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212b6f5d MW |
1 | Here's how to remove sendmail from your system. |
2 | ||
3 | 1. Find sendmail in your boot scripts. It's usually in either /etc/rc or | |
4 | /etc/init.d/sendmail. It looks like | |
5 | sendmail -bd -q15m | |
6 | -q15m means that it should run the queue every 15 minutes; you may | |
7 | see a different number. Comment out this line. | |
8 | ||
9 | 2. Kill the sendmail daemon. You should first kill -STOP the daemon; if | |
10 | any children are running, you should kill -CONT, wait, kill -STOP | |
11 | again, and repeat ad nauseam. If there aren't any children, kill | |
12 | -TERM and then kill -CONT. | |
13 | ||
14 | 3. Check whether you have any messages in the sendmail queue, | |
15 | /var/spool/mqueue. If you do, you will have to try flushing them with | |
16 | sendmail.bak -q. If necessary, wait a while and run sendmail.bak -q | |
17 | again. Repeat until the queue is empty. This may take several days. | |
18 | ||
19 | 4. Remove the setuid bit on the sendmail binary, to prevent local users | |
20 | from gaining extra privileges through sendmail's security holes. The | |
21 | binary may be at several different locations: | |
22 | # chmod 0 /usr/lib/sendmail | |
23 | # chmod 0 /usr/sbin/sendmail | |
24 | # chmod 0 /usr/lib/sendmail.mx | |
25 | ||
26 | 5. Move the sendmail binary out of the way: | |
27 | # mv /usr/lib/sendmail /usr/lib/sendmail.bak | |
28 | # mv /usr/sbin/sendmail /usr/sbin/sendmail.bak |