9 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
I have a static IP 47.21.154.146 and two computers which I wish to talk to each other. The two IPs are 198.168.1.5 and 198.168.1.6.
How do I do it. For example ls from one computer to the other.
TIA (8 Replies)
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2. Shell Programming and Scripting
Could you help me writing a script showing which network connections are currently active?
Means output should be something like:
"eth0, wlan1, wlan3"
Problem:
The output is supposed to happen on a 16x2 LCD Display.
Currently I am doing a "Ifconfig" as output, but its too fast for the... (2 Replies)
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3. Solaris
Hallo,
Using a zpool mirror; is there a way to set something like a primary storage / preferred vdevs / read-first devices like it was in disksuite using "metaparam -r " or the "vxvol rdpol " to define a preferred plex in VxVM? Will ZFS always use round-robin?
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4. IP Networking
I want to know potential problems with the following scenario OR if it is an ok way to have my network setup:
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5. Solaris
Hi all,
After being dumped in a Solaris sysadmin role, i have been trying to tidy the unpatched mess I have inherited. Part of this task is to update the current AMP stack.
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6. AIX
Hi,
lets say we have two boot interfaces en0 en1
and two resource groups, with two service ips, sip1 and sip2, one persistent ip pers1
both persistend and service ips are applied as ip-alias
when I start the cluster, and bring the resource groups up, it looks like
en0: sip1 and sip2
... (4 Replies)
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7. IP Networking
Hello,
I have a centralized syslog server, and am wondering if there is a way to log all network connections to it (Primarily incoming, such as FTP, httpd, SSH, etc). Essentially what I would like is to get the information seen in netstat or lsof logged line by line, realtime. Is there a... (3 Replies)
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8. UNIX for Dummies Questions & Answers
When I was using windowsXP I encountered a file manager called UltraExplorer http://www.mustangpeak.net/ultraexplorer.html that appeared really impressive.
Now in the Linux/UNIX world I was pointed towards a similar idea called 4Pane
http://www.4pane.co.uk/
I'm surprised to do a search on... (3 Replies)
Discussion started by: catch22
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9. Linux
how can i see active network connections (1 Reply)
Discussion started by: youmna
1 Replies
IFSCHEME(8) Commands IFSCHEME(8)
NAME
ifscheme - scheme control for network interfaces
SYNOPSIS
ifscheme [-v] [[-s] newscheme]
mapping <interface> script ifscheme-mapping
DESCRIPTION
ifscheme allows you to change network configuraton schemes or query the current scheme. It integrates with the ifup(8) command and inter-
faces(5). For example, you might use this program to configure a "home" scheme and a "work" scheme for a network device on a laptop. When
you move between home and work, a simple command can reconfigure your networking.
If you run the program with no parameters, it will tell what the current network scheme is.
The ifscheme-mapping utility is used to tell the ifup and ifdown utilities about the current scheme.
OPTIONS
-v
--verbose
Run in verbose mode. This is passed in to the ifup and ifdown programs as well.
-l
--list list all schemes available/defined in /etc/network/interfaces.
newscheme
-s newscheme
--scheme newscheme
Change to a new network configuration scheme. When the scheme is changed, network interfaces that were using the old scheme will be
taken down and brought back up to use the new configuration scheme. -s or --scheme are mandatory if newscheme begins with a -.
CONFIGURATION
To make the program do anything useful when a scheme is selected, you must edit /etc/network/interfaces to add a mapping for the interface
(or interfaces) that can be controlled on a per-scheme basis. Suppose you want to control eth0 in this way. You might have an existing eth0
configuraton in there, such as:
auto eth0
iface eth0 inet static
address 192.168.1.5
netmask 255.255.255.0
gateway 192.168.1.1
To change this so you can chose between static routing and dhcp, replace it with the following (it helps to ifdown the interface first).
auto eth0
mapping eth0
script ifscheme-mapping
iface eth0-home inet static
address 192.168.1.5
netmask 255.255.255.0
gateway 192.168.1.1
iface eth0-work inet dhcp
Now if you run "ifscheme home" and ifup the interface, you'll get the eth0-home configuration stanza. If you run "ifscheme work", it will
be changed to the eth0-work stanza. You can add additional stanzas as desired, but the label must always be of the form <hardware inter-
face>-<scheme name>.
If you have a second interface (perhaps a wireless network card on eth1), you can duplicate the above for that interface, changing the eth0
and the configuration details as appropriate, but remember to add an iface stanza for every scheme name for the second interface.
FILES
/etc/network/interfaces
the interfaces definition file
/etc/network/run/scheme
the current scheme
/etc/network/run/ifstate
a record of the current state of the interfaces, managed by ifup and ifdown
BUGS
All schemed interfaces will have the same scheme.
Any schemed interface which does not have an entry for the current scheme and is not configured when the scheme is changed will not be suc-
cessfully configured when it is brought up.
SEE ALSO
interfaces(5) ifup(8) ifdown(8)
DISTRIBUTION
Redistribution is subject to the GNU public license.
AUTHORS
Joey Hess <joey@kitenet.net>, Peter Wilson <pwilson@cs.hmc.edu>
IFSCHEME(8)