Dear All ,
I want to Access my office computer form the home.
The enviourment is like the following :
1- From my home I connect for the office via VPN connection to Unix server lets say it's IP is 11.11.11.11 and till now every thing is OK and I can access the machine normally .
2- In my... (3 Replies)
Hi.
My workstation is Windows. I use putty to connect to unix servers. The problem is that i'm doing it many times a day and each time i need to supply password. I have no control on ssh configuration on servers, because of account restrictions. So i can't use key authentication, how is suggested... (4 Replies)
Hi,
i am trying to connect my Putty session on a windows box to a linux SSH, i have generated private and public key pairs using puttygen, i have set the public one to be in an OPENSSH format... and have put this in my authorized_keys file in linux, when i connect i get the following errors:
... (1 Reply)
Hello All,
I'm using my Ubuntu 10.04 client connected via SSH to a SuSE Linux server (SuSE Linux Enterprise Server 11 (x86_64) version 11 patchlevel=1).
I'm trying to run an install of WebSphere Portal but can't seem to be able to run the GUI installer.
Running xclock as root returns this... (7 Replies)
Dear all,
I am using solaris 10 OS.
I configured NIS server and i also configured NIS client server but when i use the command ypinit -s sunserv1 in NIS client it is showing me the below error.
Enumerates maps from sunserv1. please check that it is running. (2 Replies)
Please I am having problem to login using Active Directory Services 2008 R2 accounts on a cubox ubuntu (2.6.32.9-dove-5.4.2 #46). "getent passwd" only shows local users, however I can querry ADS users using ldapsearch command.
I have 2 systems, one that does not use gdm can login with all users... (0 Replies)
Please I am having problem to login using Windows 2008 R2 Active Directory Services accounts on a cubox ubuntu (2.6.32.9-dove-5.4.2 #46). "getent passwd" only shows local users, however I can querry ADS users using ldapsearch command.
I have 2 systems, one that does not use gdm can login with all... (1 Reply)
Hi;
I had Windows Server 2003 and performed a fresh Ubuntu Server 15 installation.
After installation, Ubuntu server not booting
I guess there is boot problem conflicting with my old Windows Server.
This is my pastebin:
http://paste.ubuntu.com/13851828/
Any help to start my new... (1 Reply)
Discussion started by: gc_sw
1 Replies
LEARN ABOUT FREEBSD
if_gre
GRE(4) BSD Kernel Interfaces Manual GRE(4)NAME
gre -- encapsulating network device
SYNOPSIS
To compile the driver into the kernel, place the following line in the kernel configuration file:
device gre
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_gre_load="YES"
DESCRIPTION
The gre network interface pseudo device encapsulates datagrams into IP. These encapsulated datagrams are routed to a destination host, where
they are decapsulated and further routed to their final destination. The ``tunnel'' appears to the inner datagrams as one hop.
gre interfaces are dynamically created and destroyed with the ifconfig(8) create and destroy subcommands.
This driver corresponds to RFC 2784. Encapsulated datagrams are prepended an outer datagram and a GRE header. The GRE header specifies the
type of the encapsulated datagram and thus allows for tunneling other protocols than IP. GRE mode is also the default tunnel mode on Cisco
routers. gre also supports Cisco WCCP protocol, both version 1 and version 2.
The gre interfaces support a number of additional parameters to the ifconfig(8):
grekey Set the GRE key used for outgoing packets. A value of 0 disables the key option.
enable_csum Enables checksum calculation for outgoing packets.
enable_seq Enables use of sequence number field in the GRE header for outgoing packets.
EXAMPLES
192.168.1.* --- Router A -------tunnel-------- Router B --- 192.168.2.*
/
/
+------ the Internet ------+
Assuming router A has the (external) IP address A and the internal address 192.168.1.1, while router B has external address B and internal
address 192.168.2.1, the following commands will configure the tunnel:
On router A:
ifconfig greN create
ifconfig greN inet 192.168.1.1 192.168.2.1
ifconfig greN inet tunnel A B
route add -net 192.168.2 -netmask 255.255.255.0 192.168.2.1
On router B:
ifconfig greN create
ifconfig greN inet 192.168.2.1 192.168.1.1
ifconfig greN inet tunnel B A
route add -net 192.168.1 -netmask 255.255.255.0 192.168.1.1
NOTES
The MTU of gre interfaces is set to 1476 by default, to match the value used by Cisco routers. This may not be an optimal value, depending
on the link between the two tunnel endpoints. It can be adjusted via ifconfig(8).
For correct operation, the gre device needs a route to the decapsulating host that does not run over the tunnel, as this would be a loop.
The kernel must be set to forward datagrams by setting the net.inet.ip.forwarding sysctl(8) variable to non-zero.
SEE ALSO gif(4), inet(4), ip(4), me(4), netintro(4), protocols(5), ifconfig(8), sysctl(8)
A description of GRE encapsulation can be found in RFC 2784 and RFC 2890.
AUTHORS
Andrey V. Elsukov <ae@FreeBSD.org>
Heiko W.Rupp <hwr@pilhuhn.de>
BUGS
The current implementation uses the key only for outgoing packets. Incoming packets with a different key or without a key will be treated as
if they would belong to this interface.
The sequence number field also used only for outgoing packets.
BSD November 7, 2014 BSD