Applications Manager displays the "A suitable key format could not be found" error.
These steps are applicable only for Applications Manager versions below 16730.
Solution 1
Do nslookup <IPADDRESS>
Ex:- nslookup 10.10.11.31
Assume that it returns 3 host names.
- 31.11.10.10.in-addr.arpa name = prod-smtp1.erulemaking.net.
- 31.11.10.10.in-addr.arpa name = erule-outage.erulemaking.net.
- 31.11.10.10.in-addr.arpa name = nerulescfs01.erulemaking.net.
Here prod-smtp1.erulemaking.net is the resourcename of the monitor.
check the ssh private key files, whether private key files with the above 3 names have been created.
If 3 files have been created like below, check the content of the files. Here "adventnet_ssh_privateKey_file.txt_prod-smtp1.erulemaking.net" file alone have the content and other two files are empty file. Need to copy the content from "adventnet_ssh_privateKey_file.txt_prod-smtp1.erulemaking.net" file to other two files. Restart the services, it would resolve this issue.
-rw-rw-r--. 1 amadmin amadmin 1700 Oct 2 12:21 adventnet_ssh_privateKey_file.txt_prod-smtp1.erulemaking.net-rw-rw-r--. 1 amadmin amadmin 0 Oct 3 06:09 adventnet_ssh_privateKey_file.txt_erule-outage.erulemaking.net-rw-rw-r--. 1 amadmin amadmin 0 Oct 6 13:02 adventnet_ssh_privateKey_file.txt_nerulescfs01.erulemaking.net
If only two files have been created then create the 3rd file, and copy content from "non-zero(file size)" file to other two files. Restart the services.
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Solution 2
Do nslookup of the IPAddress.
nslookup 10.89.124.10 returns this name
spczrhl50020.cz.europe.intranet
Do nslookup of the hostname
nslookup spczrhl50020 returns this IPAddress
10.89.124.10
You need to check the ssh private key files with this hostname.
When checking the filename with this hostname "spczrhl50020", if we have the output like below, we can assume that DNS name has been updated. One file is created before dns update, and the other one is created after dns update. Need to copy the content from non-zero content file to empty file. Restart the services. This would resolve this issue.
adventnet_ssh_privateKey_file.txt_spczrhl50020.cz.europe.intranetadventnet_ssh_privateKey_file.txt_spczrhl50020.europe.intranet
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