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Displaying posts by Bradley M. Kuhn

November 26, 2015 by Bradley M. Kuhn

Do You Like What I Do For a Living?

I'm quite delighted with my career choice. As an undergraduate and even in graduate school, I still expected my career extend my earlier careers in the software industry: a mixture of software developer and sysadmin. I'd probably be a DevOps person now, had I stuck with that career path.

Instead, I picked the charity route: which (not financially, but work-satisfaction-wise) is like winning a lottery. There are very few charities related to software freedom, and frankly, if (like me) you believe in universal software freedom and reject proprietary software entirely, there are two charities for you: the Free Software Foundation, where I used to work, and Software Freedom Conservancy, where I work now.

But software freedom is not merely an ideology for me. I believe the ideology matters because I see the lives of developers and users are better when they have software freedom. I first got a taste of this IRL when I attended the earliest Perl conferences in the late 1990s. My friend James and I stayed in dive motels and even slept in a rental car one night to be able to attend. There was excitement in the Perl community (my first Free Software community). I was exhilarated to meet in person the people I'd seen only as god-like hackers posting on perl5-porters. James was so excited he asked me to take a picture of him jumping as high as he could with his fist in the air in front of the main conference banner. At the time, I complained; I was mortified and felt like a tourist taking that picture. But looking back, I remember that James and I felt that same excitement and just were expressing it differently.

I channeled that thrill into finding a way that my day job would focus on software freedom. As an activist since my teenage years, I concentrated specifically on how I could preserve, protect and promote this valuable culture and ideology in a manner that would assure the rights of developers and users to improve and share the software they write and use.

I've enjoyed the work; I attend more great conferences than I ever imagined I would, where now people occasionally walk up to me with the same kind of fanboy reverence that I reserved for Larry Wall, RMS and the heroes of my Free Software generation. I like my work. I've been careful, however, to avoid a sense of entitlement. Since I read it in 1991, I have never forgotten RMS' point in the GNU Manifesto: Most of us cannot manage to get any money for standing on the street and making faces. But we are not, as a result, condemned to spend our lives standing on the street making faces, and starving. We do something else., a point he continues in his regular speeches, by adding: I [could] just … give up those principles and start … writing proprietary software. I looked for another alternative, and there was an obvious one. I could leave the software field and do something else. Now I had no other special noteworthy skills, but I'm sure I could have become a waiter. Not at a fancy restaurant; they wouldn’t hire me; but I could be a waiter somewhere. And many programmers, they say to me, “the people who hire programmers demand [that I write proprietary software] and if I don’t do [it], I’ll starve”. It’s literally the word they use. Well, as a waiter, you’re not going to starve.

RMS' point is not merely to expose the false dilemma inherent in I have to program, even it's proprietary, because that's what companies pay me to do, but also to expose the sense of entitlement in assuming a fundamental right to do the work you want. This applies not just to software authorship (the work I originally trained for) but also the political activism and non-profit organizational work that I do now.

I've spent most of my career at charities because I believe deeply that I should take actions that advance the public good, and because I have a strategic vision for the best methods to advance software freedom. My strategic goals to advance software freedom include two basic tenets: (a) provide structure for Free Software projects in a charitable home (so that developers can focus on writing software, not administration, and so that the projects aren't unduly influenced by for-profit corporations) and (b) uphold and defend Free Software licensing, such as copyleft, to ensure software freedom.

I don't, however, arrogantly believe that these two priorities are inherently right. Strategic plans work toward a larger goal, and pursing success of a larger ideological mission requires open-mindedness regarding strategies. Nevertheless, any strategy, once decided, requires zealous pursuit. It's with this mindset that I teamed up with my colleague, Karen Sandler, to form Software Freedom Conservancy.

Conservancy, like most tiny charities, survives on the determination of its small management staff. Karen Sandler, Conservancy's Executive Director, and I have a unique professional collaboration. She and I share a commitment to promoting and defending moral principles in the context of software freedom, along with an unrelenting work ethic to match. I believe fundamentally that she and I have the skills, ability, and commitment to meet these two key strategic goals for software freedom.

Yet, I don't think we're entitled to do this work. And, herein there's another great feature of a charity. A charity not only serves the public good; the USA IRS also requires that a charity be funded primarily by donations from the public.

I like this feature for various reasons. Particularly, in the context of the fundraiser that Conservancy announced this week, I think about it terms of seeking a mandate from the public. As Conservancy poises to begin its tenth year, Karen and I as its leaders stand at a crossroads. For financial reasons of the organization's budget, we've been thrust to test this question: Does the public of Free Software users and developers actually want the work that we do?.

While I'm nervous that perhaps the answer is no, I'm nevertheless not afraid to ask the question. So, we've asked. We asked all of you to show us that you want our work to continue. We set two levels, matching the two strategic goals I mentioned. (The second is harder and more expensive to do than the first, so we've asked many more of you to support us if you want it.)

It's become difficult in recent years to launch a non-profit fundraiser (which have existed for generations) and not think of the relatively recent advent of gofundme, Kickstarter, and the like. These new systems provide a (sadly, usually proprietary software) platform for people to ask the public: Is my business idea and/or personal goal worth your money?. While I'm dubious about those sites, I do believe in democracy enough to build my career on a structure that requires an election (of sorts). Karen and I don't need you to go to the polls and cast your ballot, but we do ask you consider if what we do for a living at Conservancy is worth US$10 per month to you. If it is, I hope you'll “cast a vote” for Conservancy and become a Conservancy supporter now.

Posted by Bradley M. Kuhn on November 26, 2015

Tags: conservancy, GPL, supporter

October 14, 2015 by Bradley M. Kuhn

Join me for a Supporters Only Dinner in Raleigh, NC on Tuesday, October 20

Are you attending All Things Open next week? Or, are you local to the Raleigh-Durham area? If so, become a Supporter of Conservancy and email <> to RSVP for an exclusive dinner with me at Tír na nÓg at 218 S. Blount St. in Raleigh. This event is only open to Conservancy Supporters, so be sure to sign up as a Supporter first and then RSVP via email.

Once you RSVP, I'll reply by email and give you details.

If you're already a Supporter, I hope you'll not only RSVP, but also ask a friend to sign up too and join us!

Posted by Bradley M. Kuhn on October 14, 2015

Tags: supporter

September 29, 2015 by Bradley M. Kuhn

How Would Software Freedom Have Helped With VW?

Would software-related scandals, such as Volkswagen's use of proprietary software to lie to emissions inspectors, cease if software freedom were universal? Likely so, as I wrote last week. In a world where regulations mandate distribution of source code for all the software in all devices, and where no one ever cheats on that rule, VW would need means other than software to hide their treachery.

Universal software freedom is my lifelong goal, but I realized years ago that I won't live to see it. I suspect that generations of software users will need to repeatedly rediscover and face the harms of proprietary software before a groundswell of support demands universal software freedom. In the meantime, our community has invented semi-permanent strategies, such as copyleft, to maximize software freedom for users in our current mixed proprietary and Free Software world.

In the world we live in today, software freedom can impact the VW situation only if a few complex conditions are met. Let's consider the necessary hypothetical series of events, in today's real world, that would have been necessary for Open Source and Free Software to have stopped VW immediately.

First, VW would have created a combined or derivative work of software with a copylefted program. While many cars today contain Linux, which is copylefted, I am not aware of any cars that use Linux outside of the on-board entertainment and climate control systems. The VW software was not part of those systems, and VW engineers almost surely wrote the emissions testing mode code from scratch. Even if they included some non-copylefted Open Source or Free Software in it, those licenses don't require disclosure of any source code; VW's ability to conceal its bad actions with non-copylefted code is roughly identical to the situation of proprietary VW code before us. As a thought experiment, though, let's pretend, that VW based the nefarious code on Linux by writing a proprietary Linux module to trick the emissions testing systems.

In that case, VW would have violated the GPL. But that alone is far from enough to ensure anyone would catch VW. Indeed, GPL violations remain very prevalent, and only one organization, Conservancy, enforces the GPL for Linux. Conservancy has such limited enforcement resources (only three full-time people on staff, and enforcement is one of many of our programs), I suspect that years would pass before Conservancy had the resources to pursue the violation; Conservancy currently has hundreds of Linux GPL violations queued for action. Even once opened, most GPL violations take years to resolve. As an example, we are currently enforcing the GPL against one auto manufacturer who has Linux in their car. We've already spent hundreds of hours and the company to date continues to fail in their GPL compliance efforts. Admittedly, it's highly unlikely that particular violator has a GPL-violating Linux module specifically designed to circumvent automotive regulations. However, after enforcing the GPL in that case for more than two years, I still don't have enough data about their use of Linux to even know which proprietary Linux modules are present — let alone whether those modules are nefarious in any way other than as violating Linux's license.

Thus, in today's world, a “software freedom solution” to prevent the VW scandal must meet unbelievable preconditions: (a) VW would have to base all its software on copylefted Open Source and Free Software, and (b) an organization with a mission to enforce copyleft for the public good would require the resources to find the majority of GPL violators and ensure compliance in a timely fashion. This thought experiment quickly shows how much more work remains to advance and defend software freedom. While requirements of source code disclosure, such as those in copyleft licenses, are necessary to assure the benefits of software freedom, they cannot operate unless someone exercises the offers for source and looks at the details.

We live in a world where most of the population accepts proprietary software as legitimate. Even major trade associations in the Open Source community laud companies who make proprietary software, as long as they adopt and occasionally contribute to some Free Software too. Currently, it feels like software freedom is winning, because the overwhelming majority in the software industry believe Open Source and Free Software is useful and superior in some circumstances. Furthermore, while I appreciate the aspirational ideal of voluntary Open Source, I find in my work that so many companies, just as VW did, will cheat against important social good policies unless someone watches and regulates. Mere adoption of Open Source won't work alone; we only yield the valuable results of software freedom if software is copylefted and someone upholds that copyleft.

Indeed, just as it has been since the 1980s, very few people believe that software freedom is of fundamental importance for all software users. Scandals, like VW's use of proprietary software to hide other bad acts, might slowly change opinions, but one scandal is rarely enough to permanently change public opinion. I therefore encourage those who support software freedom to take this incident as inspiration for a stronger stance, and to prepare yourselves for the long haul of software freedom advocacy.

Posted by Bradley M. Kuhn on September 29, 2015

Tags: conservancy, GPL

September 15, 2015 by Bradley M. Kuhn

Exercising Software Freedom in the Global Email System

In this post, I discuss one example of how a choice for software freedom can cause many strange problems that others will dismiss. My goal here is to explain in gory detail how proprietary software biases in the computing world continue to grow, notwithstanding Open Source ballyhoo.

Two decades ago, nearly every company, organization, entity, and tech-minded individual ran their own email server. Generally speaking, even back then, nearly all the software for both MTAs and MUAs were Free Software0. MTA's are the mail transport agents — the complex software that moves email around from one Internet domain to another. MUAs are the mail user agents, sometimes called mail clients — the local programs with which users manipulate their own email.

I've run my own MTA since around 1993: initially with sendmail, then with exim for a while, and with Postfix since 1999 or so. Also, everywhere I've worked throughout my entire career since 1995, I've either been in charge of — or been the manager of the person in charge of — the MTA installation for the organization where I worked. In all cases, that MTA has always been Free Software, of course.

However, the world of email has changed drastically during that period. The most notable change in the email world is the influx of massive amounts of spam, which has been used as an excuse to implement another disturbing change. Slowly but surely, email service — both the MTA and the MUA — have been outsourced for most organizations. Specifically, either (a) organizations run proprietary software on their own computers to deal with email and/or (b) people pay a third-party to run proprietary and/or trade-secret software on their behalf to handle the email services. Email, generally speaking, isn't handled by Free Software all that much anymore.

This situation became acutely apparent to me this earlier this month when Conservancy moved its email server. I had plenty of warning that the move was needed1, and I'd set up a test site on the new server. We sent and received some of our email for months (mostly mailing list traffic) using that server configured with a different domain ( When the shut-off day came, I moved's email officially. All looked good: I had a current Debian, with a new version of Postfix and Dovecot on a speedier host, and with better spam protection settings in Postfix and better spam filtering with a newer version of SpamAssassin. All was going great, thanks to all those great Free Software projects — until the proprietary software vendors threw a spanner in our works.

For reasons that we'll never determine for sure2, the IPv4 number that our new hosting provide gave us was already listed on many spam blacklists. I won't debate the validity of various blacklists here, but the fact is, for nearly every public-facing, pure-blacklist-only service, delisting is straightforward, takes about 24 hours, and requires at most answering some basic questions about your domain name and answering a captcha-like challenge. These services, even though some are quite dubious, are not the center of my complaint.

The real peril comes from third-party email hosting companies. These companies have arbitrary, non-public blacklisting rules. More importantly, they are not merely blacklist maintainers, they are MTA (and in some cases, even MUA) providers who sell their proprietary and/or trade-secret hosted solutions as a package to customers. Years ago, the idea of giving up that much control of what happens to your own email would be considered unbelievable. Today, it's commonplace.

And herein lies the fact that is obvious to most software freedom advocates but indiscernible by most email users. As a Free Software user, with your own MTA on your own machine, your software only functions if everyone else respects your right to run that software yourself. Furthermore, if the people you want to email are fully removed from their hosting service, they won't realize nor understand that their hosting site might block your emails. These companies have their customers fully manipulated to oppose your software freedom. In other words, you can't appeal to those customers (the people you want to email), because you're likely the only person to ever raise this issue with them (i.e., unless they know you very well, they'll assume you're crazy). You're left begging to the provider, whom you have no business relationship with, to convince them that their customers want to hear from you. Your voice rings out indecipherable from the spammers who want the same permission to attack their customers.

The upshot for Conservancy? For days, Microsoft told all its customers that Conservancy is a spammer; Microsoft did it so subtly that the customers wouldn't even believe it if we told them. Specifically, every time I or one of my Conservancy colleagues emailed organizations using Microsoft's “Exchange Online”, “Office 365” or similar products to host email for their domain4, we got the following response:

Sep  2 23:26:26 pine postfix/smtp[31888]: 27CD6E12B: to=,[]:25, delay=5.6, delays=0.43/0/0.16/5, dsn=5.7.1, status=bounced (host[] said: 550 5.7.1 Service unavailable; Client host [] blocked using FBLW15; To request removal from this list please forward this message to (in reply to RCPT TO command))

Oh, you ask, did you forward your message to the specified address? Of course I did; right away! I got back an email that said:

Hello ,

Thank you for your delisting request SRXNUMBERSID. Your ticket was received on (Sep 01 2015 06:13 PM UTC) and will be responded to within 24 hours.

Once we passed the 24 hour mark with no response, I started looking around for more information. I also saw a suggestion online that calling is the only way to escalate one of those tickets, so I phoned 800-865-9408 and gave V-2JECOD my ticket number and she told that I could only raise these issues with the “Mail Flow Team”. She put me on hold for them, and told me that I was number 2 in the queue for them so it should be a few minutes. I waited on hold for just under six hours. I finally reached a helpful representative, who said the ticket was the lowest level of escalation available (he hinted that it would take weeks to resolve at that level, which is consistent with other comments about this problem I've seen online). The fellow on the phone agreed to escalate it to the highest priority available, and said within four hours, Conservancy should be delisted. Thus, ultimately, I did resolve these issues after about 72 hours. But, I'd spent about 15 hours all-told researching various blacklists, email hosting companies, and their procedures3, and that was after I'd already carefully configured our MTA and DNS to be very RFC-compliant (which is complicated and confusing, but absolutely essential to stay off these blacklists once you're off).

Admittedly, this sounds like a standard Kafkaesque experience with a large company that almost everyone in post-modern society has experienced. However, it's different in one key way: I had to convince Microsoft to allow me to communicate with their customers who are paying Microsoft for proprietary and/or trade-secret software and services, ostensibly to improve efficiency of their communications. Plus, since Microsoft, by the nature of their so-called spam blocking, doesn't inform their customers whom they've blocked, I and my colleagues would have just sounded crazy if we'd asked our contacts to call their provider instead. (I actually considered this, and realized that we might negatively impact relationships with professional contacts.)

These problems do reduce email software freedom by network effects. Most people rely on third-party proprietary email software from Google, Microsoft, Barracuda, or others. Therefore, most people, don't exercise any software freedom regarding email services. Since exercising software freedom for email slowly becomes a rarer and rarer (rather than norm it once was), society slowly but surely pegs those who do exercise software freedom as “random crazy people”.

There are a few companies who are seeking to do email hosting in a way that respects your software freedom. The real test of such companies is if someone technically minded can get the same software configured on their own systems, and have it work the same way. Yet, in most cases, you go to one of these companies' Github pages and find a bunch of stuff pushed public, but limited information on how to configure it so that it functions the same way the hosted service does. RMS wrote years ago that Free Software cannot properly succeed without Free Documentation, and in many of these hosting cases: the hosting company is using fully upstreamed Free Software, but has configured the software in a way that is difficult to stumble upon by oneself. (For that reason, I'm committing to writing up tutorials on how Conservancy configured our mail server, so at least I'll be part of the solution instead of part of the problem.)

BTW, as I dealt with all this, I couldn't help but think of John Gilmore's activism efforts regarding open mail relays. While I don't agree with all of John's positions on this, his fundamental position is right: we must oppose companies who think they know better how we should configure our email servers (or on which IP numbers we should run those servers). I'd add a corollary that there's a serious threat to software freedom, at least with regard to email software, if we continue to allow such top-down control of the once beautifully decentralized email system.

The future of software freedom depends on issues like this. Imagine someone who has just learned that they can run their own email server, or bought some Free Software-based plug computing system that purports to be a “home cloud” service with email. There's virtually no chance that such users would bother to figure all this out. They'd see their email blocked, declare the “home cloud” solution useless, and would just get a,, or some other third-party email account. Thus, I predict that software freedom that we once had, for our MTAs and MUAs, will eventually evaporate for everyone except those tiny few who invest the time to understand these complexities and fight the for-profit corporate power that curtails software freedom. Furthermore, that struggle becomes Sisyphean as our numbers dwindle.

Email is the oldest software-centric communication system on the planet. The global email system serves as a canary in the coalmine regarding software freedom and network service freedom issues. Frighteningly, software now controls most of the global communications systems. How long will it be before mobile network providers refuse to terminate PSTN calls or SMS's sent from devices running modified Android firmwares like Replicant? Perhaps those providers, like large email providers, will argue that preventing robocalls (the telephone equivalent of SPAM) necessitates such blocking. Such network effects place so many dystopias on software freedom's horizon.

I don't deny that every day, there is more Free Software existing in the world than has ever existed before — the P.T. Barnum's of Open Source have that part right. The part they leave out is that, each day, their corporate backers make it a little more difficult to complete mundane tasks using only Free Software. Open Source wins the battle while software freedom loses the war.

0Yes, I'm intimately aware that Elm's license was non-free, and that the software freedom of PINE's license was in question. That's slightly relevant here but mostly orthogonal to this point, because Free Software MUAs were still very common then, and there were projects to actively rewrite the ones whose software freedom was in question

1For the last five years, one of Conservancy's Director Emeriti, Loïc Dachary, has donated an extensive amount of personal time and in-kind donations by providing Cloud server for Conservancy to host its three key servers, including the email server. The burden of maintaining this for us became too time consuming (very reasonably), and Loïc's asked us to find another provider. I want, BTW, to thank Loïc his for years of volunteer work maintaining infrastructure for us; he provided this service for much longer than we could have hoped! Loïc also gave us plenty of warning that we'd need to move. None of these problems are his fault in the least!

2The obvious supposition is that, because IPv4 numbers are so scarce, this particular IP number was likely used previously by a spammer who was shut down.

3I of course didn't count the time time on phone hold, as I was able to do other work while waiting, but less efficiently because the hold music was very distracting.

4If you want to see if someone's domain is a Microsoft customer, see if the MX record for their domain (say, points to

Posted by Bradley M. Kuhn on September 15, 2015

Tags: conservancy

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