Install MySQL 5.7 on CentOS 7 Rumi, August 10, 2022 Preqrequsite: It’s better to have installed development tools and disable NetworkManager for a produciton envrionment. You can optionally follow the steps- Disabling NetworkManager: systemctl stop NetworkManager systemctl disable NetworkManager Install Development Tools: yum group install “Development Tools” Remove MariaDB pre-installed libraries- yum -y remove mariadb-libs Enable MySQL Repository First of… Continue Reading
Postfix SMTP Rotating IP using IPTables Rumi, August 1, 2022 I got 5 Public IPs. i’m Gonna configure them, so Postfix can use multiple interfaces/ips for outgoing smtp connections. First we need creating Interface aliases for those 5 public IPs. In my system, using centos: # cd /etc/sysconfig/network-scripts/ # cp ifcfg-eth0 ifcfg-eth0:1 Edit ifcfg-eth0:1 # vi ifcfg-eth0\:1 DEVICE=eth0 <– default… Continue Reading
vestacp open: /etc/named.conf: permission denied Rumi, August 1, 2022 This was the error I was getting after a doing a little change in the named.conf in my newly installed vesta control panel. While restarting the named, I was getting this error- [root@vesta2 ~]# systemctl status named.service ● named.service – Berkeley Internet Name Domain (DNS) Loaded: loaded (/usr/lib/systemd/system/named.service; enabled; vendor… Continue Reading
Observium Installer Script on Ubuntu 20.04 or Debian 11 Rumi, July 25, 2022 Automated Installation Observium has an automated install script for use on Ubuntu and Debian systems. Using the automated installation script is as easy as downloading it, running it and answering a few simple questions, start with: wget http://www.observium.org/observium_installscript.sh chmod +x observium_installscript.sh ./observium_installscript.sh You may need to install wget on bare… Continue Reading
Reset Administrator’s password in Windows Server 2008 / R2 Rumi, July 25, 2022July 8, 2023 Step by step to reset Windows 2008 or Windows 2008 R2 edition from console: Insert DVD to server and restart Boot to DVD Select Repair your computer – Choose ‘Use recovery tools that …’ : Choose ‘Windows Server 2008 R2’ Command Prompt, type : + X:\Sources; type C: + C:\Dir… Continue Reading
Windows IP settings from old Windows network adapters after card replacement Rumi, July 25, 2022 After replacing an old motherboard with a new one, the NIC is different, has a new MAC address and generally needs a new TCP/IP configuration. However the old NIC is still somewhere there with its designated IP address and the rest. Question: is it possible to retrieve those settings (most important… Continue Reading
Build PPPoE server using PfSense Rumi, June 29, 2022 Before building a PPoE system, it is estimated to assume that we’re building it on the following principal and prerequisite conditions- It’ll be a NAT PPPoE router At least 2 Interface we’ll be needing- 1 for WAN/Internet/Uplink and the other for LAN/PPoE user. A reserved LAN IP for PPPoE server… Continue Reading
Enabling Ping requests to OCI Instance Rumi, June 29, 2022 If you want to test with Ping requests you’ll need to modify the Ingress rules on the security list associated with the VCN, Subnet, network device, thing, what ever, to allow ICMP packets. Allowing ICMP traffic is not required, it’s an option. Please only take this option if you understand… Continue Reading
Generating an SSH Key Pair on Windows Using the PuTTYgen and use it on OCI with machine instance Rumi, June 29, 2022 The PuTTYgen program is part of PuTTY, an open source networking client for the Windows platform. To generate an SSH key pair on Windows using the PuTTYgen program: Download and install PuTTY or PuTTYgen.To download PuTTY or PuTTYgen, go to http://www.putty.org/ and click the You can download PuTTY here link…. Continue Reading