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https://serverfault.com/questions/583820/cant-log-in-when-nofile-is-set-to-unlimited-in-etc-security-limits-conf
https://access.redhat.com/solutions/43926
https://unix.stackexchange.com/questions/297262/cant-login-after-editing-etc-security-limits-conf
https://access.redhat.com/solutions/33993
https://bbs.archlinux.org/viewtopic.php%3Fid%3D191406
https://www.linuxquestions.org/questions/linux-newbie-8/cannot-login-ssh-and-console-after-edit-limits-conf-4175624598/
http://www.google.de/url?url=http://www.linuxforums.org/forum/suse-linux/202034-unable-log-root-after-change-file-open-limit.html
https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.6.5/bk_security/content/kerb-config-limits.html
https://askubuntu.com/questions/162229/how-do-i-increase-the-open-files-limit-for-a-non-root-user
https://superuser.com/questions/740000/modify-and-apply-limits-conf-without-reboot
https://easyengine.io/tutorials/linux/increase-open-files-limit
https://stackoverflow.com/questions/34588/how-do-i-change-the-number-of-open-files-limit-in-linux
http://www.google.de/url?url=http://www.arrayserver.com/wiki/index.php%3Ftitle%3DSetting_up_ulimit_for_ArrayServer