1. Boot from the CD/USB drive, select the option related to cracking the password, and confirm, as shown below:
2. There are two options here. If you’ve forgotten the password on your own computer, it’s recommended to select “Clear Windows Login Password.” After clearing the password, the password will be removed, and you can set a new one after entering the system. Select &l…
Here’s how to crack the root password using CentOS as an example: 1. When the boot menu appears during startup, use the up and down arrow keys to select the system for which you forgot the password, then press “e”. 2. Next, you will see a screen like the one shown below; use the up and down arrow keys again to select the latest …
vi /etc/ssh/sshd_config锛宖ind Port 22锛宼hen change port 22 to your desired port number锛宺estart SSH service锛?etc/init.d/sshd restart锛宼hen test SSH connection锛?ssh localhost -p your port number锛宑onnection successful.
If you want to be safe …
A server suddenly became inaccessible via Remote Desktop, even though port 3389 was open. It also could not be pinged, but after turning off its Windows Firewall, it could be pinged. It could still use Remote Desktop to connect to other servers. When a client tried to connect, it showed a message like “The connection was interrupted due to a network error…
Ubuntu 13.04 has been released for a while. The first step after installing is to change software and update sources. Netease sources for Ubuntu are fast. Related: Ubuntu 13.04 Official Release…
Python 3.3.5 was released last month, and compared to previous Python versions, it resolves some key issues. For detailed release information about this version, check the changelog. To install, a PPA is available (supporting all Ubuntu versions and derivatives). Open a terminal and enter the command: sudo add-apt-repository …
I’m a Linux operations engineer, and I’ve gained some insights in this field. Let me talk about the tools you need to master. Speaking of tools, people outside the industry might call them skills, but inside the industry we generally refer to them as tools — the essential tools an operations engineer must master. I’ll roughly list a few areas; with these, getting started should be fairly straightforward. Linux …
System Environment: A newly installed PC server machine serves as the application server, with Windows 2003 as the operating system.
After deploying the service on the system: using Tomcat, the service port is set to 8080.
Issue: The application can be accessed on the server using http://localhost:8080/sysname/, but…
Just saw someone discussing Linux package dependency issues. Software dependencies are indeed quite a headache, especially for newcomers. Personally, I have three methods for resolving these dependency problems.
(Taking Fedora as an example below)
1. Whenever possible, install packages already available in the software repositories …
How to Identify Remote Operating System Using TTL in Ping Command In simple terms, TTL stands for Time to Live, which means the lifetime of a data packet.
First, it’s important to understand that the ping command uses the network layer protocol ICMP, so TTL refers to the lifetime of a network data packet at the network layer. If you’re unfamiliar with this concept, please review …
