Generally, this error means that that library was not found. The executable you tried to run depends on it. It could be somewhere but not at a location the system looks for libraries. Could it be that the system was upgraded and that library was upgraded too, to a newer version which is no longer ...so.1 ? Nobody stops you from installing older libraries in your system, check with your package manager how to do that (and once you are there check if libnsl is already installed and what version it is). However, that's a symptom which most likely is going to be followed by many more of the same nature.

Can you recompile that special perl you have and all the required modules in the new OS? If yes, then it's worth doing this with perlbrew and then use cpan or cpanm to install all required modules at required versions.

If you can't recompile but you only have binaries, then salva's suggestion building a container with Centos6 + installing those perl binaries is definetely a good option.

If you feel lucky then just keep adding those missing libraries with your package manager trying not mess up your current Centos. But as salva already said, those error messages indicate a 32-bit/64-bit incompatibility, which is much harder to resolve...

In reply to Re^3: Running a perl 5.8.6 CentOS 6-compiled app on a CentOS 8 platform by bliako
in thread Running a perl 5.8.6 CentOS 6-compiled app on a CentOS 8 platform by davebaker

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