Retry time not reached for any host after a long failure period

Exim issue most likely due to a corrupt Exim db. Symptom: Bounced emails with the message: “retry time not reached for any host after a long failure period” Solution: For cPanel: cd /var/spool/exim/db rm -f retry retry.lockfile rm -f wait-remote_smtp wait-remote_smtp.lockfile service exim restart For Linux: /usr/sbin/exim_tidydb -t 1d /var/spool/exim retry > /dev/null /usr/sbin/exim_tidydb -t … Read more

Clear systemd journal /var/log/journal

Systemd logs that are stored in /var/log/journal can be cleared by using journalctl command. Here are some useful commands To find out the size of the log folder: du -sh /var/log/journal/ Clear systemd journals older than n days: journalctl –vacuum-time=30d Clear systemd journals if they exceed n storage space: journalctl –vacuum-size=1G

Mirror offline HTML website with WGET

This is an example how to convert a website in STATIC HTML: wget –mirror –convert-links –adjust-extension –page-requisites –no-parent http://mywebsite.ca –mirror – Makes (among other things) the download recursive. –convert-links – convert all the links (also to stuff like CSS stylesheets) to relative, so it will be suitable for offline viewing. –adjust-extension – Adds suitable extensions … Read more

Autostart Virtualbox Machine

Edit the config file nano /etc/default/virtualbox Add the lines: VBOXAUTOSTART_DB=/etc/vboxVBOXAUTOSTART_CONFIG=/etc/vbox/autostart.cfg Fix permissions: chgrp vboxusers /etc/vboxchmod 1775 /etc/vbox Start and enable the service: systemctl start vboxautostart-servicesystemctl enable vboxautostart-service

Use RemoteBox on Ubuntu

Download RemoteBox wget http://remotebox.knobgoblin.org.uk/downloads/RemoteBox-2.6.tar.bz2 Ensure the required dependencies are installed as follows: apt-get install libgtk2-perl libsoap-lite-perl freerdp-x11 tigervnc-viewer To launch RemoteBox, unpack the previously downloaded RemoteBox tarball and run the ‘remotebox’ executable. vboxweb-service need to be installed and active on the target server. The following article describe how to install a Headless Server on CentOS … Read more

Reset Nextcloud password in CLI

Login via SSH to the server $ sudo -u www-data php /var/www/nextcloud/occ user:resetpassword admin Enter a new password: Confirm the new password: Successfully reset password for admin

Website reputation tools

Free website malware and security scanner https://sitecheck.sucuri.net TrustedSource.org https://www.trustedsource.org/?p=mcafee

VirtualBox Guest Additions not working in Lubuntu 17.04 – Solved

Environnement: Host OS: Windows 10 x64 VirtualBox Graphical User Interface Version 5.1.26 r117224 (Qt5.6.2) Guest OS: Lubuntu 17.04 VBOXADDITIONS_5.1.26_117224 Problem: I manually installed VirtualBox Guest Additions from VBOXADDITIONS_5.1.26_117224 ISO and restarted the guest. The bidirectional clipboard and the drag and drop still not working. Solution: Installation of Guest Additions from Ubuntu repository. Command: sudo apt-get install virtualbox-guest-dkms … Read more

10 Ways to transform PDFs in Online Publications

The purpose of this article is to explore solutions that allow us to transform Adobe PDF files into a page turning digital book or magazine. The main features that we are looking are: multi-platform: desktop, tablet, mobile etc. page-turning or flipping feature Without being exhaustive, here is a list of the most popular solutions for … Read more

Categories Web

cPanel not starting with Internal Server Error – fix

The problem: All websites are down with Internal Server Error 500 Symptoms: Cpanel wasn’t loading with the following error: Internal Server Error 500 Can’t fork: Cannot allocate memory at /usr/local/cpanel/Cpanel/SafeRun/InOut.pm line 40. cpsrvd/11.62.0.15 Server at hostname.example.com How I fixed it? First of all I was trying to increase this limit by searching for “Max cPanel … Read more