This is a text-only version of the following page on https://raymii.org: --- Title : Find all services using libssl to restart after an OpenSSL update Author : Remy van Elst Date : 14-07-2015 URL : https://raymii.org/s/snippets/Find_all_services_using_libssl_to_restart_after_an_OpenSSL_update.html Format : Markdown/HTML --- ![Openssl][1] When you update OpenSSL, the software that currently has the ssl libraries loaded in memory do not automatically load the updated libraries. A full system reboot resolves that problem, but sometimes that is not possible. This command shows you all the software that has loaded the libraries, allowing you to restart only those services. If you don't restart or reload after an update, the software might still be vulnerable to issues that the update fixed.

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Make sure you have the `lsof` command installed. Your package manager probably has this package. Using the following command you get a list of services currently using libssl: lsof | grep libssl | awk '{print $1}' | sort | uniq On a Directadmin shared hosting server this is the output: directadm exim httpd imap-logi managesie nrpe php pop3-logi pure-ftpd spamd Not all the filenames are complete but you can fill those in. If you leave out the last part of the command you can also see which specific library is in use: lsof | grep libssl Example output: imap-logi 449 dovecot mem REG 202,1 539869 85375 /usr/lib64/libssl.so.1.0.0 httpd 876 apache mem REG 202,1 539869 85375 /usr/lib64/libssl.so.1.0.0 [...] spamd 13513 root mem REG 202,1 444168 85398 /usr/lib64/libssl.so.1.0.1e Here you can see some services using a different library, those still need a restart. _Update_. Tzu sent me an email with his command to find all updated libraries and services using the old ones: lsof | grep 'DEL.*lib' | cut -f 1 -d ' ' | sort -u [1]: https://raymii.org/s/inc/img/OpenSSL_logo_small.png [2]: https://www.digitalocean.com/?refcode=7435ae6b8212 --- License: All the text on this website is free as in freedom unless stated otherwise. This means you can use it in any way you want, you can copy it, change it the way you like and republish it, as long as you release the (modified) content under the same license to give others the same freedoms you've got and place my name and a link to this site with the article as source. This site uses Google Analytics for statistics and Google Adwords for advertisements. You are tracked and Google knows everything about you. Use an adblocker like ublock-origin if you don't want it. All the code on this website is licensed under the GNU GPL v3 license unless already licensed under a license which does not allows this form of licensing or if another license is stated on that page / in that software: This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Just to be clear, the information on this website is for meant for educational purposes and you use it at your own risk. I do not take responsibility if you screw something up. Use common sense, do not 'rm -rf /' as root for example. If you have any questions then do not hesitate to contact me. See https://raymii.org/s/static/About.html for details.