44net

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3198 discussions

Re: [44net] 44net cool toys - not
by Steve Wright 19 Mar '14

19 Mar '14

Well, we suck don't we. I got issued my first 44net IP nearly 30 years ago, and now back after a "break", I find we don't have much. What needs to change? Why isn't there Ubiquiti all over them mountain ranges? There must be more interesting things to do than fix the portal, track down one stray packet per hour, or checkthat we don't dDOS the internet..gasp... I'm sorry, but we suck. Steve ZL1BHD

4 3

NTP 'monlist' DDOS attacks
by Brian Kantor 17 Mar '14

17 Mar '14

Folks, if you're running NTPD (Network Time Protocol daemon) on your AMPRNet hosts or routers, please be sure that the MONLIST command is disabled. If it is not, your device can be used to attack other systems on the Internet. You can test whether your NTP is thus misconfigured with the command /usr/sbin/ntpdc -n -c monlist If MONLIST is enabled, you will see a response including any IP addresses that have made use of your NTP services. Recommended Action: NTPD versions prior to 4.2.7 are vulnerable by default; the simplest recommended course of action is to upgrade all versions of ntpd that are publically accessible to 4.2.7 or greater. In cases where upgrading is not possible, disabling the monitor functionality can be accomplished via the instructions below. Add the “noquery” directive to the “restrict default” line in the system’s ntp.conf, as shown below: restrict default kod nomodify notrap nopeer noquery restrict -6 default kod nomodify notrap nopeer noquery The links below describe the activity in more detail as well as possible solutions. US CERT Notifiacation: https://www.us-cert.gov/ncas/alerts/TA14-013A CERT.ORG Message: http://www.kb.cert.org/vuls/id/348126 Thank you - Brian

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Portal security
by Chris 10 Mar '14

10 Mar '14

Over the past few weeks, the portal has been subject to several brute force attacks on random usernames. In the past few days some accounts have been compromised because they used weak passwords. The attackers didn't do anything with any of the compromised accounts, it was most likely a script collecting valid usernames & passwords for later use. As a result I have tightened up security and some accounts will tell you that you need to verify your email address when you try to login. Please follow the link to have the verification email sent to you, then follow the instructions in the email when you receive it. Due to the enhanced security you will notice a CAPTCHA appears if you get your password wrong a few times, if you continually get your password wrong, the response time for the login process will get longer - this is intentional. It would help greatly if you could use a strong password, one that is at least 12 characters in length and contains a mixture of letters, numbers and punctuation characters, no "real" words and no "numbers instead of letters", e.g. "numb3r". Thanks, Chris

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Portal password / login failure
by Willie Hein WJ3G 06 Mar '14

06 Mar '14

Is it just me, or is there a problem logging in to the portal? tia Willie, WJ3G

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44Net Digest, Vol 3, Issue 44
by Gabriel Medinas 27 Feb '14

27 Feb '14

Hello Rob, thanks for your information, I changed to 44.0.0.1 from 169.228.66.251, but dont see here any rip broadcast from this IP, i waiting if arrive in any moment. 73 de Gabriel. YV5KXE YV AmpNet Coordinator 44net-request at hamradio.ucsd.edu wrote: > Subject: > [44net] RIP UDP question > From: > Gabriel Medinas <gmedinas at gmail.com> > Date: > 02/26/2014 05:48 PM > > To: > 44net at hamradio.ucsd.edu > > > Hello all, > > I want test to receive the RIP2 broadcast in my JNOS but dont work: > > Trace jnos monitor: > > (tun0) 169.228.66.251->192.168.2.110 UDP Don't use that version. Use the one that is from 44.0.0.1 -> 224.0.0.9 instead. (there are two RIP broadcasts and some time ago Brian already considered to stop the one from 169.228.66.251 to the public IP adress. This one is sent to a different portnumber so your jnos probably does not recognize it) Rob

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Re: [44net] 44Net Digest, Vol 3, Issue 44
by Rob Janssen 26 Feb '14

26 Feb '14

44net-request(a)hamradio.ucsd.edu wrote: > Subject: > [44net] RIP UDP question > From: > Gabriel Medinas <gmedinas(a)gmail.com> > Date: > 02/26/2014 05:48 PM > > To: > 44net(a)hamradio.ucsd.edu > > > Hello all, > > I want test to receive the RIP2 broadcast in my JNOS but dont work: > > Trace jnos monitor: > > (tun0) 169.228.66.251->192.168.2.110 UDP Don't use that version. Use the one that is from 44.0.0.1 -> 224.0.0.9 instead. (there are two RIP broadcasts and some time ago Brian already considered to stop the one from 169.228.66.251 to the public IP adress. This one is sent to a different portnumber so your jnos probably does not recognize it) Rob

1 0

RIP UDP question
by Gabriel Medinas 26 Feb '14

26 Feb '14

Hello all, I want test to receive the RIP2 broadcast in my JNOS but dont work: Trace jnos monitor: (tun0) 169.228.66.251->192.168.2.110 UDP 0000 ........pLaInTeXtpAsSwD.....,.......[yZ.........,.........Y..... 0040 ....,.......E..>........,.......Q.v>........,I@.....2.D>........ 0080 ,.@.....[yZ.........,.......[yZ.........,I......2.D>........,... 00c0 ....W...........,...................,........K..........,....... 0100 ............,........&..........,^..................,.......v... 0140 ........,........K..........,........K..........,.......yc...... 0180 ....,........K..........,.......^e0.........,........K.......... 01c0 ,........K...... (tun0) 192.168.2.110->169.228.66.251 ICMP UnreachablePort Returned 169.228.66.251->192.168.2.110 UDP 192.168.2.110 is my JNOS IP in LAN (also 44.152.0.60) 169.228.66.251 (amprnetgw-ucsd) The jnos return a ICMP UnreachablePort, have check firewall, ip forwading in opensuse 13.1 linux, router and in my autoexec.nos: ip upstairs 224.0.0.9 rip ttl 43200 start rip #rip accept 44.0.0.1 rip accept 169.228.66.251 rip trace 9 rip.log My question, why my jnos said unreachablePort? Thanks. Gabriel YV5KXE

1 0

Re: [44net] Suggestion?
by kb9mwr＠gmail.com 24 Feb '14

24 Feb '14

Thanks Chris. Now if there is a problem originating from one of the gateways we know who to get a hold of. It may also be desirable if their callsign had a link to method of contact (email) that is on file for them. But I heard a whois function is in the works, and I assume that will have something like that. Steve

4 3

anyone seeing these?
by Brian 23 Feb '14

23 Feb '14

I've been getting absolutely bombarded with dns query frames most of which come from commercial IPs (that are now blocked) however I'm seeing some from what appears to be 44/8, but I suspect most of these are spoofed. There's always the chance someone's been compromised. An example from wireshark: 72 13.058158 44.96.84.78 44.88.0.9 DNS Standard query A oitutrxutxx.www.luse7.com I know this IP is not configured so it must be spoofed (aka: no DNS) and it doesn't appear to be alive, nor is this the only one from 44/8. 140 35.327781 44.180.172.99 44.88.0.9 DNS Standard query A ttx.www.luse8.com 595 181.341697 44.219.111.186 44.88.0.9 DNS Standard query A m.www.luse9.com I'm sure this is a DNS worm of sorts but it was attacking my MFNOS node (which does not even have a dns server compiled in it) at the rate of 500,000 frames a minute. While harmless to such, it's still bandwidth used for nothing. Has anyone seen these sort of junk dns requests before? -- 73 de Brian Rogers - N1URO email: <n1uro(a)n1uro.ampr.org> Web: http://www.n1uro.net/ Ampr1: http://n1uro.ampr.org/ Ampr2: http://nos.n1uro.ampr.org Linux Amateur Radio Services axMail-Fax & URONode AmprNet coordinator for: Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, Pennsylvania, Rhode Island, and Vermont.

2 1

Suggestion?
by kb9mwr＠gmail.com 23 Feb '14

23 Feb '14

On the gateways list page or under the details (at: https://portal.ampr.org/gateways_list.php) could another column be added to show the associated call sign of the person who maintains that entry? Right now there really doesn't seem to be a way to tell.

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