Question: Hi, I was trying to rehash the certificates on CentOS 7 using c_rehash. However, I see the error c_rehash command not found.
$ c_rehash $HOME/.certs/ -bash: c_rehash: command not found
I thought the command should be installed as part of OpenSSL and OpenSSL development packages, but that’s not the case.
I could not install c_rehash via YUM as well.
# yum install c_rehash Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.piconets.webwerks.in * extras: mirrors.piconets.webwerks.in * updates: centos.mirror.snu.edu.in base | 3.6 kB 00:00 extras | 2.9 kB 00:00 updates | 2.9 kB 00:00 Not using downloaded updates/repomd.xml because it is older than what we have: Current : Thu Aug 5 15:41:14 2021 Downloaded: Tue Aug 3 16:10:37 2021 No package c_rehash available.
Can you help me fix this issue? – Sam.
Solution: Install C_rehash script
Sam, c_rehash script is available as part of the OpenSSL Perl package. So installing openssl-perl should solve the issue.
# yum install openssl-perl
or
# yum install /usr/bin/c_rehash Resolving Dependencies --> Running transaction check ---> Package openssl-perl.x86_64 1:1.0.2k-21.el7_9 will be installed --> Processing Dependency: perl(WWW::Curl::Easy) for package: 1:openssl-perl-1.0.2k-21.el7_9.x86_64 --> Running transaction check ---> Package perl-WWW-Curl.x86_64 0:4.15-13.el7 will be installed --> Finished Dependency Resolution
That’s it!
