This is a quick write up on how to delay mail delivery using postfix. My setup is a couple of internet facing mail relays and an internal mail server, I recently needed to make some changes to the internal mail server so I didn’t want the mail relays sending the mail server mail (and [...]

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I always forget how to ldapmodify, so here’s a quick example - the best site that I found quickly seems to be this wiki
mail:~/ldap# ldapmodify -x -D "cn=Manager,dc=minigeek,dc=org" -WEnter LDAP Password: dn: uid=test1001,ou=minigeek.org,ou=mail,dc=minigeek,dc=orgchangetype: modifyreplace: userPassword userPassword: {SSHA}<supersecretsshapassword>modifying entry "uid=test1001,ou=minigeek.org,ou=mail,dc=minigeek,dc=org"
mail:~/ldap#
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There are a number of times when you want to be able to stop apt-get from updating a package, for example there’s a feature in the current kernel that you like, you’ve compiled asterisk against a certain set of headers or you’ve finally got compiz to work correctly. The trick to stopping apt-get from [...]

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There are many ways to do this, and many people have posted this, but I can never find the right syntax, so here it is for me.
server1:/etc/asterisk# ssh-keygen -t rsaGenerating public/private rsa key pair.Enter file in which to save the key (/root/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has [...]

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