Renamed the /var/log file to a different name
created a new directory /var/log
rebooted
server started but httpd did not (neither did server-manager)
examined boot.log2030415011208
found these files missing
/var/log/error_log.20030415011201
/var/log/admin_error_log.20030415011206
created them, rebooted httpd works fine now, can read my logfiles through server-manager again.
found directory /var/log/squid is missing, recreated that directory
hope everything is fine again