當(dāng)建站助手提示數(shù)據(jù)庫連接失敗時,密碼錯誤是常見原因之一,需按以下步驟排查:
systemctl status mysql
確認(rèn)服務(wù)正常運行防火墻攔截數(shù)據(jù)庫端口是導(dǎo)致連接失敗的另一個關(guān)鍵因素,需執(zhí)行以下操作:
sudo ufw status
sudo ufw allow 3306/tcp
對于復(fù)雜場景的數(shù)據(jù)庫連接問題,建議采用組合排查策略:
telnet [IP] 3306
測試網(wǎng)絡(luò)連通性GRANT ALL PRIVILEGES ON *.* TO 'user'@'%'
tail -f /var/log/mysql/error.log
數(shù)據(jù)庫連接問題主要源于密碼配置錯誤和網(wǎng)絡(luò)限制。通過分步驗證服務(wù)狀態(tài)、核對認(rèn)證信息、調(diào)整防火墻策略等系統(tǒng)化排查,可快速恢復(fù)數(shù)據(jù)庫連接。建議定期檢查配置文件備份和服務(wù)器安全組規(guī)則,預(yù)防類似問題再次發(fā)生。
2025-03-11
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