Just to update, i found a easier solution to this problem.
Intead of using system() to run command-line programs, you can add a default gateway route by ioctl with SIOCADDRT and SIOCDELRT, it's very simple.
Hope this helps someone.
Hi,
I want to end a host (shell script based) concurrent program in WARNING. Is it possible? Tried out a few things but it just either ends in NORMAL or ERROR. :confused:
Any ideas/inputs would be appreciated.
Thanks,
coolblue_3 (2 Replies)
hi, linux gurus...
i'm trying to write a script in ksh called ResetPass that allows a user to change mysql passwords. the script accepts user, password and host like this: ResetPass <user> <password> <host>. here's the code:
*****************************************************
mysql... (1 Reply)
I have my Mac OS X program executing a shell script (a script that copies files to a drive). I want to make it so that the shell script automatically kills itself if it finds that the host .app is not running OR kill itself if the drive that it is copying files to has been unmounted. Right now what... (2 Replies)
I need to know what is the maximum stack size i.e. -Xss my java program is running with.
Is there a way to find that out from inside my java program code and outside of it.
What i am looking for is to read whatever the current set max limit -Xss (stack sie) is for a particular JVM(not... (3 Replies)
Can anyone suggest a workaround
zone_5.org='/qaz/qwe/path/tns.osn'
output
/home/bingo/XXX_script.sh: line 180: zone_5.org=/qaz/qwe/path/tns.osn: no parent
The path does not exist on the local machine, the allocation used to work till the server was upgraded.
Red Hat Enterprise Linux... (2 Replies)
I have an Oracle Linux 7.1 vsphere host built. It's be preconfigured with our security configurations.
What I would like to do is unconfigure this host. Then set the host to do firstboot --reconfigure.
how do I do that using /etc/sysconfig/firstboot?
I've tried setting
... (10 Replies)
Hi All,
I have a requirement to make a oracle concurrent program end with
warning based on a given condition. If the condition is true, the
concurrent program should end with completed warning status.
The host program I am using is a shell script that checks if a file exists.
... (2 Replies)
Hi all,
i have a rhel 6.2 with a default gateway.
This server is an Intranet office with no internet access.
DNS are already configured and it's possible to resolve my target.
My goal is to link my application (apache forward) only to http://mytarget.yyy through a new gateway (That does... (0 Replies)
Dear friends
I use RedHat 6.5, which sets the gateway in the configuration file / etc / sysconfig / network as GATEWAY = 192.168.1.26, and the gateway in the configuration file / etc / sysconfig / network-scripts / ifcfg-eth11 as GATEWAY = 192.168.1.256. The two gateways are different.... (6 Replies)
Discussion started by: tanpeng
6 Replies
LEARN ABOUT MOJAVE
traceroute6
TRACEROUTE6(8) BSD System Manager's Manual TRACEROUTE6(8)NAME
traceroute6 -- print the route IPv6 packets will take to a network node
SYNOPSIS
traceroute6 [-dIlnNrvU] [-f firsthop] [-g gateway] [-m hoplimit] [-p port] [-q probes] [-s src] [-w waittime] target [datalen]
DESCRIPTION
The traceroute6 utility uses the IPv6 protocol hop limit field to elicit an ICMPv6 TIME_EXCEEDED response from each gateway along the path to
some host.
The only mandatory parameter is the destination host name or IPv6 address. The default probe datagram carries 12 bytes of payload, in addi-
tion to the IPv6 header. The size of the payload can be specified by giving a length (in bytes) after the destination host name.
Other options are:
-d Debug mode.
-f firsthop
Specify how many hops to skip in trace.
-g gateway
Specify intermediate gateway (traceroute6 uses routing header).
-I Use ICMP6 ECHO instead of UDP datagrams.
-l Print both host hostnames and numeric addresses. Normally traceroute6 prints only hostnames if -n is not specified, and only numeric
addresses if -n is specified.
-m hoplimit
Specify maximum hoplimit, up to 255. The default is 30 hops.
-n Do not resolve numeric address to hostname.
-N Use a packet with no upper layer header for the probes, instead of UDP datagrams.
-p port
Set UDP port number to port.
-q probes
Set the number of probe per hop count to probes.
-r Bypass the normal routing tables and send directly to a host on an attached network. If the host is not on a directly-connected net-
work, an error is returned. This option corresponds to the SO_DONTROUTE socket option; it can be used to ping a local host through
an interface that has no route through it (e.g., after the interface was dropped by a routing daemon).
-s src Src specifies the source IPv6 address to be used.
-U Use UDP datagrams for the probes. This is the default.
-v Be verbose.
-w waittime
Specify the delay time between probes.
This program prints the route to the given destination and the round-trip time to each gateway, in the same manner as traceroute.
Here is a list of possible annotations after the round-trip time for each gateway:
!N Destination Unreachable - No Route to Host.
!P Destination Unreachable - Administratively Prohibited.
!S Destination Unreachable - Not a Neighbour.
!A Destination Unreachable - Address Unreachable.
! This is printed if the hop limit is <= 1 on a port unreachable message. This means that the packet got to the destination, but
that the reply had a hop limit that was just large enough to allow it to get back to the source of the traceroute6. This was
more interesting in the IPv4 case, where some IP stack bugs could be identified by this behaviour.
RETURN VALUES
The traceroute6 utility will exit with 0 on success, and non-zero on errors.
SEE ALSO ping(8), ping6(8), traceroute(8)HISTORY
The traceroute6 utility first appeared in WIDE hydrangea IPv6 protocol stack kit.
BSD May 17, 1998 BSD