03-27-2014
Server is accessible only via IPMI, help
Server is accessible only via IPMI. SSH and web control panel is timeout. Takes several hours. Server dont have high load or suspicious processes.
I checked /etc/hosts.deny and restarted ssh, but nothing
Last edited by postcd; 03-27-2014 at 03:50 PM..
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi
i am using HPUX11.00 and i am facing a starnge problem
after some time when i log on a message is coimng
NFS server not responding still trying....and it keps on coming there is no other way but to log out..form the server and start once again...
there is no file system exported or NFS... (3 Replies)
Discussion started by: Prafulla
3 Replies
2. UNIX and Linux Applications
Hi guys
I'm going to be moving a linux box into collocation to support the growing demands of my sites and have been trying to figure out if Xen is right for me. I'd appreciate hearing some real-world experience with the overhead involved and the optimal ways to slice up a box. Right now I feel... (1 Reply)
Discussion started by: Karma
1 Replies
3. UNIX and Linux Applications
Hello,
I need to build a server with both solaris and linux guest VM using full virt on x64.
The guest os are solaris 10 (not opensolaris) and linux RedHat (Centos) and Suse.
I really cant make run a solaris 10 domU on Linux (hang after grub loader ..... ) Dom0 neither on opensolaris 11 xvm... (0 Replies)
Discussion started by: manifesto
0 Replies
4. Solaris
Is there any other virtualisation made in solaris 10 other than zones and LDOMS? :confused: (3 Replies)
Discussion started by: priky
3 Replies
5. Solaris
Hi,
I am using compaq t5207tu model with 60gb harddisk and 2.5gb RAM.Its dual boot-Windows XP and Solaris. I tried installing SUN xVM on solaris to make client -server architecture (32 bit processor and 32 bit OS ) -guest OS (solaris 10)on host OS(Solaris 10). But whenever i try to install... (14 Replies)
Discussion started by: shruti_gupta
14 Replies
6. UNIX for Dummies Questions & Answers
I'm in panic mode. This isn't a production server, however, is very vital to office.
Sun V240 with Solaris 9, stopped accepting ftp sessions. When I tried to remote into box, it didn't respond. I have tried rebooting to boot in single user mode, no luck. I can see that it is ON but I can't get it... (3 Replies)
Discussion started by: mkeis1144
3 Replies
7. UNIX for Advanced & Expert Users
Hi gurus,
OS = SunOS 5.8
Not sure whether to post this in the scripting one or to advance and experts. Am posting on both since there is two things that am wanting to achieve.
Am currerntly having NFS server errors below. At this stage, I am not sure whether I am having a SAN storage issue... (2 Replies)
Discussion started by: newbie_01
2 Replies
8. Red Hat
Greetings!
I'm testing a failover solution for NFSv4 on RHEL6 with latest updates.
My script umounts (umount -lf /share) the faulty NFS share if it sees that's hanging on the client (the NFS daemon is down on the NFS server) and it mounts the share from another healthy NFS server.
Sometimes... (4 Replies)
Discussion started by: Arsene Lupen
4 Replies
9. Red Hat
I have RHEL5 server
Sometimes ping timeout occured and i can not access server from any tool
or ILOM
Any ideas how to solve this? (5 Replies)
Discussion started by: rafat_nasar2010
5 Replies
10. UNIX for Beginners Questions & Answers
Hello,
I got the below error on my AIX system when doing a df command
NFS server xxx not responding still trying
We check and know that the NFS server is not available anymore. So we would like to unmount it, but no help.
/ > umount /mountpoint/
umount: Could not find anything to... (4 Replies)
Discussion started by: Phat
4 Replies
LEARN ABOUT MOJAVE
ssh-keyscan
SSH-KEYSCAN(1) BSD General Commands Manual SSH-KEYSCAN(1)
NAME
ssh-keyscan -- gather SSH public keys
SYNOPSIS
ssh-keyscan [-46cDHv] [-f file] [-p port] [-T timeout] [-t type] [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, the format of which is documented in sshd(8). ssh-keyscan provides a minimal interface suitable for use by shell and
perl scripts.
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 sshd(8). For scanning, one does not
need login access to the machines that are being scanned, nor does the scanning process involve any encryption.
The options are as follows:
-4 Force ssh-keyscan to use IPv4 addresses only.
-6 Force ssh-keyscan to use IPv6 addresses only.
-c Request certificates from target hosts instead of plain keys.
-D Print keys found as SSHFP DNS records. The default is to print keys in a format usable as a ssh(1) known_hosts file.
-f file
Read hosts or ``addrlist namelist'' pairs from file, one per line. If '-' is supplied instead of a filename, ssh-keyscan will read
from the standard input. Input is expected in the 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
-H Hash all hostnames and addresses in the output. Hashed names may be used normally by ssh(1) and sshd(8), but they do not reveal
identifying information should the file's contents be disclosed.
-p port
Connect to port 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 considered unavailable. The default is
5 seconds.
-t type
Specify the type of the key to fetch from the scanned hosts. The possible values are ``dsa'', ``ecdsa'', ``ed25519'', or ``rsa''.
Multiple values may be specified by separating them with commas. The default is to fetch ``rsa'', ``ecdsa'', and ``ed25519'' keys.
-v Verbose mode: print debugging messages about progress.
If an ssh_known_hosts file is constructed using ssh-keyscan without verifying the keys, users will be vulnerable to man in the middle
attacks. On the other hand, 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.
FILES
/etc/ssh/ssh_known_hosts
EXAMPLES
Print the RSA host key for machine hostname:
$ ssh-keyscan -t rsa hostname
Find 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,ecdsa,ed25519 -f ssh_hosts |
sort -u - ssh_known_hosts | diff ssh_known_hosts -
SEE ALSO
ssh(1), sshd(8)
Using DNS to Securely Publish Secure Shell (SSH) Key Fingerprints, RFC 4255, 2006.
AUTHORS
David Mazieres <dm@lcs.mit.edu> wrote the initial version, and Wayne Davison <wayned@users.sourceforge.net> added support for protocol ver-
sion 2.
BSD
March 5, 2018 BSD