miércoles, 18 de mayo de 2011
Micronet SP3367D Port Forwarding - DMZ
Si tienes un Modem Micronet SP3367D ADSL2+ Router, que tiene un software como el de la figura esto podria serte util si necesitas servicios detras de tu IP. Despues de varios intentos de configurar el port forwarding, intente con la opcion DMZ, y con eso pude conseguir casi el mismo resultado. Conceptualmente es distinto, pero en la practica da lo mismo. La unica diferencia es que asi todos los servicios/puertos se redireccionan al IP al que apunta la DMZ, que tampoco es tan grave, basta con configurar un buen firewall en el IP destino y listo.
sábado, 12 de marzo de 2011
Ubuntu Kernel updates and Nvidia drivers problems
I have a PC with this on board nvidia chip:
Many times, after system updates which includes kernel updates, X Window configuration for nvidia fails to start X Server.
From that scenario, I've found two possible solutions:
1) Use the command line installer, like these:
These approach, of course assumes that you are connected to the Internet, which is not always true if you are using wireless, for instance, by default Ubuntu uses gnome's network-manager to start your wireless networking.
2) Use an alternative xorg.conf to start with a minimal configuration and use the System/Administration/Additional Drivers
Remembering 1998, my first year with Red Hat Linux 5.2, back then, I came up with this minimal X Window configuration, with vesa driver, which should work in most chipset.
By replacing
--- start xorg.conf-vesa ----
--- end xorg.conf-vesa ----
And use the System menu to fix you NVidia Driver configuration. After downloading and installing the package, you will need a reboot, and voila, you're again with your NVidia Driver up and running.
00:0d.0 VGA compatible controller: nVidia Corporation C61 [GeForce 6150SE nForce 430] (rev a2)
Many times, after system updates which includes kernel updates, X Window configuration for nvidia fails to start X Server.
From that scenario, I've found two possible solutions:
1) Use the command line installer, like these:
sudo nvidia-installer --update
These approach, of course assumes that you are connected to the Internet, which is not always true if you are using wireless, for instance, by default Ubuntu uses gnome's network-manager to start your wireless networking.
2) Use an alternative xorg.conf to start with a minimal configuration and use the System/Administration/Additional Drivers
Remembering 1998, my first year with Red Hat Linux 5.2, back then, I came up with this minimal X Window configuration, with vesa driver, which should work in most chipset.
By replacing
/etc/X11/xorg.confwhith this one, you can start X Window from command line:
--- start xorg.conf-vesa ----
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Module"
Load "glx"
EndSection
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
EndSection
Section "Device"
Identifier "Device0"
VendorName "NVIDIA Corporation"
Driver "nvidia"
Option "NoLogo" "True"
EndSection
--- end xorg.conf-vesa ----
startx
And use the System menu to fix you NVidia Driver configuration. After downloading and installing the package, you will need a reboot, and voila, you're again with your NVidia Driver up and running.
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