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Wednesday, August 19, 2015

Quick Link - Another Solution to gain remote access to your device at home

Note to self:
I will definitely need this very soon for my home security cameras

Remote Access with Dynamic DNS

Remote access your computer, DVR, webcam, security camera or any internet connected device easily. Dynamic DNS points an easy to remember hostname to your dynamic IP address.

Quick link - Another Hosted server solution

Am saving this link on my blog so i can refer to it later when am looking for a hosted server solution.

Servers and Virtualization

Hardware you trust: your VPS servers will be located on trustedSupermicro servers with Intel Xeon CPUs, ECC RAM and Intel SSD drive arrays. Servers are never overprovisioned, meaning you will have enough power to run your applications any time.

With OpenVZ container virtualization we make sure your VPS RAM won't be spent for running Linux kernel or system drivers. All of the memory will be available for your applications and software.

Tuesday, August 18, 2015

My Android Phone Keeps loosing the network connection

Problem:

My android device keeps loosing network connection and every time i have to reboot it or manually search for network operator before it can reconnect again.

Solved:

Lock the phone to 2G only.
This bug is common with network operators who have both 2G and 3G networks operational.
if you phone is set to "Auto" latch onto 2G/3G, it will tend to loose the network sometimes.
You will realize that if you transfer the SIM card to a 2G only phone, the situation will be normal.

once i realized that, i decided to set my phone "network mode" to 2G only and it has been stable ever since:


Go to Settings

Click More ...

Go to Mobile Networks

Network Mode

Choose 2G only


Friday, August 14, 2015

Tracking routed vlan interface statistics and bandwidth shaping on Juniper switches - ex4500 series

I have just finished provisioning two different internet customers (one supposed to be 4 Mbps and the other 3 Mbps up/down) on a Juniper ex-4500-40f series switch.
The next step was to do bandwidth limiting on these customers but i have hit 2 very annoying snags with this model of juniper switch.

1. The bandwidth policer can ONLY work for ingress traffic (this would be up-link from the customer) which is usually a non issue for the ISP because Uplink is little traffic compared to down-link!
For egress traffic, am supposed to do "bandwidth-shaping" but yet again it's not supported for logical interfaces! WTF Juniper!

2. The ex-4500 does NOT support tracking RVI (Routed VLAN Interface) statistics! meaning there is no way i will be able to track the throughput for my internet customers. This is really annoying because even you SNMP tool won't be able to monitor such interfaces no matter how fancy it is!


Sorry if you landed on this page because of the same issue. 
Funny thing is RVI stats are supported on the lower versions ex3200 and ex4200! up to now i don't know why the F*** Juniper decided to do it like this. Ideally higher switch models should inherit all the good features from it's predecessors and even get better.

Here are two screen shots from my ex4200 and the annoying ex4500!:
On the 4200 you are able to the the ingress stats whereas on the 4500 there is 0.



I really don't know if there is any work around this "show stopper" on the ex4500! please comment if you have any break through on the 4500 regarding rvi statistics or rvi egress bandwidth limiting.
will appreciate.

Thursday, August 13, 2015

Observium - Network Management and Monitoring - Another Great Free tool to Consider

Observium - Another great free network monitoring tool to consider if you are on a search for one. I already finished setting up cacti but will definitely try Observium for my next client. Can't wait to take it for a spin!

Observium - Network Management and Monitoring

Wednesday, August 12, 2015

Quick Check - Simple CISCO NAT Configuration

Refer to the network layout below:



Configuration: 
Note:- Replace the private IPs at the p2p with the public IPs supplied by your ISP.
           Replace the public dns 8.8.8.8 with your ISP DNS(s)

interface GigabitEthernet0/0
 description Connects-to-ISP-router
 ip address 192.168.201.2 255.255.255.252
 ip nat outside
 ip virtual-reassembly in
end

!
interface GigabitEthernet0/1
 description Connects-to-LAN
 ip address 192.168.1.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly in
 duplex auto
 speed auto
end

interface Loopback1
 ip address 192.168.1.200 255.255.255.255

ip route 0.0.0.0 0.0.0.0 192.168.201.1
ip nat inside source list my-access-list interface GigabitEthernet0/0 overload

ip access-list extended my-access-list
 permit ip any any

ip dhcp pool my-office-dhcp
 network 192.168.1.0 255.255.255.0
 default-router 192.168.1.1 
 dns-server 8.8.8.8
 lease 7

If you have any questions! Please leave a comment.

Friday, August 7, 2015

Quick Check Juniper-Junos "Disable and Enable vlan interface"

This command does the same thing as Cisco's "shutdown" and "no shutdown" interface commands:

> edit 
Entering configuration mode

# set interfaces vlan.231 disable 
# commit 
# exit 
Exiting configuration mode

>
> show interfaces vlan.231 terse    
Interface               Admin Link Proto    Local                 Remote
vlan.231                down  up   inet     10.0.23.1/28    
# delete interfaces vlan.231 disable 
# commit 
# exit 
Exiting configuration mode


> show interfaces vlan.231 terse    
Interface               Admin Link Proto    Local                 Remote
vlan.231                up    up   inet     10.0.23.1/28    
>

Wednesday, August 5, 2015

Land Cruiser 1KZ-TE Engine overhaul Budget List - Done in Uganda

I have just completed an engine overhaul job with my mechanic (Mr. Mpanga) along sir Apollo kaggwa road. Here is a list i received from my mechanic.
The whole job cost around 2.5 Million Uganda Shillings ( Approx 715 USD)

Engine Type: 1KZ-TE

1. Sleeves (Cylinder Liners) - 500,000 ugx

2. Piston Rings - 350,000 ugx

3. Piece Bearings - 90,000 ugx
4. Main Bearing - 120,000 ugx
5. Thrust Washers - 80,000 ugx
6. Cylinder Head Gasket - 130,000 ugx
7. Crankshaft Regrinding - 150,000 ugx
8. Valve Seals - 75,000 ugx
9. Engine Seals x 3 - 90,000 ugx
10. Cylinder Head Refacing - 100,000 ugx
11. Injector Pump Servicing - 70,000 ugx
12. Nasal Servicing (4 pieces) - 80,000 ugx
13. Timing Belt - 120,000 ugx
14. Fan Belts x 3 - 80,000 ugx
15. Oil Filter - 30,000 ugx
16. Engine Oil - 96,000 ugx
17. Sleeve Replacement Labor - 150,000 ugx
18. General Labor - 200,000 ugx

Total = 2,511,000 ugx (1 UGX = 0.000285720 USD)


video

Thanks to my Mechanic Mr. Mpanga (0752031565) for a job well done. I highly recommend him if you are thinking of doing an engine overhaul (Suzuki and Toyota).
video




Mutual Agreement for Sale of Motor Vehicle - Republic of Uganda

Here is a quick and easy agreement you can sign between the seller and buyer (includes witnesses) of a motor vehicle in Uganda. I know most of us are lazy to draft an agreement, so here is one you can download and print to save you the hustle.

Please note that you still have to go ahead and process the motor vehicle transfer to your names to make it official with the revenue authority.

Plus, make sure to supplement this agreement with national recognized IDs (e.g. driver's permit, Passport, National ID), and a copy of the car log book.

I hope this eases your car deal.

DOWNLOAD HERE

Tuesday, August 4, 2015

Vodafone Uganda saves you the hustle of cutting your SIM card every time you change your phone

Thanks to the new Vodafone Uganda SIM card, it comes in a "3 in 1" format already cut to fit all sizes of SIM card slots.
See the pictures below how the SIM can be assembled to fit all SIM sizes.

Big Ups Vodafone Uganda, this was a good idea.