Noisebridge - User contributions [en]

Noisecode

2012-03-08T22:10:34Z

Dr jesus:

Noisecode is a bot in #noisebridge which knows all about python. Fun things to ask it to do:

<pre>
noisecode: eval __import__('urllib2').urlopen('http://www.slashdot.org/').info()['Server']
noisecode: eval self.ircobj.connections[0].get_nickname()
noisecode: eval file('/etc/passwd').readlines()
noisecode: eval __import__('smtplib').SMTP('172.30.0.3').sendmail('noisecodebot@gmail.com', 'noisebridge-discuss@lists.noisebridge.net', 'Noisecode online.')
noisecode: eval self.say_public('hi')
noisecode: eval reduce(lambda (say,s),i,w=110: [say, [[w>>(s[i-1]*4+s[i]*2+s[(i+1)%len(s)])&1 for i in range(len(s))], say("".join(c and "*" or " " for c in s)), __import__('time').sleep(1)][0]], range(25), [self.say_public, [0] * 70 + [ 1, 0]] ) and "ok 25 is enough"
noisecode: eval (lambda c,self=self: map(lambda m,self=self: self.say_public(m) or __import__("time").sleep(1) or c, __import__("re").compile("\w{2,}(?:\w+ ){1,5}(?:is)(?:\w+){1,5}\w{3,}",__import__("re").I).findall(__import__("urllib2").urlopen(__import__("urllib2").Request("http://www.google.com/search?q=%s" % c,headers={"User-agent":"Mozilla/5.0"})).read())[:5]))(__import__("random").choice(self.channels['#noisebridge'].users()))[0]
</pre>

Noisec is another bot in #noisebridge which knows all about C. Fun things to ask it to do:

<pre>
noisec: eval char * p; int i; p=&main; for(i=0;i<20;i++) { printf("%.02hhX ", p[i]);
noisec: eval char*f="eval char*f=%c%s%c;printf(f,34,f,34,10);%c";printf(f,34,f,34,10);
noisec: eval int i; __asm("movl $0xdeadbeef, %0": "m"(i)); printf("i=0x%x", i);
</pre>

Noisesql is yet another bot in #noisebridge which knows all about MySQL. It's used so often that it also responds to anything prefixed with ".sql". It has a database of dong urls (dongs), a database of gong urls (gongs), and a database with a copy of the 2009 California legislature's output and the state codes (capublic). Fun things to ask it to do:

<pre>
noisesql: eval SELECT REPLACE(@prog := 'SELECT REPLACE(@prog := \'lolz\', CONCAT(\'lo\', \'lz\'), REPLACE(REPLACE(@prog, \'\\\\\', \'\\\\\\\\\'), \'\\\'\', \'\\\\\\\'\'));', CONCAT('lo', 'lz'), REPLACE(REPLACE(@prog, '\\', '\\\\'), '\'', '\\\''));
noisesql: eval select cos(0)
noisesql: eval select aes_encrypt('hocus', 'pocus')
.sql select * from gongs order by rand() limit 1
</pre>

Noiseelisp is, you guessed it, yet again another bot in #noisebridge which knows all about emacs lisp. Fun things to ask it to do:

<pre>
noiseelisp: (message "1+1=%d" (+ 1 1))
</pre>

Noisejs is yet another bot in #noisebridge which knows all about javascript. Fun things to ask it to do:

<pre>
noisejs: eval function f(x) { if(x>2) { return x*f(x-1); } else { return x; } }; print(f(5));
</pre>

There used to be a bot that looked for certain keywords and would respond with "appropriate" images, but it was kicked and the group arguing for the bot didn't exercise their do-ocratic rights and reinstate it.

Things people have tried to break the bots so far:

* Flooding. The bots are ratelimited and rejoin if they are kicked by the server.
* Multiline output, like "Hello, world\nquit\n". The bots only reply with the first line of the output.
* Infinite loops. The bots use setrlimit and watchdog threads to cap the maximum amount of execution time per eval request.
* Modifying noisecode's internal objects using setattr/getattr.
* Calling eval() in noisecode via InteractiveConsole and InteractiveInterpreter.
* feta called sleep() in noisesql to hang it:
< feta> .sql select sleep(999999999)
* davr called sleep(), but with more snazz:
< davr> .sql set @s=concat('select sle','ep(99999)');prepare stmt1 from @s; execute stmt1;
* feta called benchmark and md5 to hang it:
< feta> .sql select benchmark(99999999999999,md5(1))

Noisecode

2012-03-08T19:31:22Z

Dr jesus:

2011-04-08T23:04:50Z

Dr jesus: /* Address Assignment */

= The (desired, wished, dreamed, hoped for) Rules =

# We have a wiki with which you can keep a record of changes. You should consider using it to keep a record of your changes.
# Unlabeled cables are fair game to be unplugged. There is a label maker available to prevent this. Remember that you may want to label both sides in some cases.
# Users monitor [mailto:noisebridge-discuss@lists.noisebridge.net noisebridge-discuss] and #noisebridge on IRC. Please notify both places if you anticipate an outage, and monitor both places to answer questions if you are aware of an outage.
# It is excellent to fix things, but only if you can't find the original owner first.
# Before making a change, make sure it worked in the first place and back up the config. After making a change, make sure it still works. Keep that backup around, you might need it someday. You might also want to implement the test as a shell script, since that's the first step towards adding the test to the regression testing system.

= Baseline Management Checklist =

== Address Assignment ==

For static addresses:

# Update the [[Network]] page on the wiki to signal your intent to claim the address.
# Update /etc/hosts on r00ter.noise. and gorilla.noise with the name of the host. Use "rw" to enable write access to the flash disk and "ro" to save changes when you're done.
# Restart dhcpd on r00ter.
# Set the address and netmask (255.255.252.0) on the target device.
# Set the domain name on the device to noise.
# Set the DNS server to 172.30.0.1 on the device.

== Cisco Switch Port Configuration ==

Hosts connected to a Cisco switch should have at least spanning-tree portfast and a description entry set:
switchX# conf t
switchX(config)# int FastEthernet0/x
switchX(config-if)# description HostnameGoesHere
switchX(config-if)# spanning-tree portfast
switchX(config-if)# exit
switchX(config)# exit
switchX# write memory

== Dell Powerconnect Port Configuration ==

Hosts connected to a Dell Powerconnect switch should have at least spanning-tree portfast and a description entry set:
switchX# conf
switchX(config)# interface ethernet 1/eX
switchX(config-if)# description "Hostname goes here, quotes are required for more than one word descriptions"
switchX(config-if)# spanning-tree portfast
switchX(config-if)# exit
switchX(config)# exit
switchX# copy running-config startup-config

== Physical Wired Hosts ==

# Update the [[Network]] page and add an entry in the switch port table for the host.
# Label the host. The label maker is in the front desk.
# Label BOTH ENDS of the cable used to connect the host to the switch.
# Log into the switch and configure the switch port. See the directions elsewhere on this page for the switch model. If the switch is unmanaged, ignore this step.
# If the host is important, add an entry to stallion:/etc/smokeping/config.d/Targets to have it be monitored.

== General Management Stuff ==
* SNMP v2c, community name "noise" for readonly. v1 works too.
* SNMP traps go to pony using the same community name.
* NTP to <tt>clock.isc.org</tt> or a similarly close server.
* Syslog to pony.
* Set the timezone and turn on automatic summer time adjustment.
* Save a copy of the manual somewhere. It might be handy to have if you want to look something up while the network is down.
* Save a copy of the initial configuration somewhere.

== Cisco Version ==

Cut and paste:

configure terminal
ip domain-name noise
ip domain-lookup
ip name-server 172.30.0.1
snmp-server community noise
snmp-server host pony trap version 2c noise
ntp server clock.isc.org
logging 172.30.0.30
aaa new-model
aaa authentication login default local
aaa authentication enable default none
clock timezone PST -8
clock summer-time PDT recurring

2011-04-01T23:18:39Z

Dr jesus:

2011-02-20T08:31:14Z

Dr jesus: Created page with '[citation needed]'

[citation needed]