Host your website home and dynamic update dns zone on zoneedit.com
This week I tried to find a solution for hosting my website (www.syshalt.net) home on a small server. I had all resources but no fixed IP in order to host DNS Server in my location. I have an ultra-fast connection but I`m connecting using PPPoE and after each disconnect and reconnect my IP changes.
After some time researching on internet I found that there are free solutions to this approach, and you can host your website on your home server.
First this you need to do is to go on www.zoneedit.com and register an account. Zone Edit hosts for FREE a Dynamic DNS Zone. What that means? Well they host for you DNS zone and you can update dynamic the DNS when your ip changes. After you register on zoneedit, create a zone name with your domain name and set the TTL to 300. Now you will need to go to your domain registrant account and change the DNS servers to the ones provided to you from zoneedit.com (when you log on member area, on the left side under "Host Status")
The final step is to install a client that updates on zoneedit.com your WAN ip every time it changes.
Installation on Windows:
After searching a windows client that can be installed as a windows server, and what I found did not worked as expected, I decided to create my own client that has no GUI, it runs only as a windows server and updates the zone automatically on zoneedit.com
zeDynDNS Version 1.1 - Download
Changes
- Fixed some issues on event messages handling.
The setup will install the client in C:\Program files\zeDynDNS and register automatically as windows service. After install go to installed folder and open zeDynDNS.ini in order to configure username, password (for zoneedit), domain zone (to be updated), update interval (default 5 minutes). Reboot your server or restart the service (Start -> run -> services.msc and find Zone Edit DynDNS) in order to apply the new settings.
Installation on Linux/UNIX (info from zoneedit.com)
Recommanded client by me: http://encodable.com/eponym/ (I used this on a linux server and works very good)
You can also use these commands:
lynx -source -auth=username:password 'http://dynamic.zoneedit.com/auth/dynamic.html?host=www.mydomain.com'
or
wget -O - --http-user=username --http-passwd=password 'http://dynamic.zoneedit.com/auth/dynamic.html?host=www.mydomain.com'
PPP users should place one of the above commands (or a perl client) in the file /etc/ppp/ip-up or /etc/ppp/ppp.linkup, which are called whenever a ppp connection is made.
Users of dhcpcd may place these commands in the file /etc/dhcpc/dhcpcd-eth0.exe or /etc/dhcpc/dhcpcd-eth1.exe which are executed whenever a new dynamic IP address is acquired.
More info you can find here: http://www.zoneedit.com/doc/dynamic.html
Install iOS 4.3b2 on iPad and jailbreak (tethered) – fully working
Today I installed for test on my iPad, iOS 4.3b2. Unfortunelly I don’t have an developer account and my UDID is not registered anyware so…I was stuck on the Recovery screen. Researching on internet, I found that you can bypass this very easly.
This is how you need to do in order to bypass UDID activation and jailbreak iOS 4.3b2:
1. If you already had a jailbroken phone/ipad/ipod and you modified the hosts file from (windows: c:\windows\system32\drivers\etc) – (mac: /private/etc/hosts) comment out the line: 74.208.105.171 gs.apple.com
I suggest to download TinyUmbrella http://thefirmwareumbrella.blogspot.com/ and save your SHSH blobs for 4.2.1 and 4.3b2 so you can restore in future.
2. Now put your iPad in DFU mode pressing Main button + Power Button same time and wait 10 seconds, after that release the Power Button but keep Main Button pressed another 10 seconds.
3. Restore iDevice to iOS 4.3b2 (Press to download; search for: iPad1,1_4.3_8F5153d_Restore.ipsw)
4. After restore put device again in DFU mode using redsn0w 0.9.7b6 Mac only (press to download) or redsn0w 0.9.6b8 Windows only (press to download). Now click browse for the iOS 4.2.1 firmware (press to download). Look at the images bellow:
Connect your device TURNED OFF. Press Next and follow instructions how to put in DFU mode.
redsn0w will jailbreak your iPad and will install Cydia.
5. After reboot you will notice that you are still in recovery mode. In order to bypass this, connect iPad to your computer, now using iSpirt for windows (press to download) or iPhone Explorer for Mac (press to download) browse to /System/Library/CoreServices/SystemVersion.plist like in the picture attached bellow:
Remove:
<key>ReleaseType</key>
<string>Beta</string>
6. After pressing Save button just reboot the iPad, let him boot normally to Recovery Screen connected to computer, then open iTunes and it will automatically activate your iPad.
7. In order to use the iPad in jailbreak state you will need to shutdown again. Then put it normally like in Step 2 in DFU mode. Download tetheredboot-syshalt-4.3b2.zip (press to download), unzip then open tetheredboot.bat (not the .exe one) and he will start to upload the new patched kernel and boot tethered state (it will appear a white screen, don’t worry, just wait he will, boot into SpringBoard in around 40 seconds).
Here are some screenshots that prove is working.
IMPORTANT!!
Every time you will reboot the iPad, need to connect him at computer in DFU mode, and boot tethered using tetheredboot.bat
Prevent Winmail.dat in mail attachment (Exchange 2007)
One of our clients reported today that some of his employees send messages with winmail.dat attachments. They have Exchange 2007 installed as they main mail server.
The fix is pretty easy:
Go to Microsoft Exchange Console –> Organisation Configuration –> click Hub Transport –> select Remote Domain. Go to the properties of Remote Domain, click on Message Format tab then –> Exchange rich-text format –> Never Use then go to –> Character Sets –> MIME character Set - Select none & Non-MIME character Set - select none.
Blue Screen of Death (BSOD) on Windows 2000 Server
I recently had and intervention on a company that reported a blue screen of death on one of their servers.
Error was:
0x0000007B
INACCESSIBLE_BOOT_DEVICE
The server had the role of SQL Server for one of their ERP applications. Specs of so called “server” were:
Intel Core Duo CPU
2 GB RAM
2 x S-ATA HDD (RAID1)
In fact this was a normal PC, with the function of a server. The bad idea was to make on this system PC a RAID1 using that motherboard and no additional controller.
Going to BIOS I found out that settings were reset by the motherboard battery malfunction and the on-board mode for HDD controller was set to S-ATA mode and not on RAID.
After fixing the problem, their server booted flawless into the windows.
I know this seems a silly and simple idea, but hope it helps people who encounter this type or error on their systems, even if they have server or pc systems.
Java on iOS 4 (iPhone)
Recently I had done some research about Java VM running on iPhone devises. At the moment Apple does not support java application and from what Steve Jobs said, there is not plan in the future to do so. Lucky we can have Java VM on our iPhones.
In order to do this you will need of course to jailbreak you iPhone and install OpenSSH and APT-Strict application from Cydia, then SSH to your iPhone IP with username: root and password: alpine and trype to install java this commands:
1. apt-get update
2. apt-get upgrade
3. apt-get install jamvm jikes classpath iphone-java
Here is an example of HelloJava application:
Create a new file with command nano HelloJava.java and write the code from bellow.
public class HelloJava {
public static void main(String args[]) {
System.out.println(“Hello, Java”);
}
}
Now ctrl+x to save and exit then compile the source file:
jikes –cp /usr/lib/rt.jar HelloJava.java
Now you can run the application using:
java HelloJava
Compile C applications with gcc on iOS 4 (iPhone)
I search a lot on internet how to do this, and I found some info from Anastas Stoyanovsky. Most people posted that if you install libgcc on iOS 4 it will crash at boot but this is not true.
Here is what you need to do in order to be able to compile and run a C application on iphone:
1. You will need to Jailbreak the iPhone first, search on google for more info.
2. Install OpenSSH from Cydia.
3. Connect iPhone to your wireless network and SSH to it.
4. Download this application using: wget http://www.syshalt.net/pub/iphone/gcc-iphone/fake-libgcc_1.0_iphoneos-arm.deb
5. Install libcc using: dpkg –i fake-libgcc_1.0_iphoneos-arm.deb
6. Install iphone-gcc using this command: apt-get install iphone-gcc
(you can download this version from my website: iphone-gcc if does not work on your device the one that is installed by default)
7. Download using: wget http://www.syshalt.net/iphone/gcc-iphone/sdk-2.0-headers.tar.gz
8. Untar with command: tar -xvzf sdk-2.0-headers.tar.gz
9. Enter in the new created folder with: cd include-2.0-sdk-ready-for-iphone
10. Copy all files to include folder with command: cp –r * /usr/include
11. Now type: cd .. in order to return to the previous folder
12. Download using: wget http://www.syshalt.net/iphone/gcc-iphone/gcc_files.tar.gz
13. Untar with command: tar -xvzf gcc_files.tar.gz
14. Enter in the new created folder with command: cd gcc_files
15. Copy all files to /usr/lib using command: cp –r * /usr/lib
16. Install ldid to sign the application (this will prevent iOS to kill the application at startup) using: apt-get install ldid
17. Sign your compilet aplication using: ldid –S <application>
18. Run the application using: ./<application>Suggestion: Install using: apt-get install nano
This will help you code easy directly from terminal.
Here is an example of hello world using C and gcc to compile on iPhone iOS 4:
I used nano hello.c in terminal to open a new files and writed this simple application:
#include <stdio.h>
int main()
{
printf("hello, world\n");
return 0;
}
and then CTRL+X to save it, then I typed: gcc –o hello hello.c and after that ldid –S hello
Now you can run your application using ./hello
ITCongress 2010
Acum cateva zile s-a terminat IT Congress editia II. Eu am fost unul dintre baietii din staff-ul tehnic care am prezentat tehnologii VMWare, Wyse, 10zig ma refer aici cu accent deosebit pe partea de VDI (Virtual Desktop Infrastructure).
Lume a fost si destule intrebari de asemenea, totusi timpul alocat subiectelor din pacate, a fost foarte scurt, nu prea am avut timp sa explic si sa raspund la intrebari asa cum mi-am dorit si cum mi-am planificat de la inceput.
Despre ce am discutat poate va intrebati cei care nu ati fost?
- VMWare View 4.0 (integrare AD, permisii / user, tipuri de grupuri de masini, linked clone)
- Wyse (P20 Thin Client cu PCoIP, demo multimedia, integrare cu view manager)
- Wyse (V10L Thin Client cu RDP si TCP, usb redirect, sunet bi-directional integrare cu view manager)
- 10zig (cu RDP 7, sunet bi-directional cand te conectezi pe Windows Server 2008 R2)
Atasez cateva poze de la IT Congress 2010.
1) Pregatiri
2) De sus in jos (Cisco Nexus + NetApp Storage)
2) De la stanga la dreapata (V10L, 10zig, P20 cu PCoIP)
3) Stand VMWare cu Thin Clients, fiecare ruland un trailer pe RDP si PCoIP
5) Una din prezentarile VDI si lumea prezenta.
(am sa revin cu mai multe poze & video, cele postate sunt facute de mine cu telefonul si nu am avut timp de prea multe)