So remember that you might have some non-tor traffic due to other browsers, email, IRC, instant messenger, video conferencing, games, bittorrent, bitcoin, remote desktop, other machines NATing through your box, and all other network software.Įven though your ISP cannot see exactly what you do while using tor, they can still see that you USE tor, and WHEN and HOW MUCH you download and upload via tor. However, this only works for programs which were configured to use tor and do not leak DNS requests. These people can no longer easily see which other hosts you contact. Let's have a brief look at how our privacy has changed now that we have tor up and running.
Unfortunately, it is a common misconception that it makes you always 100% anonymous. Tor is a great tool for enhancing your privacy in many situations. The more you change in your browser, the more you'll stand out from the crowd. Change the security slider if you want, but you should not start adding "privacy" addons. Some mozilla addons also may keep you privacy Request Policy, Privacy Badger and others.įor web browsing, you should just get Tor Browser from. For hide HTML headers use Random Agent Spoofer and/or net-proxy/privoxy. To hide more information, you can try disable: Javascript, Flash, Java, ActiveX, WebRTC. There is a lots of site in Internet for testing your anonymity. Unfortunately currently (app-crypt/gnupg-2.2.10) there is no option for specifying Tor port, so the standard SOCKSPort 9050 is necessary in etc/tor/torrc. Root # gpg -v -homedir /var/lib/gentoo/gkeys/keyrings/gentoo/release -refresh-keys
To turn it on, first compile Tor with the secomp USE flag: It may give more protection of your system if Tor is compromised. Instead of country codes you can use IPv4, IPv6 addresses and subnets. Directive NodeFamily can be used multiple times.ĮntryNodes and ExitNodes can be used to select spacial nodes for entering end exit from Tor network respectively. #ExcludeNodes all that nodes as "single administration" by Five Eyes. So if you want to be sure your GPG client and your instant messenger don't put streams on the same circuit, the easiest thing to do is add the following to your torrc and point them at different SocksPorts.įILE /etc/tor/torrc torrc configuration StrictNodes 1 To see the most up-to-date list of stream isolation flags, see `man tor`. Note that some are enabled by default already and that more isolation flags does not necessarily mean more security/anonymity/privacy. If you want to do stream isolation on a single *Port option, you can add one or more of the following isolation flags to *Port options: IsolateClientAddr, IsolateSOCKSAuth, IsolateClientProtocol, IsolateDestPort, IsolateDestAddr. Stream isolation provides an easy way to separate different Tor circuits and make different applications use isolated streams.īy default, multiple *Port lines (SocksPort, DNSPort, TransPort) will never share circuits. In all cases an exit node can make correlation between separate activities. You might not want to mix GPG traffic with the traffic of a web browser or to mix irssi circuits with the circuits of a bitcoin wallet. Root # iptables -t nat -A OUTPUT -p TCP -m owner ! -uid-owner tor -j DNAT -to-destination 127.0.0.1:9040 To enable the built-in DNS resolver, add the following lines to the /etc/tor/torrc file and restart the daemon: A downside is that it is only able to resolve DNS queries for A-records. Tor can work like a regular DNS server, and resolve the domain via the Tor network. In order to check how this works, one needs to give an application an IP address instead of a domain name, retrieved by running the tor-resolve command for example.
Oct 14 14:44:44 localhost Tor: Your application (using socks5 to port 80) is giving Tor only an IP address.Īpplications that do DNS resolves themselves may leak information. Below is an example of a message for a misconfigured application (or for a webpage that stores links in form of IP addresses): If an application is configured correctly, nothing shows in the logs. !!internal use only!! Security Enhanced Linux support, this must be set by the selinux profile or breakage will occurĮnable tor's relay module so it can operate as a relay/bridge/authorityĮnable use of systemd-specific libraries and features like socket activation or session trackingĮnable dependencies and/or preparations necessary to run tests (usually controlled by FEATURES=test but can be toggled independently)Ĭompile tor with hardening on vanilla compilers/linkers Use app-crypt/libscrypt for the scrypt algorithmĮnable seccomp (secure computing mode) to perform system call filtering at runtime to increase security of programs Support for LZMA (de)compression algorithm It is recommended to enable per package instead of globally Use Linux capabilities library to control privilegeĪdd extra documentation (API, Javadoc, etc).
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