Welcome to It-Slav.Net blog
Peter Andersson
peter@it-slav.net

I've already got a female to worry about. Her name is the Enterprise.
-- Kirk, "The Corbomite Maneuver", stardate 1514.0

Background

After struggeling with my Linksys WRT-160NL to get OpenWRT stable I finally gave up. It ended upp with DD-WRT instead. Unfortunatly DD-WRT do not have the functionality I want like:

-rndis device so I could use my Android phone to connect to Internet

-1-wire device support

-Nagios agent

The solution was to buy another device where OpenWRT support is working better with USB and Gigabit interfaces. After some research I found TP-Link TL-WR1043ND for approx 50€.

  Read the rest of this entry »

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Background

I have a need of GPS tag my digital photos. Unfortunatly a GPS device to my camera costs approx 230 Eur. In my humble opinion I think that is way of, especially considering that with some software in the camera any standard USB GPS reciever would do the job. They cost approx 40 Eur.

I have an Android phone where there is tons of apps that could create a GPS log whenever I want to, however it drains the battery in just a couple of hours. I want to track my routes at least a whole day without the need to charge.

The solution is to buy a GPS logger and after some research I found Ventus GPS Route Logger G730, and it looked like it would work with Linux.

This article will describe my experience making the G730 Ventus GPS Route Logger and Linux.

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Presenting collected Nagios data has been cumbersome. But now with op5 added funtionality, storing the data in a database makes it much easier. Morten Bekkelund has created a nice dashboard typically used in NOCs.

The dashboard has been modified and improved by the community and an example can be seen at op5 sandbox dashboard and can be downloaded from op5 community.

The original project place is http://dingleberry.me/2010/04/our-new-dashboard/

 

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News in op5 Monitor 5.3

 

 

  • Avail and SLA reports including performance graphs

     

op5 Monitor 5.3 introduce the possibility to include performance graphs in avail reports. This mean you can, for example, create a response time report and not only get the availability but a graphical representation of the actual response times. This will, for instance, help the user in capacity planing since the graphs may present trends that show when disks are full, response times exceed threshold etc. Read the rest of this entry »

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Filled Under: Uncategorized
10
Dec

And so it has come. The day when Merlin outgrows its infancy is at hand.

The rite of passage into adulthood was smoother than expected, but not
without minor bumps. As with people, those bumps made the code stronger.

Testing would be most welcome.
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Filled Under: Uncategorized
10
Oct

 

As everybody knows, the answer is 42.

Today is the date 101010, translate that binary number to decimal, you get 42.

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Background

When I was preparing a presentation about what op5 is doing and our contribution to the community, I went to ideas.nagios.org. When I browsed the list of the biggest issues with Nagios I found out that op5 has packaged and solved them all in op5 Monitor. I encourage everyone to take a peak at the list and judge for them self what platform you want to use for your enterprise monitoring solution.

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When there is summer and Scandinavia closes down it is hard to be a geek. Everybody, including me, moves out to small cottages in the forrest where 3G coverage is bad which gives low bandwidth a new meaning. 

 

I have found one way of still doing geeky things combined with vacation. That is update OpenStreetmap. Take a peak at my updates at:

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inspiration_day_logo

We would like to meet with you on an op5 Inspiration Day in September. It will be a day with topics like IT operations, cloud monitoring, virtualization, outsourcing and how to get control of everything in an easy way. The most important thing is to meet and listen to other users, hear about the latest trends, have fun and be inspired,  as simple as that. So take the opportunity and register your interest today as the seats are limited!

Most Welcome!! Read the rest of this entry »

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Background

Finally it has arrived, Android 2.2 Froyo to HTC Desire. When I installed it I run into several problems and this is my guide how I solved it. It was a rather frustration experience and took a long while to solve. I ended up with a phone where almost everything was gone and I have to reinstall all my apps and configurations again.

I have not rooted my phone or changed anything that HTC or Google allow, so no rooted phone. I’m probably a poweruser but there is no obvious reason why I ended up with all these problems.

During this process I tried to find any information at HTC support site but I could not find anything that helped me. The best source of information is to use different user forums. My opinion is that HTC support web is crap.

This guide shows how I solved the problems I run into, I guess there is better way of doing it because this was a cumbersome and painfull process. I do not take any responsiblity if you end up with a bricked phone or loss of data.

Happy reading!

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Background

I wanted to use a 3G dongle with a twin SIM card as my Internet connection when I’m traveling. I have earlier decribed howto share the Internet connection and make it more flexible by using an OpenWRT router with USB interface as a bridge between Wlan and 3G/GPRS provided internet.

Unfortunatly Tele2s support personel cannot keep track of the unlogical rules among their different subscriptions so they fouled my to buy a twincard to my regular subscription and use that for data. After a couple of more calls to Tele2, including that they listened to a recording of when I ordered the twincard I have to give up that track because it was not possible. The twincard only works for phone calls, not data connections and especially not when I had a flatrate subscription on my master SIM card.

After some investigation I came to the conclusion that I have to use my Regular phone, a HTC Desire with Android as my connection to internet.

Unfortunatly the work done with getting the USB 3G dongle was a waste of time.

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Op5_cloud_monitor_large
 
 

op5 is the leading provider of monitoring software in Europe. op5 uses Open Source and their monitoring services are now available in the Cloud via City Cloud, a cloud computing service from City Network. By introducing monitoring in a new business model, customers are now able to get professional monitoring in the Cloud which is both more cost-efficient and flexible.

By providing monitoring in the cloud op5 are able to give their existing customers an external solution to monitor their web based services, regardless if they are inside or outside the cloud. This gives the customer the ability to measure and control the user experience in a specific service. City Network also benefits from the introduction of op5 Cloud Monitor. The 500 customers using City Cloud can now create servers with the sole purpose of monitoring their virtual machines directly through the service provided by op5.

– The fact that op5 introduces their external monitoring services in the cloud using City Cloud is a great acknowledgment, not only for City Cloud but also for cloud computing in general. It´s the beginning of a new era where both small and enterprise companies can benefit from the cloud and services within the cloud says Johan Christenson, Chairman at City Cloud.

– Being the leading provider in any field means that you always need to be innovative both with your products and your business models. Providing our monitoring service in City Cloud is a natural step for us and creates great advantages for our customers. More flexible, installed and ready within 15 minutes and cost efficient are the key ingredients that we think makes this solution suitable for everyone in need of professional monitoring says Jan Josephson, CEO at op5.

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Filled Under: english, op5

 

Background

After waiting for the Hummingbird release for the LaFonera 2.0G a long time and discussed with the Fon support team when 3G dongles will work, I gave up and installed OpenWRT on my LaFonera 2.0G router.

 

I’m sorry FON, you have a cool idea and nice routers but your unlogical approach to the users and communtity, finally got me to install plain OpenWRT instead.

 

Installation

After alot of googling and testing and downloading, reading and so on, I finally run into a guide that worked for me.

Most of the descriptions and howto assumes that the RedBoot will accept to download a new firmware via TFTP, this is true with the early releases of 2.0G , but the one sold now do not have this feature.

The trick is to install a firmware that allows changing the RedBoot partition of the memory, change the RedBoot parttion and install OpenWRT via TFTP.

 

The guide is unfortunatly in French, but google translate helped me to translate it to English.

The pitfalls I run into is to reboot the device several timesafter installing the hacked version of FON firmware: FON2202_2.2.5.0_Flipper_RedBootC_VoteGOP.image

The only difference is that I used a later version of OpenWRT. I used Backfire 10.03 instead of Kamikaze 8.9.1

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Background

After succesfully installed my new Linksys WRT160NL with OpenWrt, the next step is to configure it. As the summer is approaching and my need for Internet access in our summer cottage will arrise. The summer cottage is in the middle of nowhere so it would be handy to put a USB dongle and the Wlan router in the spot with best 3G field strength and use the WiFi to connect several computers to the router and Internet.

The 3G USB modem is a Huawei modem I bought for 20 EUR and unlocked using this guide.

I found an excellent guide describing excactly what I wanted todo but it did not work 100% in my environment so I will describe what I did to get it running. Read the guide to get background and deeper explanation of how things are done. This guide assumes that you have read the guide, basic knowledge of OpenWRT, howto edit files in a Linux environment and so on. Read the rest of this entry »

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Background

After getting fedup with the bad fon support I decided to give a new wireless router a try. After browsing internet and openwrt forums I thought that a Linksys WRT160NL would fulfill my requirements:

The requrements are:

  • N
  • 3G USB dongle
  • Cheap

  Read the rest of this entry »

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26
May

This is old news but still important.

 

- OpenBSD 4.7 RELEASED -------------------------------------------------

May 19, 2010.

We are pleased to announce the official release of OpenBSD 4.7.
This is our 27th release on CD-ROM (and 28th via FTP).  We remain
proud of OpenBSD's record of more than ten years with only two remote
holes in the default install.
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25
May

 

I have registred me to attend the open Splunk event in Stockholm. Within 24 hours I got an email telling that they do not want competitors at the event and would like to discuss the purpose of me attending.

I called the Splunk representative and told him that op5 thinks Splunk is a competitor in some cases and in some cases we have products that run in parallel at customer sites. We want to integrate op5 Monitor with Splunk because we have got the question a couple of times from customers and potential customers. My intention of attending the meeting is to get a better understanding of Splunk so op5 can integrate our products, so our customers get the products that suits them best. If Splunk wants to be part of the integration, the better.

The Splunk representative still do not want me to attend. At Splunk they will discuss this matter internally but so far, this is their view.

 

I would really like to make a parallel with another op5 competitor, Würth, at their event they invited op5 as key speaker and I really recommend Splunk to reconsider their decision.

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Filled Under: english, op5, op5 Monitor
25
May

 Toda

VOIP Today magazine releases its 8th the postscript to www.voiptoday.org

VOIP Today magazine is a freely available and independent online publication presenting up-to-date VoIP news and information covering all aspects of the VoIP technology, internet telephony solutions, networks, phones, security, internet telephony marketplace, mobile communications, VoIP forums and call center solutions. It has strong relationships with members of the VoIP community and is rapidly building a unique, high-quality community of VoIP users and vendors.
VoIP Today magazine is building tomorrow’s VoIP community.

Share in building tomorrow‘s community by joining VOIP Today community
 

VOIP Today magazine 8th issue

Download NOW!

 

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I’m the happay owner of a Huawei E1750 modem and it is real easy to get it running in Ubuntu. This guide will probably work with many other 3G USB modems.

Just type from the command line:

sudo apt-get install usb-modeswitch

Plug in the modem

Go to the Network manager and enter your Mobile Broadband credentials and now it works!

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I found a new favorite app to my Android, mythmote.

By using it you can turn your Android into a remote control for MythTV. On the mythfrontend telnet control must be enbled and it is found under Setup-Setup-General and check  "Enable Network Remote Control Interface".

The Android uses wifi to connect to the telnet server at the mythfront.

 

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Filled Under: Android
02
May

 

I wanted to unlock my operator locked Huawei e1750 modem. After googling I found this page in swedish.

The unlock code can be calculated by using the IMEI number, the unlock code is sent by using AT commands.

I have succesfully tested this on e1750 and e1550.

I also tried it on e220 and it did not work.

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Filled Under: english, Hints, sysadmin

UPDATE 2014-07-07:

op5 has released a native mobile app that are secure and uses op5 Monitor APIs. Please read more at:

http://www.it-slav.net/blogs/2014/07/07/op5-releases-mobile-app-for-secure-monitoring-on-mobile-devices/

 

 


With my new and fancy HTC Desire I wanted to look at my Nagios or op5 Monitor status. I have found two apps Nagroid and NagMonDroid.

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I wanted to use the Android SDK on my Ubuntu machine, mainly to grab screenshoots but also to play around with it.

 

I followed the guidelines at this guide, but it did not work. DDM just show garbage as the device and when trying to get a screenshoot it complained with:

54:42 W/ddms: Unable to get frame buffer: device (????????????) 
request rejected: insufficient permissions for device Read the rest of this entry »
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After waiting for several weeks, my new phone, a HTC Desire has finally arrived. I have been a heavy cellphone user since started working as a Tivoli consultant in -98. I bought my first cellphone -94 and have had several so called smart phones both from Nokia and Ericsson.

 

For the first time I felt that this is more than a phone, for the first time calender integration works, for the first time I can use the builtin GPS, for the first time accessing the web with a phone works, for the first time downloaded software really works.

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23
Apr

 

I have not updated my blog lately because of heavy traveling. In Tuesday, after visiting GoOpen 2010, I took this picture at Gardemoen, Oslo. I was very lucky because my flight was DY3774

It seams like I was in luck and used an ash hole to get home:-)

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Filled Under: Cool things




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