bash script to test network connection - please help
I want to test if my host can connect to any of the following 10 hosts (192.168.1.0 to 192.168.1.9)
I didnt know which command i should use, so i chose ping. (i wonder if i should use tracepath or sth else)
my code is the following:
The problem is on this line "ping -c 1 -W 1 $ipAddr"
It would take 10 seconds to check the network connection in the worse case. (if all hosts are not reachable from my host), which is so long.
So i am wondering, if there another approach to accomplish the same thing? Is that possible to use tracepath instead of ping?
Hi friends,
I'm newbie to shell script. I wanted to create a shell script which able to write a result for all the telnet connection status. For example, from this machine I want to test the telnet connection (total 100+ servers) with this machine.
Any idea how to write this shell script?... (16 Replies)
Hello
I need assistance with a bash script that needs to tell me whether in the last "x" days (which is a variable) anyone connected to the xxxx IP (which is another variable).
Thank you! (1 Reply)
i have a unix script that gives me the sysdate from the database EDNAMID.WORLD.What i want my script to do the following
1) Establish a database connection
2) if database connection is successfull then echo the message "Connected"
3) put the o/p of the Sql query in a spool file
4) then... (3 Replies)
I am writing a script to do some conditional logic based on the results of a connection test. I need to capture the output of netcat, the 3 expected conditions are as follows. I need to capture the output of this command. I could write this to a file, but I would like to do it clearer if possible.... (1 Reply)
How do i tell my bash shell script to test the output of the command i'm using?? I want this script to look for lines not equal to 1 then let me know..
$ cat blah ; echo ---- ; cat blah.sh
1 fe
1 fi
1 fo
0 fum
1 blahda
1 blah
0 blahh
1 bla
1 bl
1 blahhh
----
#!/bin/bash
while... (1 Reply)
Hello folks;
I have about 20 servers in my environment here as well as some applications such as MySql, Oracle, etc..
I need help writing a shell script that can go out and test the Internet connection by pinging servers as well as testing the Oracle & MySql connections.
Is there a way to do... (6 Replies)
Hello,
We have to configure servers with a range of IPs which is in itself a subject for another script assistance request -but- we have run into quite a few IP ranges with routing problems lately.
I've been trying to figure out the best way to test a range of IPs, I mean, manually it's not... (4 Replies)
Basically it's for a work assignment.
Have to make a menu with the following choices
***************menu*********************
1) Show Current Directory
2) Dispaly Current Time and Date
3) Copy
4) Change Password
5) write directory to file
6) Edit File Directory
7) Make backup from... (1 Reply)
Hello,
I need to test telnet connections using port number for few hosts.
Could you please help me?
Thanks !! (1 Reply)
Discussion started by: skhichi
1 Replies
LEARN ABOUT DEBIAN
vde_tunctl
VDE_TUNCTL(8) System Manager's Manual VDE_TUNCTL(8)NAME
vde_tunctl -- create and manage persistent TUN/TAP interfaces
SYNOPSIS
vde_tunctl [-f tun-clone-device] [-u owner] [-t device-name]
vde_tunctl [-f tun-clone-device] -d device-name
DESCRIPTION
vde_tunctl allows the host sysadmin to preconfigure a TUN/TAP device for use by a particular user. That user may open and use the device,
but may not change any aspects of the host side of the interface.
vde_tunctl is a simple copy of tunctl done for practical purposes.
USAGE
To create an interface for use by a particular user, invoke tunctl without the -d option:
# vde_tunctl -u someuser
Set 'tap0' persistent and owned by uid 500
Then, configure the interface as normal:
# ifconfig tap0 192.168.0.254 up
# route add -host 192.168.0.253 dev tap0
# bash -c 'echo 1 > /proc/sys/net/ipv4/conf/tap0/proxy_arp'
# arp -Ds 192.168.0.253 eth0 pub
To delete the interface, use the -d option:
# vde_tunctl -d tap0
Set 'tap0' nonpersistent
SEE ALSO vde_switch(1)vde_plug2tap(1)AUTHOR
tunctl was written by Jeff Dike jdike@karaya.com
This manual page is based on tunctl manual page written by Matt Zimmerman mdz@debian.org for the Debian GNU/Linux system.
VDE_TUNCTL(8)