done>>$ping_out for ip_online in $(cat $ping_out|grep "up"|awk '{print $1}') do grep "$ip_online" hostnamelist >> $hosts_online done } authorized_file_transfer () { #enter the directory where hostnamelist is located #the hostnamelist file has a target host IP address that n...
you need a good grasp of SSH. I will not run you through the general concept as it has already been hashed out here at Enable Sysadmin. However, I do want to look at a potentially better way to use it. SSH is the single most used remote access protocol in the world. Therefore, it...
-RRemove all keys belonging to a hostname from a known_hosts file. -yRead a private OpenSSH format file and print an OpenSSH public key to stdout. This only listed the most commonly used options. For full usage, including the more exotic and special-purpose options, use theman ssh-key...
Tight online security has become mandatory for many of us, and, as malicious operators get smarter, tools and protections must get stronger to keep up. Secure Shell (SSH) is an encryption protocol that allows you to send data securely by pairing a public key with a private match. A variety...
ssh-keygen -R \[localhost\]:8022 - (Remove invalid host keys from ~/.ssh/known_hosts Useful if you have to tunnel ssh through a local port and it complains of the host key being different. Much easier than manually editing the file.). The best command li
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I used SSH to remotely connect to thousands of customer machines during my time as a support engineer, and I am sure that others have had a similar experience. With traditional SSH authentication, you need the username and password for the account you want to log in to every time that you...
[ Free online course:Red Hat Enterprise Linux technical overview. ] Über den Autor Tyler Carrigan Tyler is the Sr. Community Manager at Enable Sysadmin, a submarine veteran, and an all-round tech enthusiast! He was first introduced to Red Hat in 2012 by way of a Red Hat Enterprise Linux...
[ Free online course:Red Hat Enterprise Linux technical overview. ] About the author Tyler Carrigan Tyler is the Sr. Community Manager at Enable Sysadmin, a submarine veteran, and an all-round tech enthusiast! He was first introduced to Red Hat in 2012 by way of a Red Hat Enterprise Linux...