Hi all,
Have used ftp to transfer files from remote host to localhost.
I was wondering how can I ftp into remote hosts.
for example from a unix box, connect to an external server and then ftp that file into mainframe ? I would like to avoid pulling it to unix box and then ftping to mainframe.... (1 Reply)
Hi gurus of unix!!!!, I have a little question. I nedd your helps
The scenarios is the following
I have tree equipment that are installed in different places. I use a carrier to interconnect the equipment.
Some Port's (TCP) need to be open for an application that must be function correctly.
For... (3 Replies)
Hello,
Is there any way to check which user and from which IP executed a command to the server.I need something like the history but with information also from which IP the command executed.
Thanks in advance (8 Replies)
Hi,
I've been looking for a way to execute a console program (is in windows but by now I accept the linux way) from a linux machine, but this program has to be opened in the remote side. Linux machine acts only as a "signaling" host. My program has to open the camera in the remote side, but only... (7 Replies)
I monitor all my servers using Nagios. Now, for Nagios to run certain checks, it has to connect to remote hosts via a certain port. Lets say the port is 8090.
Now, when Nagios connects to a remote host (for an example) via port 8090, and it has to run 6 checks (scripts) on that remote host, i... (2 Replies)
so i'm doing something similar to this:
ssh myname@remotehost 'tail -800 /var/log/some.log'
Now, as you can see, this is a lot of data to be passing back and forth over a network.
Is there anything i can do to make the output smaller (zip it on the fly, compress?) and then when the data... (4 Replies)
Am trying to copy a tar file onto a series of remote hosts and untar it at the destination. Need to do this without having to do multiple ssh.
Actions to perform within a single ssh session via shell script
- copy a file
- untar at destination (remote host)
OS : Linux RHEL6 (3 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)
Hi all,
i'm trying to gether multiple pattern on remote hosts, and trying to print hostname and the pattern,
ssh remoteserver1 -C 'hostname 2>&1;cat /var/log/server1.log | awk -F ";" '"'"'{ print " "$2" "$5}'"'"'| sort | uniq -c | sort -g -r '
The output is the following,
remoteserver1
... (8 Replies)
Discussion started by: charli1
8 Replies
LEARN ABOUT SUNOS
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 con-
sidered 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 5.10 24 Jul 2004 ssh-keyscan(1)