Resize a Linux LVM Disk Online: growpart, pvresize, and lvextend
Expand a Linux LVM disk online with growpart, pvresize, lvextend, and the correct XFS or ext4 filesystem growth command, including pre-change checks and verification.
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Technical articles, tutorials, and development insights.
Linux deployment of samba+AD domain control authentication
Since a shared network disk is required internally for everyone to share, a samba service is needed.…
Fix Elasticsearch cluster_block_exception When Logstash Writes to a Read-Only Index
Diagnose Logstash 403 cluster_block_exception failures caused by writes to a read-only Elasticsearch index, then choose between clearing the block or dropping expired events.
Compile and install Nginx to hide version information
Business systems are often subject to regular penetration testing and provide external Web services.…
Binary deployment of Kubernetes cluster version 1.33
A Kubernetes cluster deployed a few years ago needs to be gradually updated. Since I haven't recorde…
Linux system configuration NVIDIA graphics driver and CUDA and CUDNN
Preface Deploy a GPU computing server for private AI model training. This deployment uses the Ubuntu…
Kafka deletes topic and receives Received UNKNOWN_TOPIC_OR_PARTITION alarm
Background I encountered this problem because I had debugged the log before and created a topic and …
Configuring SSL VPN on Hardware Firewall
Preface Nowadays, the use of VPN is a very common way of working in enterprises. Some internal knowl…
Fix NVIDIA-SMI 'Couldn't Communicate with the NVIDIA Driver'
Repair the NVIDIA kernel module with DKMS when nvidia-smi cannot communicate with the NVIDIA driver after a CUDA or driver change, then verify the loaded module.
Add a new hard disk in Linux, set the partition format to GPT and use LVM
Written in front In the past, the Linux system in the production environment used one disk to store …
Configure LAN yum source and apt source service
Sometimes, for the convenience of the server environment, access to the Internet is prohibited regar…
Fix Logstash Grok Parsing Failures Caused by Invisible Control Characters
Normalize the invisible ASCII group-separator character in Linux audit logs before Logstash Grok parsing, preventing repeated _grokparsefailure events.
Centos 7 Mounting ISO Images to Configure Local Offline Yum Sources
Sometimes do projects, the party to the server security management is more stringent, the server env…
Configure Nginx as a WebSocket Reverse Proxy
Configure Nginx WebSocket reverse proxy headers for ws and wss traffic, including Upgrade and Connection handling for persistent bidirectional connections.
sshd status display activating (start)
Weekend rest at home, suddenly the alarm shows that the online service Down, after two minutes of no…