Category: networks and networking

password theft

I have mentioned odd postings to bugtraq before. Today, one “gsuberland” added to the canon with a gem about the Netgear WGR614 wireless router. He says in his post that he has been “reverse engineering” this router. Now for most bugtraq posters (and readers) this would mean that he has been disassembling the firmware. But …

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Permanent link to this article: https://baldric.net/2012/12/14/password-theft/

using openvpn to bypass NAT firewalls

OpenVPN is a free, open source, general purpose VPN tool which allows users to build secure tunnels through insecure networks such as the internet. It is the ideal solution to a wide range of secure tunnelling requirements, but it is not always immediately obvious how it should be deployed in some circumstances. Recently, a correspondent …

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Permanent link to this article: https://baldric.net/2012/10/27/using-openvpn-to-bypass-nat-firewalls/

a positive response

Whenever my logs show evidence of unwanted behaviour I check what has happened and, if I decide there is obviously hostile activity coming from a particular address I will usually bang off an email to the abuse contact for the netblock in question. Most times I never hear a thing back though I occasionally get …

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Permanent link to this article: https://baldric.net/2012/10/05/a-positive-response/

you are at 2001:db8::ff00:42:8329.

Verity Stob is having trouble getting a new IP address. What with the IPV4 address exhaustion problem, it would seem that the only alternative is IPV6. This is causing Verity some grief. Stress brings out my unoriginal streak. I said: ‘Where am I?’ ‘You are at 2001:db8::ff00:42:8329.’ ‘What?’ ‘Your new IP address at 2001:db8::ff00:42:8329.’ He …

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Permanent link to this article: https://baldric.net/2012/08/21/you-are-at-2001db8ff00428329/

debian on a DNS-320

Back in 2009 I bought, on impulse, a D-Link DNS-313 thinking it was sufficiently similar to the 323 to enable me to install debian with some ease. As I noted at the time, however, I’d made a slight mistake and then had to settle for a compromise installation from a tarball rather than a full …

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Permanent link to this article: https://baldric.net/2012/08/21/debian-on-a-dns-320/

tor abuse

I have been running at least one tor exit node for about three years now. Over that period I have occasionally had to move provider following one or more abuse reports. Most ISPs like the quiet life, and you can’t really blame them for not wanting the hassle of dealing with complaints from other ISPs …

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Permanent link to this article: https://baldric.net/2012/05/22/tor-abuse/

now switch it back on

Bugtraq can be an interesting list. Back in June 2008 I noted that one Craig Wright had posted an advisory about a vulnerability in an Oral B toothbrush. Well, just over a week ago a chap called Gabriel Menezes Nunes posted a proof of concept remote denial of service attack on a Sony Bravia television …

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Permanent link to this article: https://baldric.net/2012/04/18/now-switch-it-back-on/

android mail client is broken

In January of this year I wrote about t-mobile’s apparent policy of actively looking for and blocking any TLS-secured SMTP sessions over their network. At the time I believed this to be a cockup rather than a deliberate policy. I still prefer to believe that, but the episode left a rather sour taste in my …

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Permanent link to this article: https://baldric.net/2012/03/24/android-mail-client-is-broken/

unplugged

A few days ago my sheevaplug died. Beyond the obvious lack of response either over the network or through the USB serial connection, the symptoms (single green LED rather than blue and green LED lit, ethernet LED light steady rather than flashing) were all consistent with a blown PSU. This problem is well known and …

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Permanent link to this article: https://baldric.net/2012/03/14/unplugged-2/

and darkness shall be upon the face of the net

image of the wikipedia blackout page

Today, 18 January 2012, parts of the ‘net went deliberately dark in combined opposition to the SOPA (A Bill to:“promote prosperity, creativity, entrepreneurship, and innovation by combating the theft of U.S. property, and for other purposes.” I love the “other purposes” bit.) and PIPA bills currently being considered by the US legislative machinery. These two …

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Permanent link to this article: https://baldric.net/2012/01/18/and-darkness-shall-be-upon-the-face-of-the-net/

t-mobile resets its policy?

As I have mentioned in other posts here, I run my own mail server on one of my VMs. I do this for a variety of reasons, but the main one is that I like to control my own network destiny. Back in October last year I noticed an interesting change in my mail experience …

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Permanent link to this article: https://baldric.net/2012/01/12/t-mobile-resets-its-policy/

tails in a spin

When I first tested running a tails mirror on one of my VMs, the traffic level reported by vnstat ran at around 20-30 GiB per day. I figured I could live with that because it meant that my total monthly traffic would be unlikely to exceed my monthly 1TB allowance. However, when I checked the …

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Permanent link to this article: https://baldric.net/2012/01/12/tails-in-a-spin/

tunnelling X over ssh

OK, yes, I know there are probably already a gazillion web pages on the ‘net explaining exactly how to do this, but I got caught out by a silly gotcha when I tried to do this a couple of days ago, so I thought I’d post a note. Firstly, X is not exactly a secure …

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Permanent link to this article: https://baldric.net/2011/12/19/tunnelling-x-over-ssh/

tp-link respond

A couple of weeks ago, I wrote about the problems I had with a TP-Link IP camera. Today I received a comment on that post from a guy called Luke in the TP-Link support team. In that response he apologises for the difficulties I had and promises to investigate further. His response deserves as wide …

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Permanent link to this article: https://baldric.net/2011/11/30/tp-link-respond/

do not buy one of these

image of TP-Link IP camera

  Standalone IP cameras have come down in price quite remarkably over the past few years. It is now perfectly possible to get a camera for between £50.00 and £75.00, and this makes them attractive for anyone wanting to set up simple “home surveillance” systems. I bought one recently just to see what I could …

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Permanent link to this article: https://baldric.net/2011/11/16/do-not-buy-one-of-these/

no police here

screenshot of www.police.uk website

The UK Home Office launched a new crime statistics website today at www.police.uk. The site is supposed to show “Local crime and policing information for England and Wales”. I’m not entirely convinced of the merit of the site in the first place (and can see all sorts of potential objections arising in some of the …

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Permanent link to this article: https://baldric.net/2011/02/01/no-police-here/