I am trying get "df -k" output from multiple hosts along with their hostnames via ssh, my script is appending the "df -k" output from all the nodes to a single file but not getting the hostnames for those nodes, just wondering how to pass more than one command via ssh or may be someone could come... (6 Replies)
I do a ssh to remote host(A1) from local host(L1). I then ssh to another remote(A2) from A1.
When I do a who -m from A2, I see the "connected from" as "A1".
=> who -m
userid pts/2 2010-03-27 08:47 (A1)
I want to identify who is the local host who initiated the connection to... (3 Replies)
Hi guys.
i need some help, i need to create a script in tcsh that rsh into all my hosts that we have at our business, then cd to a directory (cd /apps/users) then grab a file from the users folder and ftp it back to my windows machine. can someone please help?
Kind regards.
Brian Behrens (2 Replies)
Hi im trying to write a script to logon to list of servers with same userID. I have no option/plan to implement ssh-keygen sharing between the systems, so i have written script creating 2 files,
file1 holds list of hosts
host1
host2
host3
file2 has following script
for i in `cat file1`... (1 Reply)
Hi friends,
i need to prepare a script ( in perl)
i have a file called "demo.exe" in my local unix host.
i have a list of remote hosts in a file "hosts.txt"
now i need to push "demo.exe" file to all the hosts in "hosts.txt" file.
for this i need to prepare a script(in perl, but shell... (5 Replies)
Hi guys - I am having a hard time trying to figure how to search for a certain string on config files hosted on multiple hosts.
This is an example:
Hostnames: myhost1.mycompany.com|myhost2.mycompany.com|myhost3.mycompany.com
String to search for: myipaddress.somehost.com
Directory... (9 Replies)
Hello,
I am trying to login to multiple servers and i have to run multiple loops to gather some details..Could you please help me out.
I am specifically facing issues while running for loops.
I have to run multiple for loops in else condition. but the below code is giving errors in for... (2 Replies)
Dear Folks,
I am trying to read a config file contains ip and port numbers.
i want to read each line of the config file and check ssh connection is happening or not.
Kindly guide.
Config file:
abc@1.2.342 22
abc@1.2.343 22
abc@1.2.344 22
abc@1.2.345 22... (9 Replies)
Hello all,
i'm trying to create a report by greping a pattern on multiple remote hosts and creta a simple report,
actually i did this, is ther any better way to do this.
#!/bin/bash
for host in `cat RemoteHosts`
do
ssh $host -C 'hostname 2>&1; grep ERROR /var/log/WebServer.log.2019-09-21... (0 Replies)
I'm trying to copy a file myfile.scr from my local Linux server to multiple folders on remote AiX server using single rsync command.
Below command helps me copy the file "myfile.scr" from my localhost to a remote host folder "/app/deployment/tmpfiles"
rsync --delay-updates -F --compress... (1 Reply)
Discussion started by: mohtashims
1 Replies
LEARN ABOUT OPENSOLARIS
ssh-keyscan
ssh-keyscan(1) User Commands ssh-keyscan(1)NAME
ssh-keyscan - gather public ssh host keys of a number of hosts
SYNOPSIS
ssh-keyscan [-v46] [-p port] [-T timeout] [-t type]
[-f file] [-] [host... | addrlist namelist] [...]
DESCRIPTION
ssh-keyscan is a utility for gathering the public ssh host keys of a number of hosts. It was designed to aid in building and verifying
ssh_known_hosts files. ssh-keyscan provides a minimal interface suitable for use by shell and perl scripts. The output of ssh-keyscan is
directed to standard output.
ssh-keyscan uses non-blocking socket I/O to contact as many hosts as possible in parallel, so it is very efficient. The keys from a domain
of 1,000 hosts can be collected in tens of seconds, even when some of those hosts are down or do not run ssh. For scanning, one does not
need login access to the machines that are being scanned, nor does the scanning process involve any encryption.
File Format
Input format:
1.2.3.4,1.2.4.4
name.my.domain,name,n.my.domain,n,1.2.3.4,1.2.4.4
Output format for rsa1 keys:
host-or-namelist bits exponent modulus
Output format for rsa and dsa keys, where keytype is either ssh-rsa or `ssh-dsa:
host-or-namelist keytype base64-encoded-key
OPTIONS
The following options are supported:
-f filename Read hosts or addrlist namelist pairs from this file, one per line. If you specity - instead of a filename,
ssh-keyscan reads hosts or addrlist namelist pairs from the standard input.
-p port Port to connect to on the remote host.
-T timeout Set the timeout for connection attempts. If timeout seconds have elapsed since a connection was initiated to a
host or since the last time anything was read from that host, the connection is closed and the host in question
is considered unavailable. The default is for timeout is 5 seconds.
-t type Specify the type of the key to fetch from the scanned hosts. The possible values for type are rsa1 for protocol
version 1 and rsa or dsa for protocol version 2. Specify multiple values by separating them with commas. The
default is rsa1.
-v Specify verbose mode. Print debugging messages about progress.
-4 Force to use IPv4 addresses only.
-6 Forces to use IPv6 addresses only.
SECURITY
If a ssh_known_hosts file is constructed using ssh-keyscan without verifying the keys, users are vulnerable to man-in-the-middle attacks.
If the security model allows such a risk, ssh-keyscan can help in the detection of tampered keyfiles or man-in-the-middle attacks which
have begun after the ssh_known_hosts file was created.
EXAMPLES
Example 1 Printing the rsa1 Host Key
The following example prints the rsa1 host key for machine hostname:
$ ssh-keyscan hostname
Example 2 Finding All Hosts
The following commands finds all hosts from the file ssh_hosts which have new or different keys from those in the sorted file
ssh_known_hosts:
$ ssh-keyscan -t rsa,dsa -f ssh_hosts |
sort -u - ssh_known_hosts | diff ssh_known_hosts -
FILES
/etc/ssh_known_hosts
EXIT STATUS
The following exit values are returned:
0 No usage errors. ssh-keyscan might or might not have succeeded or failed to scan one, more or all of the given hosts.
1 Usage error.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWsshu |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
SEE ALSO ssh(1), sshd(1M), attributes(5)AUTHORS
David Mazieres wrote the initial version, and Wayne Davison added suppport for protocol version 2.
BUGS
ssh--keyscan generates
Connection closed by remote host
messages on the consoles of all machines it scans if the server is older than version 2.9. This is because ssh-keyscan opens a connection
to the ssh port, reads the public key, and drops the connection as soon as it gets the key.
SunOS 5.11 24 Jul 2004 ssh-keyscan(1)