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Month: August 2018

Zimbra – deleting all email in queue by sender

Rumi, August 17, 2018January 15, 2022

As root user execute: /opt/zimbra/postfix/sbin/postqueue -p | tail -n +2 | awk ‘BEGIN { RS = “” } / sender@mail\.com/ { print $1 }’ | tr -d ‘*’ | /opt/zimbra/postfix/sbin/postsuper -d – To Delete ALL Messages From Queue /opt/zimbra/postfix/sbin/postsuper -d ALL or /opt/zimbra/common/sbin/postsupe -d ALL Another way to do this:…

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Syslog server with Rsyslog and LogAnalyzer in Ubuntu 12

Rumi, August 17, 2018

Installing Rsyslog from repository First make sure you have the latest update of Ubuntu 12.04 LTS sudo apt-get update && sudo apt-get upgrade Adding PPA repository sudo add-apt-repository ppa:adiscon/v8-devel If you get this error: “add-apt-repository: command not found” Try installing this python-software-properties package apt-get install python-software-properties Update your apt cache…

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Varnish daemon not listening on configured port – Hack for Debian or Ubuntu

Rumi, August 9, 2018

If you’re already troubled with varnish on changing listening ports from default. Here’s a little hack that worked on my Debian and Ubuntu distribution. sudo apt remove varnish sudo apt-get purge varnish # I manually remove the 3 files in created in /etc/systemd/system/* sudo apt install varnish sudo nano /lib/systemd/system/varnish.service…

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Install XRDP in Debian 9

Rumi, August 8, 2018

Install XRDP and TigerVNC server $ sudo apt install -y xrdp tigervnc-standalone-server Connect XRDP from Windows 10 Windows start button -> Windows Accesssories -> Remote Desktop Connection Input FQDN or IP address of XRDP server and connect to XRDP. XRDP RDP terminal will appear.  Select “XVNC” Session and connect.  

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Create a Linux Router with DHCP services

Rumi, August 5, 2018August 5, 2018

It’s pretty easy to build a Linux router even on a virutal machine. I’ve used virtualbox to create a LAN NAT router with DHCP services using webmin. However, I’m not going to cover on how to use a virtualbox VM 🙂 Let’s create the NAT Router first. On Webmin go…

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Install wkhtmltopdf on Debian 8, 9

Rumi, August 3, 2018January 18, 2019

Installation on Debian 8 apt-get update aptitude install xfonts-base xfonts-75dpi fontconfig xvfb mkdir ~/src/wkhtmltopdf -p cd ~/src/wkhtmltopdf wget https://bitbucket.org/wkhtmltopdf/wkhtmltopdf/downloads/wkhtmltox-0.13.0-alpha-7b36694_linux-jessie-amd64.deb dpkg -i wkhtmltox-0.13.0-alpha-7b36694_linux-jessie-amd64.deb echo ‘xvfb-run –server-args=”-screen 0, 1024x768x24″ /usr/local/bin/wkhtmltopdf $*’ > /usr/bin/wkhtmltopdf.sh chmod a+rx /usr/bin/wkhtmltopdf.sh ln -s /usr/bin/wkhtmltopdf.sh /usr/local/sbin/wkhtmltopdf /usr/local/sbin/wkhtmltopdf https://www.google.fr output.pdf Installation on Debian 9

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Myself…

Hi, I am Hasan T. Emdad Rumi, an IT Project Manager & Consultant, Virtualization & Cloud Savvyfrom Dhaka, Bangladesh. I have prior experience in managing numerous local and international projects in the area of Telco VAS & NMC, National Data Center & PKI Naitonal Root and CA Infrastructure. Also engaged with several Offshore Software Development Team.

Worked with Orascom Telecom-Banglalink, Network Elites as VAS partner, BTRC, BTT (Turkey) , Mango Teleservices Limited and Access to Informaiton (A2I-UNDP)

Currently working at Oracle Corporation as Principal Technology Solution and Cloud Architect.

You can reach me [h.t.emdad at gmail.com] and I will be delighted to exchange my views.

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