Category Archives: Linux Maintenance

By November 11, 2018

Centos 7X Enable FTP TLS Reference https://linuxconfig.org/setup-secure-proftpd-server-on-centos-7-with-tls Set the port range in /etc/proftpd.conf echo “PassivePorts 49152 65534″ >> /etc/proftpd.conf Open the Firewall ports firewall-cmd –add-port=49152-65534/tcp –permanent firewall-cmd –reload Validation firewall-cmd –list-ports Update the options in /etc/sysconfig/proftpd From PROFTPD_OPTIONS=”” To PROFTPD_OPTIONS=”-DTLS” Verify TLS has been setup in /etc/proftpd.conf TLSEngine on TLSRequired on TLSRSACertificateFile /etc/pki/tls/certs/proftpd.pem TLSRSACertificateKeyFile /etc/pki/tls/certs/proftpd.pem


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By November 11, 2018

Error: Mailbox access error: Panic: file mail-index-sync-keywords.c: assertion failed Cause Corrupted Dovecot index file. Resolution Connect to the server using SSH. Move the file /var/qmail/mailnames/example.com/john.doe/Maildir/dovecot.index: # cd /var/qmail/mailnames/example.com/john.doe/Maildir/ # mv dovecot.index{,.back}


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By October 31, 2018

Error xxxxxx crond: () FAILED to authorize user with PAM (Authentication token is no longer valid; new one required) RUN chage -l This can be due to the user’s password has expired.


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By August 27, 2018

Can I safely delete files in /var/cache/PackageKit/metadata/updates/packages? You can refresh the cache using pkcon refresh force -c -1


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By July 28, 2018

ERROR: protocol negotiation failed: NT_STATUS_IO_TIMEOUT   Check hostnamectl and make sure the hostname is listed in /etc/hosts next to 127.0.0.1


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