我有一台 Ubuntu 18.04 服务器，它不断发送电子邮件，我可以在 中看到这些电子邮件/var/log/mail.log。我可能曾经将此服务器配置为使用 Landscape，但我实际上并没有使用它。
（服务器设置了 Postfix SMTP 中继，这些消息被中继到外部 API，然后被阻止。我想完全阻止发送这些邮件。）
每隔五分钟就会出现如下日志：
Jul 13 06:30:01 worker postfix/pickup[24215]: 133EB3EEDC: uid=108 from=<landscape>
Jul 13 06:30:01 worker postfix/cleanup[31293]: 133EB3EEDC: message-id=<20220713043001.133EB3EEDC@worker>
Jul 13 06:30:01 worker postfix/qmgr[17763]: 133EB3EEDC: from=<landscape@worker>, size=908, nrcpt=1 (queue active)
Jul 13 06:30:01 worker postfix/local[31295]: 133EB3EEDC: to=<landscape@worker>, orig_to=<landscape>, relay=local, delay=0.06, delays=0.02/0.02/0/0.01, dsn=2.0.0, status=sent (delivered to command: procmail -a "$EXTENSION")
Jul 13 06:30:01 worker postfix/qmgr[17763]: 133EB3EEDC: removed
我有以下与景观相关的包可用：
➜ ~ apt list | grep landscape
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
aws-status/bionic,bionic 0.2.3+159-0landscape1~25~ubuntu18.04.1 all
landscape-api/bionic,bionic 19.01-0ubuntu1 all
landscape-client/bionic 18.03~1075~git.256ad02~ubuntu18.04.1 amd64
landscape-common/bionic 18.03~1075~git.256ad02~ubuntu18.04.1 amd64 [residual-config]
landscape-hashids/bionic,bionic 19.01-0ubuntu1 all
landscape-hosted/bionic 19.01.1-0ubuntu1 amd64
landscape-server/bionic 19.01.1-0ubuntu1 amd64 [residual-config]
landscape-server-quickstart/bionic 19.01.1-0ubuntu1 amd64
python-commandant/bionic 0.5.1~bzr4-0landscape1~bzr66~ubuntu18.04.1 amd64
python-convoy/bionic,bionic,now 0.4.4ubuntu1~bzr39-0landscape2~bzr12~ubuntu18.04.1 all [residual-config]
python-stripe/bionic,bionic 429-0~landscape+1~ubuntu18.04.1 all
python-txaws/bionic,bionic 0.2.3+159-0landscape1~25~ubuntu18.04.1 all
然而，当我尝试卸载时landscape-common，我得到：
➜ ~ apt remove landscape-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package 'landscape-common' is not installed, so not removed
landscape未找到与以下内容相关的进程：
➜ ~ ps -ef | grep landscape
我注意到有一个 crontab/etc/cron.d/landscape-server每五分钟执行一次此操作：
*/5 * * * * landscape ( /opt/canonical/landscape/scripts/update_alerts.sh; /opt/canonical/landscape/scripts/landscape_profiles.sh; /opt/canonical/landscape/scripts/process_alerts.sh )
那么我该如何摆脱 Landscape？有一个landscape用户，但我不想直接删除它。
答案1
我显然曾经安装过 Landscape，但从未真正正确地卸载过它。鉴于没有关于如何卸载它的文档，我最终做了以下事情：
dpkg --purge landscape-server
这也删除了生成邮件流量的 crontab 文件。