今天升级kali 导致apache 无法启动，问题如下：
[email protected]:~# apache2 -k start
[Sat Jan 21 21:01:16.273933 2017] [core:warn] [pid 3248] AH00111: Config variable ${APACHE_RUN_DIR} is not defined
apache2: Syntax error on line 80 of /etc/apache2/apache2.conf: DefaultRuntimeDir must be a valid directory, absolute or relative to ServerRoot
或：
[email protected]:/etc/apache2# apache2 -k start
[Sat Jan 21 22:05:56.705639 2017] [core:warn] [pid 10577] AH00111: Config variable ${APACHE_PID_FILE} is not defined
[Sat Jan 21 22:05:56.705819 2017] [core:warn] [pid 10577] AH00111: Config variable ${APACHE_RUN_USER} is not defined
[Sat Jan 21 22:05:56.705866 2017] [core:warn] [pid 10577] AH00111: Config variable ${APACHE_RUN_GROUP} is not defined
[Sat Jan 21 22:05:56.705919 2017] [core:warn] [pid 10577] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Sat Jan 21 22:05:56.713958 2017] [core:warn] [pid 10577:tid 3073427200] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Sat Jan 21 22:05:56.714454 2017] [core:warn] [pid 10577:tid 3073427200] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Sat Jan 21 22:05:56.715159 2017] [core:warn] [pid 10577:tid 3073427200] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
AH00543: apache2: bad user name ${APACHE_RUN_USER}
这是由于升级后apache 配置文件变化，没有导入新的apache 环境变量。
解决办法 :
source /etc/apache2/envvars
或
. /etc/apache2/envvars
时间： 2024-10-27 12:28:26