Ivairus manualai 

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Uzrasiukai OpenVPN i DD-WRT Linksys 1900AC 

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Linksys WRT 1900 ACS instaliacija DD-WRT ir gryzimas i orginalia firmware 

Installing DD-WRT
1. Visit the DD-WRT FTP to get the latest BS build, pick the year (2015), pick the current build (the latest is 12-01-2015-r28397) and find your current WRT1900AC (Just press Ctrl+F, type in wrt1900ac since there's a lot of routers in the list... it begins with linksys-) and pick the model you have (it currently shows the ac, acs and v2).
2. Download the factory-to-ddwrt.img
3. Login to the router stock firmware at (or whatever address you have it configured as) and click connectivity on the side. There will be a way to upload firmware called "Manual". Choose the img file you downloaded and click start. You will get a few warnings... just say yes and let it upload. The router will reboot eventually and you'll need to navigate back to (The screen will show waiting... but it will be waiting forever until you renavigate).

Congratulations. You just installed DD-WRT. You can now go from there and setup your user/password and configure your router.

I read somewhere to upgrade to a newer build you should return back to the stock firmware and upgrade from there rather than using the DD-WRT interface so you don't overwrite the partition stock is on. Doing so would make it harder to recover the unit in the event of misconfiguration or if a setting bricks the unit.

Booting back to stock from other patition
When you install DD-WRT over stock, it installs on a different partition. You can use the following command by entering it in DDWRT commands on the administration tab, Telnet or SSH to determine what partition DD-WRT is running on.
ubootenv get boot_part

The last number it returns is the partition (it will return 1 or 2). In my case, DD-WRT is on partition 1, so to return to Stock, enter (If yours returns 2, put 1):
ubootenv set boot_part 2

and then reboot. You can use the command

To reset and boot to stock if you brick DD-WRT installation
1. Assuming the router is on, turn it off.
2. Turn it back on... the power light will illuminate and then go out briefly as it prepares to boot. As soon as it goes out, turn it off again. Repeat this step three times, leaving the router on after the third time you turn it off.
3. Let it boot. It should return to stock after you let it boot.

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Zoneminder i Ubuntu serveri tiesiog užrašai kad nepamiršti 

Ubuntu 14.04 - ZM 1.26.5 or later to 1.30.0 or the latest PPA version

Become root

sudo su

Add Repository

Note: if you need to remove a repository use: add-apt-repository --remove ppa:iconnor/zoneminder

add-apt-repository ppa:iconnor/zoneminder

apt-get update

Stop Zoneminder

service zoneminder stop

Upgrade the installation

apt-get upgrade (may return nothing to upgrade)

apt-get dist-upgrade

You will be asked if you want to replace /etc/init.d/zoneminder. Choose "Y"

With ZM 1.30.3 the database will automatically upgrade.

Add back the delay to allow MySQL to start before Zoneminder

nano /etc/init.d/zoneminder

Add sleep 15 as shown:

start() {
sleep 15
echo -n "Starting $prog: "

Ctrl+o Enter to save

CTRL+x to exit

Remove symbolic link

rm /etc/apache2/conf-enabled/zoneminder.conf

Set permissions of /etc/zm/zm.conf to root:www-data 740

chmod 740 /etc/zm/zm.conf

chown root:www-data /etc/zm/zm.conf

Enable Zoneminder and rewrite

a2enconf zoneminder

a2enmod rewrite

Start Zoneminder (Note: Zoneminder may have started automatically after the dist-upgrade)

service zoneminder start

Add timezone to PHP

nano /etc/php5/apache2/php.ini

Search for [Date] and make changes as follows for your time zone

; Defines the default timezone used by the date functions
; http://php.net/date.timezone
date.timezone = America/New_York

Ctrl+o Enter to save

CTRL+x to exit

Restart Apache

service apache2 restart

Open Zoneminder. Click on Options - Paths

Change PATH_ZMS to /zm/cgi-bin/nph-zms


Pic stream URL For FOSCAM PI9805I

Source Type - Remote

Remote Protocol - HTTP

Remote Method - Simple

Remote Host Path - /cgi-bin/CGIProxy.fcgi?cmd=snapPicture2&usr=USER&pwd=PASSWORD

Target colorspace - 24 bit colour

Capture Width (pixels) - 1280

Capture Height (pixels) - 960

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Programuojam procesoriukus 

Niekaip nesugebėdavau suprasti užrašų tokių kaip "DDRC |=(1<<1)" arba "DDRC &=~(1<<2)" O vikas čia paprasta. Užrašas 1<<1 1 paslenka i kairę per vieną bitą arba 1<<2 į kairę per du bitus. Toks užrašymas naudojamastam jog nereikėtų rašyt daug nulių arba galvoti kaip tai užrašyti kita kokia skaičiavimo sitema. Paprašciausiai nurodom kad tai bus 1 kuris turi stovėti (būti paslinktas) per kiek tai pozicijų į kairę. Rezultate, pasislinkę per vieną poziciją, gauname 0000 0010 o per du 0000 0100 nes pradžioje turėjome 0000 0001.
Toliau jei reikia nustatyti ta konkretų bituką į 1 tuomet paimama jau esanti porto reikšmė (tiesiog prieš simbolį "|" praleidžiama DDRC) ir su ARBA "|" pagalba gauname tik to konkretaus bituko nustatymą į 1 Sakykim mes nežinom kokia buvo porto reiksmė, tad ja pažymėsim xxxx xxxx. Musu turima reišmė po paslinkimo yra 0000 0010. Atliekant ARBA gausime xxxx xx1x nes:

x ARBA "|" 1 = 1 prie betkokiu x reikšmių (x gali būti tik 0 arba 1)

O jei reikia nustatyti į 0 tuomet paslinkta reikšmė invertuojama su "~" ir naudojamas IR "&" loginis sulyginimas. Sakykim mes nežinom kokia buvo porto reiksmė, tad ja pažymėsim xxxx xxxx. Musu turima reišmė po paslinkimo ir invertavimo yra 1111 1011. Atliekant ARBA gausime xxxx x0xx nes:

x IR "&" 0 reikšmė keičiasi 1 tik jei abudu yra 1. O mes lyginam su 0 tad mums reikalingas bitas visuomet įgaus 0 reikšmę ir rezultate gausime xxxx x0xx.

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