Hello,
I have just installed ubuntu 16.04 into my pc.
Locally everything works fine, it takes data from internet, I am also able to connect to apache in the same local network. When I try to reach from mobile network, I can't establish ssh, apache site is not displaying in my browser etc.
Ifconfig:
interfaces:
I also set static ip as DMZ host in router. To be sure I rebooted both pc and router but nothing changes.
Hi,
How do I get my working directory always shown in the unix editor? i.e if I am now at /Home/abc/xyz/, I want to see this absolute path displayed ( and now only display when I type pwd).
thanks for the kind help.
Regrads (3 Replies)
I am trying to obtain the file name (not including sub file name), however, I still cannot have the string output. :(
2 existed files at /tmp, AAA.new and BBB.last
Originally, the output result is needed to be shown as follows,
ex:
SYSTEM NEW LAST
===================
01 ... (8 Replies)
Hi,
On solaris 10, t5120,
I don't understand what are the last 2 file systems
so last 2 file systems what are they, why are they getting shown and also confused why the swap is shown so many times and different size when I set it to 16 G at the time of installing solaris 10. ( rest... (3 Replies)
Hello,
This is a 2 node sun cluster 3.2 on solaris 10(x86)
I am using an unique ~512M disk (c0d1) on each node and slice 6 on this disk for globaldevices. While everything looks like fine, the 'Fail' is bothering me.
@ tommy_sun1
@tommy_sun
-bash-3.00# cldevice refresh... (10 Replies)
Hi All,
I am having knowledge on some basics of ssh and wanted to know what are the public keys and how can we create and implement it in connecting server.
Please provide the information for the above, it would be helpful for me.
Thanks,
Ravindra (1 Reply)
Hi
I am using the dd command on solaris 10 and the output doesn't include the MB/s statistic that you get in Linux,
is this not available or am I missing a switch of some sort
#dd if=/dev/urandom of=/perf_test/file.txt bs=1048576 count=500
0+500 records in
0+500 records out (2 Replies)
I'm currently running a CUPS server and it shows the printers on other computers just fine, but after a while they disappear. I found out, that restarting /etc/init.d/cups-browsed fixes the problem (for about 15min).
When the printers disappear, the cups-browsed service is still running, so I... (0 Replies)
Discussion started by: Gajeela
0 Replies
LEARN ABOUT FREEBSD
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