Solved: ssh error no hostkey alg in Linux in RHEL 9 and in older versions.
By default, in RHEL 9, the older hosts can’t do the ssh directly. This is disabled by default. To enable this we need to update the crypto policies. I. Error...
Tag: ssh
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Solved: TERM environment variable not set during scp.
One of the interesting issue you may face is while scp, you get an error message and the file copy is skipped. I. Error Message [userA@NGEL-userA saket]$ scp userA@10.167.229.11:/tmp/NGEFTP.log_ngelinux001.tar.gz /tmp/...
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How to solve “Unable to negotiate with
port <##>: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1″ ? In this post, lets see an interesting error message and its resolution. The issue occurred in my case after upgrading OpenSSH. I. Error The file /var/adm/auth.log file on the servers...
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Solved: Error: Unable to negotiate with — port 22: no matching host key type found. Their offer: ssh-dss ?
In this article, we will see a common error message and its resolution. I. Error Message ngeaix001 saket $ ssh Administrator@10.254.0.56 Unable to negotiate with 10.254.0.56 port 22: no matching...
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How to add Yubikey to ssh agent in Linux or Mac OS ?
Today we will look at a small tip, how to add YUBIKEY to our ssh-agent in Linux so that it doesn’t ask for password every time and authenticate the user...
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How to work on multiple servers together in a single time ?
Today we will introduce you to a very useful tip to perform server operations on multiple servers together. For this we will use a a application called csshx shared by...
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How to run sudo command over ssh to remote servers via a script in Linux/Unix ?
Today in this post, we will look how to run a command with root user, i.e. using sudo on remote server. And how to place it in a loop to...
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How to view, setup and analyze sshd(Secure shell daemon) logs in redhat or centos linux ?
In this article, we will look how to view, analyze and setup SSHD logs on our Redhat or Centos Linux system. 1. Viewing SSHD Log file. ## For Ubuntu [root@nglinux...
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Docker: How to ssh into a docker machine with IP ?
In this post, we will look how to do ssh into a docker machine directly and to use it as a VM machine. Ideally we do ssh into a docker...