After installing Ubuntu I suddenly realized I hadn’t set a root password, and without knowing the password I naturally couldn’t access the root user. I searched online and found out what was going on. Ubuntu’s default root password is random, meaning each boot has a new root password. We can enter the command in the terminal sudo p …
After spending time on Ubuntu DNS, you may encounter network issues. This article introduces solutions for configuring DNS and IP addresses on Ubuntu using both commands and configuration files.
Servers sometimes only have one network card. If you need it to handle both internal and external traffic, you’ll need to set up dual IPs. Under Ubuntu 12.04, you can directly modify /etc/network/interfaces and append the following content at the end:auto eth0:0iface eth0:0 inet staticaddress 192.168.2.230netmask 2 …
Recently I needed to use Linux iptables NAT for port mapping, but the interface machine only had one NIC and needed both internal and external network access.
Fix “connect: Network is unreachable” Error Solution: Locate the ifcfg-eth0 file under etc/sysconfig/network/ and configure it as follows: vi /etc/sysconfig/network-scripts/ifcfg-eth0 After opening, if any lines are missing please add them yourself: DEVICE=eth0BOOTPROTO=stati …
Applicable Systems: Linux (Redhat, CentOS, Debian, Ubuntu) * If your Linux cloud server has an unpartitioned data disk, follow these steps to partition and format it. The data disk will be divided into a single partition. 1. View the data disk…
1. What is downtime migration and how to avoid service unavailability caused by it. Cloud servers are deployed on physical machines. When the underlying physical machine experiences performance issues or other failures, the system initiates protective migration…
For hackers living in the post-PRISM era, times are tough. After Snowden exposed the NSA’s series of global surveillance programs, the free software community has been steadily developing effective countermeasures, and the Mempo project is one of them. The project’s goal is to provide the most secure desktop and ser…
This guide provides a step-by-step illustrated walkthrough for friends deploying Windows Server 2008 for the first time, hoping to help you improve your skills. The steps are as follows. 1 After inserting the Windows Server 2008 installation disc, restart the computer and set the BIOS boot order (note: set the BIOS boot order to boot from the CD-ROM), …
How to Use Tencent Cloud Yum Repository for Faster Software Installs on CentOS
To improve software installation efficiency on cloud servers and reduce the cost of downloading and installing software, Tencent Cloud provides a Yum download source. On CentOS, developers can quickly install software via YUM.
For the Yum download source, you can install software packages directly without adding a software source.
1. Installation step 1 …
