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Recovery Mode

PostgreSQL Troubleshooting

Error the database system is in recovery mode Sit Env Host: 192.168.80.9 psql -h apple-pgsql...

Updated 1 month ago by kugarocks

CURL SSL/TLS Failed

2025

Errors RST Reset. curl -v https://example.com * Host example.com:443 was resolved. * IPv6: (none...

Updated 1 month ago by kugarocks

Systemd

Linux Process

Priority /etc > /run > /lib > /usr/lib highest to lowest/etc/systemd/system/ /run/systemd/syste...

Updated 1 month ago by kugarocks

Quick Start

PHP Laravel

Installation composer global require laravel/installer Errors Change Source. composer config -...

Updated 1 month ago by kugarocks

Commands

Opensearch

Check Health curl http://172.17.0.2:9200/_cluster/health?pretty Set Replicas Num curl -X PUT "...

Updated 2 months ago by kugarocks

Certificate

K8s Ingress

Ingress TLS Config spec: ingressClassName: nginx-external rules: - host: foo.com http:...

Updated 2 months ago by kugarocks

conntrack

Linux

conntrack usage conntrack -L | awk '{print $5}' | cut -d= -f2 | sort | uniq -c | sort -nr | head

Updated 3 months ago by kugarocks

netfilter-persistent

Linux

Installation apt-get install -y netfilter-persistent apt-get install -y iptables-persistent Us...

Updated 3 months ago by kugarocks

Multiple Remotes

OpenVPN

Configuration proto tcp-client # 服务器地址和端口 remote xxx xxx remote xxx xxx # remote 建立连接的超时时间 con...

Updated 3 months ago by kugarocks

fio

Disk

fio(flexible I/O tester) is a tool that will spawn a number of threads or processes doing a parti...

Updated 3 months ago by kugarocks