Author Archives: admin

Change the smtp address of a Microsoft 365 Group

In order to create a remote powershell session to 365, open Windows Powershell and run below commands: $UserCredential = Get-Credential and enter your 365 credentials when prompted. Then type: $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic … Continue reading

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Freenas issue when replacing failed disk

When replacing a failed hard disk from the GUI you get the following error: “Unable to GPT format the disk ada…”. From the command line: sysctl kern.geom.debugflags=0x10 dd if=/dev/zero of=/dev/ada3 bs=512 count=1

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Install Zabbix on Centos 7

Zabbix requires Apache-Mysql-PHP stack to be installed in order to run. You can follow this previous post. Let’s download and install Zabbix rpm -ivh http://repo.zabbix.com/zabbix/2.4/rhel/7/x86_64/zabbix-release-2.4-1.el7.noarch.rpm yum install zabbix-server-mysql zabbix-web-mysql zabbix-agent We have to edit timezone in /etc/httpd/conf.d/zabbix php_value date.timezone Europe/Athens … Continue reading

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Install LAMP and WordPress on Centos 7

Install Mysql (MariaDB) and set password yum -y install mariadb-server mariadb systemctl start mariadb.service systemctl enable mariadb.service mysql_secure_installation Install Apache yum -y install httpd systemctl start httpd.service systemctl enable httpd.service Open ports in firewall firewall-cmd –permanent –zone=public –add-service=http firewall-cmd –permanent … Continue reading

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