no incoming connections

 Ubuntu 12.04
Recent changes due to Update Manager have determined problems within the network status.
As wifi connection is OK and firefox works quite fine, it seems there are some problems related to
opening certains ports.
I listed below these updates. My concern is related to packages as iptables or openssl,
as a nonexpert guess.

Thanks in advance

2013-03-21 11:47:20 status installed ureadahead 0.100.0-12
2013-03-21 11:47:27 status installed man-db 2.6.1-2ubuntu1
2013-03-21 11:47:29 status installed doc-base 0.10.3
2013-03-21 11:47:30 status installed libudev0 175-0ubuntu9.3
2013-03-21 11:47:31 status installed libgudev-1.0-0 1:175-0ubuntu9.3
2013-03-21 11:47:34 status installed udev 175-0ubuntu9.3
2013-03-21 11:47:35 status installed iptables 1.4.12-1ubuntu5
2013-03-21 11:47:35 status installed gir1.2-gudev-1.0 175-0ubuntu9.3
2013-03-21 11:47:36 status installed libc-bin 2.15-0ubuntu10.3
2013-03-21 11:48:56 status installed initramfs-tools 0.99ubuntu13.1

2013-03-22 05:28:48 status installed man-db 2.6.1-2ubuntu1
2013-03-22 05:28:50 status installed perl-doc 5.14.2-6ubuntu2.3
2013-03-22 16:59:50 status installed bamfdaemon 0.2.126-0ubuntu1
2013-03-22 16:59:50 status installed desktop-file-utils 0.20-0ubuntu3
2013-03-22 16:59:50 status installed gnome-menus 3.4.0-0ubuntu1
2013-03-22 16:59:52 status installed libkonq5-templates 4:4.8.5-0ubuntu0.1
2013-03-22 16:59:52 status installed libkonq-common 4:4.8.5-0ubuntu0.1
2013-03-22 16:59:53 status installed libkonq5abi1 4:4.8.5-0ubuntu0.1
2013-03-22 16:59:53 status installed dolphin 4:4.8.5-0ubuntu0.1
2013-03-22 16:59:55 status installed libc-bin 2.15-0ubuntu10.3

2013-03-25 10:45:16 status installed bamfdaemon 0.2.126-0ubuntu1
2013-03-25 10:45:18 status installed desktop-file-utils 0.20-0ubuntu3
2013-03-25 10:45:18 status installed gnome-menus 3.4.0-0ubuntu1
2013-03-25 10:45:24 status installed man-db 2.6.1-2ubuntu1
2013-03-25 10:45:26 status installed libaccountsservice0 0.6.15-2ubuntu9.5
2013-03-25 10:45:26 status installed accountsservice 0.6.15-2ubuntu9.5
2013-03-25 10:45:31 status installed language-selector-common 0.79.2
2013-03-25 10:45:31 status installed language-selector-gnome 0.79.2
2013-03-25 10:45:32 status installed gir1.2-accountsservice-1.0 0.6.15-2ubuntu9.5
2013-03-25 10:45:32 status installed language-selector 0.79.2
2013-03-25 10:45:33 status installed libc-bin 2.15-0ubuntu10.3

2013-03-26 11:01:11 status installed man-db 2.6.1-2ubuntu1
2013-03-26 11:01:14 status installed libssl1.0.0 1.0.1-4ubuntu5.8
2013-03-26 11:01:15 status installed libc-bin 2.15-0ubuntu10.3
2013-03-26 11:01:33 status installed man-db 2.6.1-2ubuntu1
2013-03-26 11:01:49 status installed hicolor-icon-theme 0.12-1ubuntu2
2013-03-26 11:01:49 status installed ureadahead 0.100.0-12
2013-03-26 11:01:51 status installed libssl-doc 1.0.1-4ubuntu5.8
2013-03-26 11:01:51 status installed libssl-dev 1.0.1-4ubuntu5.8
2013-03-26 11:01:51 status installed libgoa-1.0-common 3.4.0-0ubuntu1.1
2013-03-26 11:01:52 status installed libgoa-1.0-0 3.4.0-0ubuntu1.1
2013-03-26 11:01:52 status installed gnome-online-accounts 3.4.0-0ubuntu1.1
2013-03-26 11:01:56 status installed rsyslog 5.8.6-1ubuntu8.1
2013-03-26 11:01:57 status installed openssl 1.0.1-4ubuntu5.8
2013-03-26 11:01:57 status installed libneon27-gnutls 0.29.6-1ubuntu1
2013-03-26 11:01:58 status installed libc-bin 2.15-0ubuntu10.3