01-11-2011
If traceroute isn't working, ping likely won't be either - blocking ICMP at the edge is common enough. Trying a ping utility that uses UDP (hping) is worth trying too. If you're already dealing with security at the edge that's limiting the aforementioned protocols, it isn't likely that ssh is going to be allowed directly either. Telnet is an option if the host serves up protocols you are aware of - just telnet to the actual socket 'telnet <ip> <port>'. If all else fails, try an nmap (disable the ping) and see what ports are open.
Cheers,
Keith
This User Gave Thanks to kduffin For This Post:
10 More Discussions You Might Find Interesting
1. Solaris
Hi,
I have my application and database servers running on solaris. I need to check Db connectivity for a datasource in my Db server.
Please guide me how to do it in solaris env.
Aru (2 Replies)
Discussion started by: aarora_98
2 Replies
2. Shell Programming and Scripting
I want to write a script to check if a unix box say abc.tdc.cin.net can be connected or not on certain port say 22. right know i have to telnet them manually from DOS prompt and if it is successful then isay it is connected.
Also to check Database connectivity I am using tnsping From DOS prompt.... (3 Replies)
Discussion started by: kukretiabhi13
3 Replies
3. UNIX for Advanced & Expert Users
I am working on an unix server which has a mount point of windows server in it. I just need to check about the connectivity of this mount point with the windows server. Please let me know what should be done for that. (1 Reply)
Discussion started by: venkidhadha
1 Replies
4. Shell Programming and Scripting
This past weekend I had some issues with my ISP.
So for future purpose I'm going to have some logging on my internet so I'm able to attach log files to my complaint email if this issue reoccurs.
Decided to do a simple ping script that runs every 5 or 10 min with crontab
if ping fail write date... (5 Replies)
Discussion started by: chipmunken
5 Replies
5. IP Networking
Hi All,
I need an automation script to check the connectivity between 2 UNIX servers.
Could anybody please help in this regards?
regards,
janardhan (1 Reply)
Discussion started by: rjanardhan83
1 Replies
6. Shell Programming and Scripting
Hi ,
I am able to connect to sybase using the below script ,but i want to check the status of the connectivity like if there is any network failure during downloading the file ,it will come out with exit 1 status .Any help on this ?
# isql database_name db_user_name <<EOF
select date_val from... (0 Replies)
Discussion started by: mohan705
0 Replies
7. Solaris
Hi,
I need to check the sysbase database connectivity through the Unix Shell Script. Can you help me on the how to write the script to test the sysbase database connection.
Thanks in Advance
Nandha (0 Replies)
Discussion started by: nandha2387
0 Replies
8. Shell Programming and Scripting
check the connectivity of the DBs through script, script should exit if no connection and display the output as below.
connectivity for DB1 is OK
connectivity for DB2 is OK
connectivity for DB3 is FAILED
for DB in 1 2 3
do
(sqlplus -s... (5 Replies)
Discussion started by: only4satish
5 Replies
9. IP Networking
ello,
i am new to the networking side.
I have a requirement to check the tcp network connectivity between server it's running on and the list of host's and ports combination.
please help me where i am going wrong.
my code:
#!/bin/bash
#read the file line by line
cd "$1"
cat... (17 Replies)
Discussion started by: sknovice
17 Replies
10. Shell Programming and Scripting
Hi everyone!
Some time ago, I had to check connectivity with a big list of hosts, using different formats (protocol://server:port/path/, server:port, ....).
I developed a script that checks the connectivity using different commands (ping, telnet, nc, curl).
It worked for me so I'm sharing it... (9 Replies)
Discussion started by: Fr3dY
9 Replies
LEARN ABOUT HPUX
cmrunnode
cmrunnode(1m) cmrunnode(1m)
NAME
cmrunnode - run a node in a high availability cluster
SYNOPSIS
cmrunnode [-v] [node_name...] [-t | -w none]
DESCRIPTION
cmrunnode causes a node to start its cluster daemon to join the existing cluster. This command verifies the network configuration before
causing the node to start its cluster daemon.
To start a cluster on one of its nodes, a user must either be superuser(UID=0), or have an access policy of FULL_ADMIN allowed in the clus-
ter configuration file. See access policy in cmquerycl(1m).
Starting a node will not cause any active packages to be moved to the new node. However, if a package is DOWN, has its switching enabled,
and is able to run on the new node, that package will automatically run there.
If node_name is not specified, the cluster daemon will be started on the local node and will join the existing cluster.
Options
cmrunnode supports the following options:
-v Verbose output will be displayed.
-t Test only. Provide an assessment of the package placement without affecting the current state of the nodes or packages. The -w
option is not required with the -t option as -t does not validate network connectivity, but assumes that all the nodes can meet
any external dependencies such as EMS resources, package subnets, and storage.
node_name...
Start the cluster daemon on the specified node(s).
-w none
By default network probing is performed to check that the network connectivity is the same as when the cluster was configured.
Any anomalies are reported before the cluster daemons are started. The -w none option disables this probing. The option should
only be used if this network configuration is known to be correct from a recent check.
RETURN VALUE
cmrunnode returns the following value:
0 Successful completion.
1 Command failed.
EXAMPLES
Run the cluster daemon on the current node:
cmrunnode
Run the cluster daemons on node1 and node2:
cmrunnode node1 node2
AUTHOR
cmrunnode was developed by HP.
SEE ALSO
cmquerycl(1m), cmhaltcl(1m), cmhaltnode(1m), cmruncl(1m), cmviewcl(1m), cmeval(1m).
Requires Optional Serviceguard Software cmrunnode(1m)