest and suggest to them that sellers need the ability to contact their buyers but its not going to happen. It's something authors have been asking Theme Forest for some time now. I'm sorry, but we're only able to do what we can, the rest is up to you as a buyer.

Kind regards,
Bryce Wisekal

-----

Create Tar.Gz In OpenSolaris

http://www.rasyid.net/2009/10/11/create-tar-gz-in-opensolaris/

pdflatex on Ubuntu 10.10

sudo apt-get install tetex*

sudo apt-get install texlive

HowTo: Extract an EPS from a PDF file - http://www.dhreutter.de/?q=blog/howto-extract-eps-a-pdf-file

Extract images from a PDF document - http://stefaanlippens.net/extract-images-from-pdf-documents

Notes on installing Condor on Windows / Win 7

Below you can read about some of the problems I encountered while testing Condor, along with some solutions/workarounds.

1) The Condor keyboard daemon (KBDD) does not work out of the box. If you start the condor_kbdd.exe process as the SYSTEM user (the default configuration), it will fail to register keyboard/mouse activity. Instead, you can configure Condor to not start the KBDD daemon by removing “KBDD” from the DAEMON_LIST in the configuration file. If you want to use the kbdd process you will need to run it as the the local (logged in) user.

2) When installing Condor manually you need to set the CONDOR_CONFIG environment variable *system wide* (not for the current user). Attempting to start the service when the environment variable is not configured yields this error: “Error 1067: The program terminated unexpectedly”. The manual mentions that instead of an environment variable we can also set several registry keys. I found this to be incorrect. Condor seems to completely ignore those registry keys. If I remember correctly, the installer does not even create them.

3) If the Condor service is configured to start at boot time it will sometimes (always?) fail. One theory is that this happens because Condor tries to establish network connections before the networking services are up. So you might want to delay starting the service until the machine booted up properly.