Ksplice, actulizar el kernel sin reiniciar

Queridos lectores, se acabaron esas tardes en la oficina a esperar que todo el mundo se valla para reiniciar una maquina, eso se acabo. La gente de ksplice ha pensado en esto y nos ofrece su software para poder tener la máxima disponibilidad.


Funciona congelando el sistema dejando solo un proceso abierto, entonces es cuando se actualiza el kernel, una vez actualizado se descongela el sistema con el kernel nuevo.

Si tenemos Ubuntu lo podemos conseguir gratis, si no debemos abonar cerca de 4 dolares al mes.

Fuente aquí. 

vlan configuration - Linux and Cisco Catalyst L2

first install linux PC routernya use, up to want to wear anything ... but if I still use slackware. information, download the VLAN package at http://www.candelatech.com/ ~ greear /

extract tar-zxvf *. tar.gz vlan (make sure the kernel is in use already support 802.1q) "but surely if we are using sekarang2 kernel must have support browww" into the vlan directory and build with the make command .... after the build up vconfig. this program to manage all vlan configurations.

ok ".. do it"

first turn off eth0 on linux pc router [# ifconfig eth0 down], we activate the eth0 interface by giving ip 0.0.0.0 [# ifconfig eth0 0.0.0.0 up].

vlan address configuration information [vconfig add eth0 # 1] order to enable vlan 1, then the system will create a device linux vlan0001.

vlan0001 given ip at [# ifconfig-i vlan0001 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255 up]

see by using the command [# ifconfig-a]

command to do the same in well to create another vlan

vlan 2:

# vconfig add eth0 2

# ifconfig-i vlan0002 192.168.2.1 netmask 255.255.255.0 broadcast 192.168.2.255

vlan 3:

# vconfig add eth0 3

# ifconfig-i vlan0003 192.168.3.1 netmask 255.255.255.0 broadcast 192.168.3.255

So much configuration on the linux system, now entered into the console or telnet cisco catalyst, and then give the fa0/24 trunk mode in order to synchronize with a PC eth0 on linux router has the configuration, well here it is the configuration

# conf t

# interface FastEthernet0/24

# duplex full

speed # 100

# switchport trunk encapsulation dot1q

# switchport mode trunk

the right to synchronize between your PC and router linux Catalystnya ... then we stepped into the last event ... ie eating hehehe. ngak wall.

last step we are binding vlan configuration on the PC linux router to an existing port on the Catalyst

vlan 1 on port 1, then we must provide a configuration like this:

# conf t

# interface FastEthernet0 / 1

# duplex half

# switchport access vlan 1

# switchport mode access

vlan 2 on port 2, then we must provide a configuration like this:

# conf t

# interface FastEthernet0 / 2

# duplex half

# switchport access vlan 2

# switchport mode access

vlan port 3 on 3, then we must provide a configuration like this:

# conf t

# interface FastEthernet0 / 3

# duplex half

# switchport access vlan 3

# switchport mode access

finished ..

NOTA: La información fue tomada desde aqui, yo no soy el autor. Sólo que se me hizo algo útil y decidí postearlo.