Centos Close Systemd Port 111
In Centos/RHEL, systemd listens on port 111 which is used by rpcbind service, for security reason, close it or disable rpcbind service.
Shaun
Tcpdump Container Network Traffic
Get pod host IP and container ID SSH to host where pod is running. Get container interface id On the host, get interface Tcpdump interface
OVS调试排查指南
一、查看网卡状态：netstat -i 二、ARP操…
Mysql 8 CheatSheet
Database Operation Table Operation User Operation Backup/Restore
Mysql 8.0 Allow Root Remote Login
When setting up mysql with mysql_secure_installation, Disallow root login remotely set to no, but login with root user from remote is still blcoked, try the other methods, such as blow. mysql> GRANT ALL PRIVILEGES ON *.* TO ‘root’@’localhost’; mysql> UPDATE…
Angular Application Witch Ace Editor Error
In HyperKuber Web Project which is using angular 13 with ace editor for yaml/json display, an error occured in browser console, as follows blob: Uncaught DOMException: Failed to execute ‘importScripts’ on ‘WorkerGlobalScope’: The script at ” failed to load.at blob::1…
ShaunOS Open Sourced
Havent updated this site for a long time. this is a normal update. I have decided to opensource shaunos which was written by me from scrach 4 years ago. And i have no time to maintain it, so i upload…
openshift origin multi-master manually deployment part-5
8,deply route and docker registry service. deploy a router, running on three master nodes oadm policy add-scc-to-user hostnetwork -z router oadm router router –replicas=3 –selector=’region=infra’ \ –service-account=router deploy docker registry running on node1, on node1: mkdir -p /opt/openshift-registry chown 1001:root…
openshift origin multi-master manually deployment part-4
7, setup node service, we install node service on all nodes, including master nodes. yum install -y centos-release-openshift-origin yum install -y origin-node origin-pod origin-sdn-ovs origin-dockerregistry vi net.ipv4.ip_forward = 1 sysctl -p