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sorush-r
Asked: 2015-01-08 10:02:55 +0800 CST

`dnscrypt-proxy' package freeze at update, remove or reinstall

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I'm trying to upgrade packages, every time I ran sudo apt-get upgrade process freezes at setting up dnscrypt-proxy:

Processing triggers for desktop-file-utils (0.22-1ubuntu1) ...
Processing triggers for mime-support (3.54ubuntu1) ...
Processing triggers for ureadahead (0.100.0-16) ...
ureadahead will be reprofiled on next reboot
Setting up dnscrypt-proxy (1.4.0-0~oldconf2+trusty1) ...

Then I have to kill apt-get , rm /var/lib/dpkg/lock.

I also tried removing package.

apt

2 Answers

  1. I had same issue which resolved by following:

    1. sudo lsof -i which returned me opened ports like below:
    COMMAND    PID       USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
smbd       643       root   30u  IPv6  10183      0t0  TCP *:microsoft-ds (LISTEN)
smbd       643       root   31u  IPv6  10184      0t0  TCP *:netbios-ssn (LISTEN)
smbd       643       root   32u  IPv4  10185      0t0  TCP *:microsoft-ds (LISTEN)
smbd       643       root   33u  IPv4  10186      0t0  TCP *:netbios-ssn (LISTEN)
dnscrypt-  816   dnscrypt    8u  IPv4  10712      0t0  UDP localhost:mdns 
dnscrypt-  816   dnscrypt   10u  IPv4  10714      0t0  TCP localhost:mdns (LISTEN)
.
.
.

    Last two lines say dnscrypt is alive by PID#816

    1. sudo kill 816 killed it.
    2. sudo apt-get remove dnscrypt-proxy is now free to remove package with no frezze!
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  2. May be you should use the Ubuntu packages from my PPA as I usually provide the latest available version :

    https://launchpad.net/~anton+/+archive/ubuntu/dnscrypt

    Explanations on how to use it are in more recent webupd8 article :

    Encrypt DNS Traffic In Ubuntu With DNSCrypt [Ubuntu PPA]

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