I have 2 servers. I want to be able to ping both ways.
Server A cannot ping to server B, but server B can ping to Server A. Server A ip address : 10.61.1.119 Server B ip address : 10.67.26.89
This is the routing table for Server A :
This is the routing table for Server B:
Server A is a HP-UX server. Server B is a Linux server.
I added the route in this Server A to the destination server (Server B) with this command :
This added the route, however, I am still not able to ping to 10.67.26.89.
I added the route in this Server A to the destination server (Server B) with this command :
This added the route, however, I am still not able to ping to 10.67.26.89.
The route command says the following: if you got a packet for 10.67.26.89, then send it to 10.61.1.1 and the host owning this interface will know how to deal with it. Do you even get to 10.61.1.1? If not, this is the problem! (Tip: if you use ping to test specific connections you assume that the ICMP protocol - which is used by ping - is allowed. This is usually not the case in firewalled environments. They usually drop ICMP packets silently.
Use this:
for tests then. You won't get a telnet connection at all, but you will find out if you get even there (connection attempts fails, usually with some banner from the application waiting behind the port) or not (connection times out with "host unreachable" or so).
In general systems should not know how to route (quite like routers should not do other work besides routing). This is why you should not explain to the routing table of your system about how to use the foreign address 10.61.1.1 to get to some remote server because you need to tell it how to get to 10.61.1.1 itself first. Let the routers decide this and tell the system which interface to use to send the packet:
and the router adjacent to this interface should be able to forward it on its own. Otherwise your network design is flawed.
help with bash script!
im am working on this script to make sure my server will stay online, so i made this script..
HOSTS="192.168.138.155"
COUNT=4
pingtest(){
for myhost in "$@"
do
ping -c "$COUNT" "$myhost" &&return 1
done
return 0
}
if pingtest $HOSTS
#100% failed... (4 Replies)
Hi
I am using perl to ping a list of nodes - with script below :
$p = Net::Ping->new("icmp");
if ($p->ping($host,1)){
print "$host is alive.\n";
}
else {
print "$host is unreacheable.\n";
}
$p->close();... (4 Replies)
SHAME, that's all that I'm felling right now, however I'm not finding PING or either tracert in my box (Solaris 10).
1) Yes my PATH does have /usr/bin /usr/sbin
# echo $PATH
/opt/csw:/usr/bin:/sbin:/usr/sbin:/usr/ccs/bin:/usr/sfw/bin:/opt/csw/bin:/opt/csw/gcc2/bin:/opt/csw/bin
2) If I... (1 Reply)
Hi,
I develop simple animation ping script on Solaris Platform. It is like Cisco ping.
Examples and source code are below.
bash-3.00$ gokcell 152.155.180.8 30
Sending 30 Ping Packets to 152.155.180.8
!!!!!!!!!!!!!.!!!!!!!!!!!!!!!.
% 93.33 success... % 6.66 packet loss...... (1 Reply)
I have an old MP-Ras Unix system. I have setup netowkring but am unable to ping any local network pcs or the default gateway. If i use the arp -a command I receive the correct mac address for all connected pcs but I cannot ping anything except the local address. Any help would be appreciative.
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Hello,
I administer a bunch of Apple XServes running OS X Server and I have one in particular that is annoying me since I brought it online.
The host is a dual quad core Intel CPU. en0 is attached to a routable network and en1 is attached to a non-routable network (private switch that all the... (0 Replies)
Hi All,
Need your help one more time.
I am trying to ping a linux machine which is not responding to ping.
However traceroute can reach the machine and I can log in to it by ssh. I have checked /proc/sys/net/ipv4/icmp_echo_ignore_all it is already set as "0".
It is not happening in the... (1 Reply)
Hi ,
I have one system installed on Linux Red Hat 3.0. I have ip of system 3.156.168.*** and i want to ping some port that is on this IP which command i can do this?
sam70 (1 Reply)
Hi there hope list can help
I'm looking for a command that does the following
lets say i ping a server 00.00.000.00
and this server is up and running how do i get the ping command to return a UP or a Down
meaning
if the command is true do this
if the command is False do this
... (2 Replies)
Hi,
When I pinged a machin, I got to be seen a different kind of
reply from that machine.
This is as below : "Reply from 136.128.11.116: Source quench received." Which I felt like an un-usual message.
So what does this mean.
Regards & Thanks in advance.
Vishwa. (4 Replies)