General :: Writing A Command (for Loop) That Would Ping A Class C Subnet?
Nov 4, 2010how to write a command (for loop) that would ping a Class C subnet to make it so that it only replies once and does not show the statistics?
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General :: Ping Two Ethernet Card On The Same Computer And On The Same Subnet
Jul 6, 2011I have two NIC Ethernet card (eth1 and eth2) on the same computer (linux) connected by a cross cable.
The two interfaces are on the same subnet :
eth1 : 192.168.200.1 255.255.255.0
eth2 : 192.168.200.2 255.255.255.0
Then i add a route for each interface :
route add -net 192.168.200.0 netmask 255.255.255.0 eth1
route add -net 192.168.200.0 netmask 255.255.255.0 eth2
Finally,i'm trying to ping :
ping 192.168.200.1 -I eth2 or ping 192.168.200.2 -I eth1
Ping command reaches error : Destination Host Unreachable
Networking :: Cannot Ping With Command - Ping IP - Address But Can Ping With - Ping IP -I Eth0
Jul 15, 2011I am using an virtual machine. where I need to ping from one machine to another. earlier I was able to ping. But after going to google.com once, I cannot ping back to this machine.
But if I gave ping -I eth1 <IP> then I can ping.
I cannot install any package, so tell me solution which includes not installing any package.
Networking :: Cannot Ping To Machine From Another Subnet?
Apr 23, 2010I installed apache2 on my Ubuntu machine and I am trying to access the server from another subnet. The server is connected using ethernet and has a static ip address. I can ping from the server to any machine in the other subnet but non of the machine on that subnet can ping the server. iptables does not seem to be running
Code:
# service iptables status
iptables: unrecognized service
and its rules are
Code:
# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
[code]....
What is preventing my machine from being accessed from the other subnet?
OpenSUSE Network :: Ping Between Two Guest Os On Two Different Subnet Masks
Mar 15, 2010Step 1 : In Hyper-v Machine i have created two Virtual Ports.
Step 2 : Now for these two diff ports two ip address with different subnet mask(e.g 192.168.9.19 and 192.16.9.20)have been assigned(and have checked using ifconfig).
Step 3 : In Host machine i have added one subnetmask for one machine next one for another machine,however i m not able to ping both the ports from either of the machines having static ip 192.168.9.13 or having ip 192.16.9.107.
Step 4 : If i add same subnet mask for both machine it is pinging properly between 2 machines.
Networking :: Centos Cannot Ping Hosts On The Same Subnet After Change To Static Ip
Jul 26, 2011I am using centOS 5.0. After I change from DHCP to static IP address, I cannot ping hosts on the same subnet. The error message says destination host unreachable. Before I made the changes I was able to ping and now even I change it back to DHCP I still cannot ping with the same destination host unreachable message. The centOS is running on VMware on a Windows host.
ifconfig shows
eth0 Link encap:Ethernet HWaddr 00:0C29:A1:9A:10
inet addr: 192.168.0.202 Bcast:192.168.0.255 Mask: 255.255.255.0
inet6 addr ......
After pinging 192.168.0.106 (106 is on and other host can ping it), arp -a shows ? (192.168.0.106) at <incomplete> on eth0 I tried different ways by disabling the firewall and and disabling SE protection. No Luck.
General :: Initializing Drive Array Command For Class Lab On Fedora 12?
Feb 10, 2010what command initializes a drive array on Fedora12? I'm trying to initialize the drive command for linear RAID and the command given in the textbook is for Fedora Core 2 (which I had problems with in Virtualbox).
View 4 Replies View RelatedGeneral :: Machine Boots W/ Grub > Command / Window Installed ASAP For A Class?
Jan 26, 2010I had linux installed on dell latitude d600, I did fdisk and deleted the OS so I can install Xp. When I try to boot from the Window xp cd , I get LINUX grub command line . " grub>" and can't do anything.I need window installed ASAP for a class that I am taking .
View 2 Replies View RelatedGeneral :: Getting The While Loop To Execute In The Ssh Command?
Jun 15, 2011I am having trouble getting the while loop to execute in the ssh command:ssh $USERID@serverX "while read line do echo $line done<$list_dir/cost_feed.lst.old"Error:bash: -c: line 1: syntax error: unexpected end of fileI have managed to use simpler commands with ssh like:ssh $USERID@serverX "pwd; cp x y"I expect that I need to add some combination of escape characters or semicolons
View 3 Replies View RelatedGeneral :: Write A Loop Command For Pdf2djvu?
Jun 25, 2011How do I write a loop command to periodically check a given folder and then create a djvu file from any pdf it finds.pdf2djvu works great but I'm looking to set up a "hot folder" for general office staff to use.
View 3 Replies View RelatedGeneral :: Feeding A While Loop With A Command Output?
Apr 25, 2011I am posting this just for the sake of curiosity. I am trying to feed a while loop structure with a command output, but using the bash built-in I get the error "ambiguous redirect":
Code:
while read line
do
[code]....
General :: Writing Command Executed Into Logfile?
Jun 7, 2011Currently we are using Unix machine & the activity are logged in the file using following code used in profile
.profile code
# /ln/aud_root/dds_ibm/.profile
trap 'print "not allowed"' INT
trap 'print "not allowed"' QUIT
trap 'print "not allowed"' TSTP
[Code].....
Ubuntu Servers :: Openvpn Site-to-Site : Impossibile To Ping Client On Subnet?
Jun 25, 2010I have to ubuntu machine (9.10 and 10.4) with a openvpn tunnel between them.This is the situation:
Code:
NetworkA 192.168.0.0/24
|
UbuntuA br0:192.168.0.3 (openvpn bridge between eth0 and tap0)[code].....
UbuntuA has one only interface etho and there are two openvpn instance: one bridge istance with br0 and another instance with tun0.
UbuntuA is not the gateway for networkA. UbuntuB is the gateway for NetworkB.I need to comunicate between pc on networkB e those on networkA.This is the "ping situation" (no pc tested has an active firewall):
ubuntuA vs ubuntuB: OK
ubuntuB vs ubuntuA: OK
pc on NetworkA vs ubuntuA and ubuntuB: OK[code].....
General :: Bring Back The Command Prompt When Running An Infinite-loop Containing Program?
Jan 13, 2010When running a program that has infinite loops in the terminal , how to bring back the command prompt ? ( I'm using Fedora core 5 )
View 7 Replies View RelatedProgramming :: Effect Of Using Eval To Execute A Command As Opposed To Writing It On The Command-line?
Jun 18, 2010Code: cmd='date | wc'
$cmd If this script is executed, an error is generated. The reason written was that "The execution fails because the pipe is not expanded and is passed to date as an argument".What is meant by expansion of pipe. When we execute date | wc on the command line, it goes fine.then | is not treated as an argument. Why?
Networking :: VLAN With 2 Router And 2 Subnet - Is Device In Different Subnet Works
Jul 22, 2011I have TWO L3 + router switch (say switch1 and switch2). I created VLAN100 with VLAN ID 100 in both the switches. I created router 192.168.1.1/24 in Switch1. I created router 192.168.2.1/24 in Switch2. Switch1 is connected with 1.x/24 PCs. PCs are configured with 1.1 gateway. Switch2 is connected with 2.x/24 PCs. PCs are configured with 2.1 gateway. Both Switch1 and switch2 are connected by a trunk to carry VLAN100 data.
1)I have few PCs of 1.x connected to say Switch1 Is it possible for PC with IP 192.168.1.100(x) to ping PC with IP 192.168.2.100(y)?What are the configuration required in both switches to make them communicate ? All the device in both the subnets should ping/communicate with each other.
2)Move PC (192.168.1.100) to switch2. Move PC (192.168.2.100)to switch1.What will happen when PC(1.100) ping (2.100) and vice versa?What will happen when PC(say 1.80 in switch1) pings PC (say 1.100 in switch2) and vice versa? What will happen when PC(say 1.80 in switch1) pings PC (say 2.100 in switch1) and vice versa?
General :: For Loop Or While Loop To Read The Fields Of A File?
Sep 1, 2010I have a mytext file with month and year as two separate fields. likemytext fil
08 2010
09 2010
10 2010
........
........
........
I want to read the values of each field i.e., month and year into an awk script.
General :: Ping Command Continues After Closing Application
Jun 4, 2010I run the ping command using system() in C. It start pinging the desired destination but when I close my application it continues to ping. Is there any solution that as soon as I close my application it also stops pinging. Any change required in my C code?
View 2 Replies View RelatedNetworking :: Iptable Command To Allow Traffic To Internet But Not Subnet?
Jun 3, 2010My internet gateway is 192.168.1.1 with a 255.255.255.0 subnet mask. I have a router connected to it running ddwrt with an ip 192.168.2.1/24 creating a second subnet behind it. I have a tenant moving in that will be wirelessly connecting to the ddwrt router, so to the 192.168.2.0/24 subnet. What I am looking for is a rule that will pass internet traffic to and from this client, but restrict him access from the 192.168.1.0/24 subnet otherwise. The ddwrt router is connected to the 192.168.1.1 gateway through its wan port, btw. For example, the client would get an ip address of 192.168.2.100 wirelessly from the ddwrt router. I want him to be able to surf the internet through the 192.168.1.1 gateway, but not to have any other access to the 192.168.1.0/24 subnet (ideally not have access to ANYTHING besides the internet).
View 4 Replies View RelatedGeneral :: Ping Similar Command For Checking Server Services?
Jan 25, 2011I am looking for a command line utility like ping that can use for checking appropriate services on a server . I do not want do any port scan . I just want to use it for checking apache , mail,ftp and other services on a server if they are running or down.
View 3 Replies View RelatedNetworking :: Can't Browse Computer Of One Subnet From Another Subnet
Jul 4, 2011I installed Redhat Enterprise linux server5. it has two LAN card and two subnet connected to these two LAN card. i can browse network from these two network easily. But i created VLAN on one network card.Now i cant browse network from these VLAN subnet.
View 3 Replies View RelatedOpenSUSE Install :: Cannot Compile Vdrift-2009-06-15 - Warning: The Options Class Is Deprecated; Use The Variables Class Instead
Mar 12, 2010I have a problem with compiling vdrift-2009-06-15 using scons. As the source that i obtained only supports scons i cannot use make. the error that i get when i try to compile it in GNOME Terminal is: scons: Reading SConscript files ... scons: warning: The Options class is deprecated; use the Variables class instead.
File "/home/mohit/Download/vdrift-2009-06-15/SConstruct", line 9, in <module>
scons: warning: The BoolOption() function is deprecated; use the BoolVariable() function instead.
File "/home/mohit/Download/vdrift-2009-06-15/SConstruct", line 13, in <module>
Checking for C++ header file asio.hpp... (cached) yes
Checking for C++ header file boost/bind.hpp... (cached) yes
Checking for C++ header file GL/gl.h... (cached) yes
Checking for C++ header file GL/glu.h... (cached) yes
Checking for C++ header file SDL/SDL.h... (cached) yes
[Code]........
Debian Multimedia :: Use The "ping -a" Command For Getting An Audible Ping
Jul 8, 2011I try to use the "ping -a" command for getting an audible ping. But there is just silence The command "beep" works fine, so everything should be ok with the speaker (in the konsole).
View 3 Replies View RelatedGeneral :: Writing With "W" In Top Is Not An Option As Top Command
Sep 2, 2010I have the "top" command and I want to override its default behavior for every user, even for future users.
Writing with "W" in top is not an option as my top command somehow overrides the custom behavior per user and always turns to default behavior.
So, what I am asking for is, are there command line switches that override default behavior of top, for example:
Code:
top -<BLABLA>
to show me the load average per core which would be equivalent to starting top first and then pushing the key "1" on the keyboard.
Remember, writing to toprc is not an option for me as top for some reason ignores its config and just goes for default behavior.
Edit: it seems to me this is a bug in the procps package. That is why I updated it to the latest version for my distro CentOS 5.5 and procps to the following [URL] HOWEVER, it doesn't work even now.
Ubuntu :: What Is Loop For In Command Line?
Aug 23, 2010what does desktop manager do? What does $ do? what is loop for in command line? What is the best way to switch user? Using command line?
View 7 Replies View RelatedGeneral :: Ping - Gives Unknown Host Error - Ping To LAN Address Works Fine
May 13, 2011Even ping google's ip address doesn't work. unknown host error using backtrack4 able to browse net with these settings.
My network settings:
What's the problem with these settings...
Hardware :: 'dd' Command Writing To Usb Pen Drive At Only 2.5mb/s?
May 12, 2011I was just wondering is 2.5mb a second normal to write to a usb2 pendrive with the 'dd' command?
I know dd maybe having an influence on writing time, but it still seems really low for usb2 transfer?
Is there a command to measure the time a file takes to transfer from HD to usb pen? (not using dd).
Software :: Writing 0xFF With The Dd Command?
Nov 19, 2010I'm trying to write a 100MB file for example all with 0xFF so in the hex editor it should look like "FF FF FF FF FF FF" etc. I know you can write a 0x00 with this line:
Code:
dd if=/dev/zero of=myfile bs=1M count=100
But how to do 0xFF or another character?
I want to use the 'dd' command because with the 'bs=1M' argument it is 100 times faster than any other shell command I've seen.
Ubuntu :: Port A Command Output To A While Loop?
Oct 3, 2010How can I port standard out from ls or any other command into a while loop?
Code:
while read line
do
[code]....
Programming :: Java AT Command Writing Errors?
Nov 11, 2010I am running a java application on centos. For now I have a gsm modem connected via the the usb cable. Below is the message I get when I type the command dmesg | grep tty
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
00:0c: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
usb 2-2: pl2303 converter now attached to ttyUSB0
[code]....
