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Visualizzazione post con etichetta networking. Mostra tutti i post

domenica 24 febbraio 2008

Excuses .. quando il sysAdmin ha un attimo di scazzo


ho ritrovato questo file dopo anni :) , è molto lungo ma vale proprio la pena leggerlo.

Prima di continuare la lettura, un paio le ho provate con i lusers e che dire .. ci hanno creduto , consiglio di usare la scusa delle macchie solari e del riscaldamento globale sono ottime quando c'è qualcuno che chiama per dire "internet si è rotto" :)


clock speed
solar flares
electromagnetic radiation from satellite debris
static from nylon underwear
static from plastic slide rules
global warming
poor power conditioning
static buildup
doppler effect
hardware stress fractures
magnetic interference from money/credit cards
dry joints on cable plug
we're waiting for [the phone company] to fix that line
sounds like a Windows problem, try calling Microsoft support
temporary routing anomaly
somebody was calculating pi on the server
fat electrons in the lines
excess surge protection
floating point processor overflow
divide-by-zero error
POSIX compliance problem
monitor resolution too high
improperly oriented keyboard
network packets travelling uphill (use a carrier pigeon)
Decreasing electron flux
first Saturday after first full moon in Winter
radiosity depletion
CPU radiator broken
It works the way the Wang did, what's the problem
positron router malfunction
cellular telephone interference
techtonic stress
piezo-electric interference
(l)user error
working as designed
dynamic software linking table corrupted
heavy gravity fluctuation, move computer to floor rapidly
secretary plugged hairdryer into UPS
terrorist activities
not enough memory, go get system upgrade
interrupt configuration error
spaghetti cable cause packet failure
boss forgot system password
bank holiday - system operating credits not recharged
virus attack, luser responsible
waste water tank overflowed onto computer
Complete Transient Lockout
bad ether in the cables
Bogon emissions
Change in Earth's rotational speed
Cosmic ray particles crashed through the hard disk platter
Smell from unhygienic janitorial staff wrecked the tape heads
Little hamster in running wheel had coronary; waiting for replacement to be Fedexed from Wyoming
Evil dogs hypnotised the night shift
Plumber mistook routing panel for decorative wall fixture
Electricians made popcorn in the power supply
Groundskeepers stole the root password
high pressure system failure
failed trials, system needs redesigned
system has been recalled
not approved by the FCC
need to wrap system in aluminum foil to fix problem
not properly grounded, please bury computer
CPU needs recalibration
system needs to be rebooted
bit bucket overflow
descramble code needed from software company
only available on a need to know basis
knot in cables caused data stream to become twisted and kinked
nesting roaches shorted out the ether cable
The file system is full of it
Satan did it
Daemons did it
You're out of memory
There isn't any problem
Unoptimized hard drive
Typo in the code
Yes, yes, its called a design limitation
Look, buddy: Windows 3.1 IS A General Protection Fault.
That's a great computer you have there; have you considered how it would work as a BSD machine?
Please excuse me, I have to circuit an AC line through my head to get this database working.
Yeah, yo mama dresses you funny and you need a mouse to delete files.
Support staff hung over, send aspirin and come back LATER.
Someone is standing on the ethernet cable, causing a kink in the cable
Windows 95 undocumented "feature"
Runt packets
Password is too complex to decrypt
Boss' kid fucked up the machine
Electromagnetic energy loss
Budget cuts
Mouse chewed through power cable
Stale file handle (next time use Tupperware(tm)!)
Feature not yet implemented
Internet outage
Pentium FDIV bug
Vendor no longer supports the product
Small animal kamikaze attack on power supplies
The vendor put the bug there.
SIMM crosstalk.
IRQ dropout
Collapsed Backbone
Power company testing new voltage spike (creation) equipment
operators on strike due to broken coffee machine
backup tape overwritten with copy of system manager's favourite CD
UPS interrupted the server's power
The electrician didn't know what the yellow cable was so he yanked the ethernet out.
The keyboard isn't plugged in
The air conditioning water supply pipe ruptured over the machine room
The electricity substation in the car park blew up.
The rolling stones concert down the road caused a brown out
The salesman drove over the CPU board.
The monitor is plugged into the serial port
Root nameservers are out of sync
electro-magnetic pulses from French above ground nuke testing.
your keyboard's space bar is generating spurious keycodes.
the real ttys became pseudo ttys and vice-versa.
the printer thinks its a router.
the router thinks its a printer.
evil hackers from Serbia.
we just switched to FDDI.
halon system went off and killed the operators.
because Bill Gates is a Jehovah's witness and so nothing can work on St. Swithin's day.
user to computer ratio too high.
user to computer ration too low.
we just switched to Sprint.
it has Intel Inside
Sticky bits on disk.
Power Company having EMP problems with their reactor
The ring needs another token
new management
telnet: Unable to connect to remote host: Connection refused
SCSI Chain overterminated
It's not plugged in.
because of network lag due to too many people playing deathmatch
You put the disk in upside down.
Daemons loose in system.
User was distributing pornography on server; system seized by FBI.
BNC (brain not connected)
UBNC (user brain not connected)
LBNC (luser brain not connected)
disks spinning backwards - toggle the hemisphere jumper.
new guy cross-connected phone lines with ac power bus.
had to use hammer to free stuck disk drive heads.
Too few computrons available.
Flat tire on station wagon with tapes. ("Never underestimate the bandwidth of a station wagon full of tapes hurling down the highway" Andrew S. Tannenbaum)
Communications satellite used by the military for star wars.
Party-bug in the Aloha protocol.
Insert coin for new game
Dew on the telephone lines.
Arcserve crashed the server again.
Some one needed the powerstrip, so they pulled the switch plug.
My pony-tail hit the on/off switch on the power strip.
Big to little endian conversion error
You can tune a file system, but you can't tune a fish (from most tunefs man pages)
Dumb terminal
Zombie processes haunting the computer
Incorrect time synchronization
Defunct processes
Stubborn processes
non-redundant fan failure
monitor VLF leakage
bugs in the RAID
no "any" key on keyboard
root rot
Backbone Scoliosis
/pub/lunch
excessive collisions & not enough packet ambulances
le0: no carrier: transceiver cable problem?
broadcast packets on wrong frequency
popper unable to process jumbo kernel
NOTICE: alloc: /dev/null: filesystem full
pseudo-user on a pseudo-terminal
Recursive traversal of loopback mount points
Backbone adjustment
OS swapped to disk
vapors from evaporating sticky-note adhesives
sticktion
short leg on process table
multicasts on broken packets
ether leak
Atilla the Hub
endothermal recalibration
filesystem not big enough for Jumbo Kernel Patch
loop found in loop in redundant loopback
system consumed all the paper for paging
permission denied
Reformatting Page. Wait...
..disk or the processor is on fire.
SCSI's too wide.
Proprietary Information.
Just type 'mv * /dev/null'.
runaway cat on system.
Did you pay the new Support Fee?
We only support a 1200 bps connection.
We only support a 28000 bps connection.
Me no internet, only janitor, me just wax floors.
I'm sorry a pentium won't do, you need an SGI to connect with us.
Post-it Note Sludge leaked into the monitor.
the curls in your keyboard cord are losing electricity.
The monitor needs another box of pixels.
RPC_PMAP_FAILURE
kernel panic: write-only-memory (/dev/wom0) capacity exceeded.
Write-only-memory subsystem too slow for this machine. Contact your local dealer.
Just pick up the phone and give modem connect sounds. "Well you said we should get more lines so we don't have voice lines."
Quantum dynamics are affecting the transistors
Police are examining all internet packets in the search for a narco-net-trafficker
We are currently trying a new concept of using a live mouse. Unfortunately, one has yet to survive being hooked up to the computer.....please bear with us.
Your mail is being routed through Germany ... and they're censoring us.
Only people with names beginning with 'A' are getting mail this week (a la Microsoft)
We didn't pay the Internet bill and it's been cut off.
Lightning strikes.
Of course it doesn't work. We've performed a software upgrade.
Change your language to Finnish.
Fluorescent lights are generating negative ions. If turning them off doesn't work, take them out and put tin foil on the ends.
High nuclear activity in your area.
What office are you in? Oh, that one. Did you know that your building was built over the universities first nuclear research site? And wow, aren't you the lucky one, your office is right over where the core is buried!
The MGs ran out of gas.
The UPS doesn't have a battery backup.
Recursivity. Call back if it happens again.
Someone thought The Big Red Button was a light switch.
The mainframe needs to rest. It's getting old, you know.
I'm not sure. Try calling the Internet's head office -- it's in the book.
The lines are all busy (busied out, that is -- why let them in to begin with?).
Jan 9 16:41:27 huber su: 'su root' succeeded for .... on /dev/pts/1
It's those computer people in X {city of world}. They keep stuffing things up.
A star wars satellite accidently blew up the WAN.
Fatal error right in front of screen
That function is not currently supported, but Bill Gates assures us it will be featured in the next upgrade.
wrong polarity of neutron flow
Lusers learning curve appears to be fractal
We had to turn off that service to comply with the CDA Bill.
Ionization from the air-conditioning
TCP/IP UDP alarm threshold is set too low.
Someone is broadcasting pygmy packets and the router doesn't know how to deal with them.
The new frame relay network hasn't bedded down the software loop transmitter yet.
Fanout dropping voltage too much, try cutting some of those little traces
Plate voltage too low on demodulator tube
You did wha... oh _dear_....
CPU needs bearings repacked
Too many little pins on CPU confusing it, bend back and forth until 10-20% are neatly removed. Do _not_ leave metal bits visible!
_Rosin_ core solder? But...
Software uses US measurements, but the OS is in metric...
The computer fleetly, mouse and all.
Your cat tried to eat the mouse.
The Borg tried to assimilate your system. Resistance is futile.
It must have been the lightning storm we had (yesterday) (last week) (last month)
Due to Federal Budget problems we have been forced to cut back on the number of users able to access the system at one time. (namely none allowed....)
Too much radiation coming from the soil.
Unfortunately we have run out of bits/bytes/whatever. Don't worry, the next supply will be coming next week.
Program load too heavy for processor to lift.
Processes running slowly due to weak power supply
Our ISP is having {switching,routing,SMDS,frame relay} problems
We've run out of licenses
Interference from lunar radiation
Standing room only on the bus.
You need to install an RTFM interface.
That would be because the software doesn't work.
That's easy to fix, but I can't be bothered.
Someone's tie is caught in the printer, and if anything else gets printed, he'll be in it too.
We're upgrading /dev/null
The Usenet news is out of date
Our POP server was kidnapped by a weasel.
It's stuck in the Web.
Your modem doesn't speak English.
The mouse escaped.
All of the packets are empty.
The UPS is on strike.
Neutrino overload on the nameserver
Melting hard drives
Someone has messed up the kernel pointers
The kernel license has expired
Netscape has crashed
The cord jumped over and hit the power switch.
It was OK before you touched it.
Bit rot
U.S. Postal Service
Your Flux Capacitor has gone bad.
The Dilithium Crystals need to be rotated.
The static electricity routing is acting up...
Traceroute says that there is a routing problem in the backbone. It's not our problem.
The co-locator cannot verify the frame-relay gateway to the ISDN server.
High altitude condensation from U.S.A.F prototype aircraft has contaminated the primary subnet mask. Turn off your computer for 9 days to avoid damaging it.
Lawn mower blade in your fan need sharpening
Electrons on a bender
Telecommunications is upgrading.
Telecommunications is downgrading.
Telecommunications is downshifting.
Hard drive sleeping. Let it wake up on it's own...
Interference between the keyboard and the chair.
The CPU has shifted, and become decentralized.
Due to the CDA, we no longer have a root account.
We ran out of dial tone and we're and waiting for the phone company to deliver another bottle.
You must've hit the wrong any key.
PCMCIA slave driver
The Token fell out of the ring. Call us when you find it.
The hardware bus needs a new token.
Too many interrupts
Not enough interrupts
The data on your hard drive is out of balance.
Digital Manipulator exceeding velocity parameters
appears to be a Slow/Narrow SCSI-0 Interface problem
microelectronic Riemannian curved-space fault in write-only file system
fractal radiation jamming the backbone
routing problems on the neural net
IRQ-problems with the Un-Interruptible-Power-Supply
CPU-angle has to be adjusted because of vibrations coming from the nearby road
emissions from GSM-phones
CD-ROM server needs recalibration
firewall needs cooling
asynchronous inode failure
transient bus protocol violation
incompatible bit-registration operators
your process is not ISO 9000 compliant
You need to upgrade your VESA local bus to a MasterCard local bus.
The recent proliferation of Nuclear Testing
Elves on strike. (Why do they call EMAG Elf Magic)
Internet exceeded Luser level, please wait until a luser logs off before attempting to log back on.
Your EMAIL is now being delivered by the USPS.
Your computer hasn't been returning all the bits it gets from the Internet.
You've been infected by the Telescoping Hubble virus.
Scheduled global CPU outage
Your Pentium has a heating problem - try cooling it with ice cold water.(Do not turn off your computer, you do not want to cool down the Pentium Chip while he isn't working, do you?)
Your processor has processed too many instructions. Turn it off immediately, do not type any commands!!
Your packets were eaten by the terminator
Your processor does not develop enough heat.
We need a licensed electrician to replace the light bulbs in the computer room.
The POP server is out of Coke
Fiber optics caused gas main leak
Server depressed, needs Prozac
quantum decoherence
those damn raccoons!
suboptimal routing experience
A plumber is needed, the network drain is clogged
50% of the manual is in .pdf readme files
the AA battery in the wallclock sends magnetic interference
the xy axis in the trackball is coordinated with the summer solstice
the butane lighter causes the pincushioning
old inkjet cartridges emanate barium-based fumes
manager in the cable duct
We'll fix that in the next (upgrade, update, patch release, service pack).
HTTPD Error 666 : BOFH was here
HTTPD Error 4004 : very old Intel cpu - insufficient processing power
The ATM board has run out of 10 pound notes. We are having a whip round to refill it, care to contribute ?
Network failure - call NBC
Having to manually track the satellite.
Your/our computer(s) had suffered a memory leak, and we are waiting for them to be topped up.
The rubber band broke
We're on Token Ring, and it looks like the token got loose.
Stray Alpha Particles from memory packaging caused Hard Memory Error on Server.
paradigm shift...without a clutch
PEBKAC (Problem Exists Between Keyboard And Chair)
The cables are not the same length.
Second-system effect.
Chewing gum on /dev/sd3c
Boredom in the Kernel.
the daemons! the daemons! the terrible daemons!
I'd love to help you -- it's just that the Boss won't let me near the computer.
struck by the Good Times virus
YOU HAVE AN I/O ERROR -> Incompetent Operator error
Your parity check is overdrawn and you're out of cache.
Communist revolutionaries taking over the server room and demanding all the computers in the building or they shoot the sysadmin. Poor misguided fools.
Plasma conduit breach
Out of cards on drive D:
Sand fleas eating the Internet cables
parallel processors running perpendicular today
ATM cell has no roaming feature turned on, notebooks can't connect
Webmasters kidnapped by evil cult.
Failure to adjust for daylight savings time.
Virus transmitted from computer to sysadmins.
Virus due to computers having unsafe sex.
Incorrectly configured static routes on the corerouters.
Forced to support NT servers; sysadmins quit.
Suspicious pointer corrupted virtual machine
It's the InterNIC's fault.
Root name servers corrupted.
Budget cuts forced us to sell all the power cords for the servers.
Someone hooked the twisted pair wires into the answering machine.
Operators killed by year 2000 bug bite.
We've picked COBOL as the language of choice.
Operators killed when huge stack of backup tapes fell over.
Robotic tape changer mistook operator's tie for a backup tape.
Someone was smoking in the computer room and set off the halon systems.
Your processor has taken a ride to Heaven's Gate on the UFO behind Hale-Bopp's comet.
it's an ID-10-T error
Dyslexics retyping hosts file on servers
The Internet is being scanned for viruses.
Your computer's union contract is set to expire at midnight.
Bad user karma.
/dev/clue was linked to /dev/null
Increased sunspot activity.
We already sent around a notice about that.
It's union rules. There's nothing we can do about it. Sorry.
Interference from the Van Allen Belt.
Jupiter is aligned with Mars.
Redundant ACLs.
Mail server hit by UniSpammer.
T-1's congested due to porn traffic to the news server.
Data for intranet got routed through the extranet and landed on the internet.
We are a 100% Microsoft Shop.
We are Microsoft. What you are experiencing is not a problem; it is an undocumented feature.
Sales staff sold a product we don't offer.
Secretary sent chain letter to all 5000 employees.
Sysadmin didn't hear pager go off due to loud music from bar-room speakers.
Sysadmin accidentally destroyed pager with a large hammer.
Sysadmins unavailable because they are in a meeting talking about why they are unavailable so much.
Bad cafeteria food landed all the sysadmins in the hospital.
Route flapping at the NAP.
Computers under water due to SYN flooding.
The vulcan-death-grip ping has been applied.
Electrical conduits in machine room are melting.
Traffic jam on the Information Superhighway.
Radial Telemetry Infiltration
Cow-tippers tipped a cow onto the server.
tachyon emissions overloading the system
Maintenance window broken
We're out of slots on the server
Computer room being moved. Our systems are down for the weekend.
Sysadmins busy fighting SPAM.
Repeated reboots of the system failed to solve problem
Feature was not beta tested
Domain controller not responding
Someone else stole your IP address, call the Internet detectives!
It's not RFC-822 compliant.
operation failed because: there is no message for this error (#1014)
stop bit received
internet is needed to catch the etherbunny
network down, IP packets delivered via UPS
Firmware update in the coffee machine
Temporal anomaly
Mouse has out-of-cheese-error
Borg implants are failing
Borg nanites have infested the server
error: one bad user found in front of screen
Please state the nature of the technical emergency
Internet shut down due to maintenance
Daemon escaped from pentagram
crop circles in the corn shell
sticky bit has come loose
Hot Java has gone cold
Cache miss - please take better aim next time
Hash table has woodworm
Trojan horse ran out of hay
Zombie processes detected, machine is haunted.
overflow error in /dev/null
Browser's cookie is corrupted -- someone's been nibbling on it.
Mailer-daemon is busy burning your message in hell.
According to Microsoft, it's by design
vi needs to be upgraded to vii
greenpeace free'd the mallocs
Terrorists crashed an airplane into the server room, have to remove /bin/laden. (rm -rf /bin/laden)
astropneumatic oscillations in the water-cooling
Somebody ran the operating system through a spelling checker.
Rhythmic variations in the voltage reaching the power supply.
Keyboard Actuator Failure. Order and Replace.
Packet held up at customs.
Propagation delay.
High line impedance.
Someone set us up the bomb.
Power surges on the Underground.

lunedì 5 novembre 2007

[tip and trick] OpenVPN init respawn


dopo mesi di facazzismo mi sono deciso a mettere in respawn i miei processi OpenVPN .







[..cut /etc/inittab ..]
s1:2345:respawn:/usr/local/sbin/openvpn --config /etc/openvpn/server-A.conf
s2:2345:respawn:/usr/local/sbin/openvpn --config /etc/openvpn/server-B.conf
s3:2345:respawn:/usr/local/sbin/openvpn --config /etc/openvpn/server-C.conf
s4:2345:respawn:/usr/local/sbin/openvpn --config /etc/openvpn/server-D.conf
[..cut..]

La configurazione è OK , al boot parte tutto , MA le interfacce non se la sentivano di partire. Alla fine ho trovato il disguido , questo :

[..cut /etc/openvpn/server-A.conf ..]
# By default, log messages will go to the syslog (or

# on Windows, if running as a service, they will go to
# the "\Program Files\OpenVPN\log" directory).
# Use log or log-append to override this default.
# "log" will truncate the log file on OpenVPN startup,
# while "log-append" will append to it. Use one
# or the other (but not both).
;log openvpn.log
;log-append /var/log/openvpn.log

# Set the appropriate level of log
# file verbosity.
#
# 0 is silent, except for fatal errors
# 4 is reasonable for general usage
# 5 and 6 can help to debug connection problems
# 9 is extremely verbose
verb 4 # da mettere a 0, o abilitare il log
[..cut..]


essendo che esiste del "pattume" inviato allo standard output ( STDOUT ) il processo partiva , ma non procedeva, per cui come da commento nel file di configurazione ( /etc/openvpn/server-A.conf ) o si elimina la "verbosità" e basta , oppure si abilita il log. Così da eliminare il redirect allo STDOUT .

L'opzione "verb X" serve ad aumentare / diminuire ( come scritto nella descrizione ) i messaggi generati dal programma. In questo caso ho suggerito di mettere 0 ( zero ) all'opzione pensando che chi l'utente finale sia un privato,comunque è sempre bene tenere traccia tramite log di quello che succede, soprattutto se si tratta di una vpn.

giovedì 6 settembre 2007

ethX .. ethernet dei miei stivali dove sei?


Ieri mi è venuto in testa di andar a mettere le mani su uno dei tanti router/firewall che ho configurato , uno di quelli che fa cose un po circensi , per intenderci ha 5 interfacce di rete , distribuite su 2 ethernet cards. come al solito il coso è cresciuto in maniera disordinata e molto molto "transilvanica" :) dopo che per qualche tempo - circa 2 anni - non è stato toccato l'hardware. Bon , a questo punto arriviamo al momento in cui mi metto a controllare le interfacce dato che ogni tanto qualcosina perde colpi .. ecco allora che lo sgomento si fa terrore, il panico diventa isteria ..

QUALE MINCHIA DI BUCO È LA ETH3 ?!?!?!??!?!?!

L'apparato come ho detto fa cose circensi .. diciamo che sostiene una delle cose di SuperIperEstremoAssolutamente vitali per il posto dove lavoro , e non potevo mettermi a staccare e riattaccare i cavi per vedere un po cosa mi rispondeva il kernel .. cosa barbara vero ? .. Bhe poi - non lo sapevo assolutamente - così passano i minuti e cazzeggiando qui e li .. caffè .. sigaretta .. chiaccherata .. cazzi miei .. mi viene in mente di fare altro .. lasciando che il mondo continui a girare per i fatti suoi , quando ad un certo punto leggendo il manuale di ethtool mi inbatto nell'opzione -p :)
Fighissimo!!! far blinckare X secondi ( al vomito se non gli si dice nulla ) l'interfaccia di rete prescelta :D

ethtool -p ethX # l'interfaccia blinckerà fino al saggio ^C
ethtool -p ethX 5 # l'interfaccia blinckerà per 5 secondi

Bene, risolto il problema .. quando avro un attimo andro a vedere di quel router .. per adesso continuo a fare i cazzi miei :) hihihi

venerdì 31 agosto 2007

nuove esperienze .. ruby

Spinto dalla curiosità e da come me lo ha presentato un amico di Lipsia ( Ligi ) ruby pare essere veramente un linguaggio che ben si presta alle mie necessità , per cui mi sto accingendo a vedere un po com'è .

La cosa che per adesso mi esalta , è il fatto che è COMPLETAMENTE OPENSOURCE !

staremo a vedere :)

editor ruby online

venerdì 24 agosto 2007

3com e (in)sicurezza network


3com , fantomatico autodischiarato leader di sistemi di networking* ha tirato fuori dal cilindro il firewall integrato nelle sulle NIC , una volta! ( nvidia lo aveva gia messo direttamente nel bios delle motherboard ).

Dalle parole di Antonella Reverberi, corporate account manager di 3Com , si dovrebbe restare allibiti dalle possibilità date da queste schede , se non fosse del fatto che la loro gestione viene effettuta tramite rete :) quindi .. se io ho una scheda ethernet super hardened cosa me ne faccio se gli ideatori delle NIC filtranti non ha pensato prima a creare degli switch "proattivi"? ( cisco lo ha fatto vi ricordate la rete che si difende da sola ? )

Bhe sono dubbi leciti, vediamo un po se questa tecnologia prenderà piede , lo ha fatto active directory , perchè non dovrebbe una roba sinile. L'esempio lo faccio perchè ad adesso il sistema di gestione costa :) .. leggere solita fregatura .

Caratteristiche tecniche della super sicurezza offerta da 3com , gestione centralizzata delle NIC , con possibilità di gestione centralizzata dei singoli hardware, tale gestione viene garantita da protocolli di crittazione garantiti .. huahuahuahuhuahuahuahuahu .. DES a 56bit :D:D .. e 3DES a 168 bit ... un passo da gigante , soprattutto in un periodo in cui la chiave con sicurezza minima non va mai sotto i 1024 bit :D e non è assolutamente DES o 3DES sulle reti :) .. non c'è che dire sono innovatori :)
Per adesso , sempre nell'ambito dell'innovazione , i dispositivi disponibili sono schede 10/100 :D mentre le Gbit e Wireless sono in via di realizzazione :D


* per esperienza personale credo che sia il peggior hardware presente sul mercato dopo i dispositivi marchiati pirelli

domenica 19 agosto 2007

Sourcefire acquisisce l'antivirus Clamav


Sourcefire ha acquisito il 17 agosto clamav .

Sourcefire è la casa produttrice di Snort da poco quotata nella borsa di New york.

Le premesse sono abbastanza buone , dato che sourcefire ha sempre mantenuto un occhio di riguardo all'opensource ( vedasi snort ) per cui clamav sicuramente andrà a far parte di un grnade progetto di interpolazione con prodotti IDS.

Ecco l'annuncio ufficile sul sito clamav.net ed ecco quello sul sito sourcefire.com. Esistono anche delle FAQ sul sito clamav

Notizie dicono che il database ed anche il motore resterà comunque opensource :)

mercoledì 1 agosto 2007

spam con pdf , PDFassassin ...


Ciao sono uno spammer del menga .. e dato che i files in pdf non sono mai stati interessati da un filtro , io uso quelli per spammarti .. tho!

Bhe credo che sia questo , più o meno quello che è passato per la mente del geniale spammer che ha ideato lo spam via files PDF . Adobe ringrazia e la comunità opensource si attiva .. bhe si esiste gia una soluzione che anche se non una panacea pare che funzioni abbastanza bene , la sto provando da poco più di qualche ora ma per adesso non ho ancora avuto falsi positivi, per cui eccolo qua :

PDFassassin 0.1 Beta (sourceforge)
PDFassassin homepage

E' beta , dato che il fenomeno è veramente ancora allo stato embrionale , ma sono sicuro che farà parlare di se.

Come fuonziona ?

Bhe è una giuntina di spamassassin che agisce in maniera tanto stupida quanto geniale .

Spamassassin analizza il messaggio e controlla gli allegati e nel momento in cui esiste un allegato ed è un pdf viene passato a PDFassassin , e zak!


lunedì 23 luglio 2007

wifi al massimo .. circa 300 kilometri di point-to-point


Al politecnico di Torino iXem Labs , hanno creato un vero e proprio wifi con i controcosiddtti riuscendo a far comunicare con una rete point-to-point 2 punti distanti 295,16 km, bhe diciamo subito che l'altitudine del collegamento è di 4556 msl, tra Punta Gniffetti (monte Rosa ) e pian Cavallaro.
Dal punto della traiettoria libera siamo a posto , ma comunque sono 300km circa , una distanza che fa veramente impressione. Ma la cosa che stupisce e rende fieri tutti è che il tutto è stato creato con tecnologia OpenSource, usando strumenti esistenti solamente ritoccati e migliorati.

La notizia direttamente rilasciata dai laboratori iXem


Questo per dire quanto il WiMax sia una tecnologia da specchietto, dato che il ponte radio è stato creato senza l'utilizzo di tecnologie esagerate ;)

domenica 24 giugno 2007

clamav antivirus 0.91


Si sta affacciando pian piano la versione 0.91 dell'ottimo antivirus OpnSource clamAV , per adesso è disponibile in download clam RC2

Le novità della versione 0.91 saranno :

  • unpacker for NSIS (Nullsoft Scriptable Install System) self-extracting archives
  • unpacker for ASPack 2.12
  • new implementation of the Aho-Corasick pattern matcher providing better detection for wildcard enabled signatures
  • support for nibble matching and floating offsets
  • improved handling of .mdb files (fixes long startup times)
  • extraction of PE files embedded into other executables
  • better handling of PE & UPX
  • removed dependency on libcurl (improves stability)
  • IPv6 support in clamav-milter
  • libclamav.dll available under Windows
  • many other improvements and bugfixes

venerdì 18 maggio 2007

US-CERT .. gravissime vulnerabilità ...


.. nei sistemi anti intrusione.

Vulnerability Note VU#739224

CISCO ha provveduto a dichiarare che i suoi dispositivi sono afflitti dal problema.
Come si può leggere dal report, comunque anche 3com ed altre sono dichiarate "a richio" ma pare che a nessuno gli interessi .

e poi mi chiedete perchè diffido di quelle aziende che hanno come motto "WE ARE THE NETWROK EXPERTS" , o frasi simili .

venerdì 11 maggio 2007

Velocità IPV6 , record giapponese

E' un team diretto dall'università di tokyo ad avere il record di velocità sulla distanza - per la seconda volta - con protocollo IPV6 su una distanza di 30.000 Km alla velocità di 9.08Gbs .. magari averla a casa :)

Questa prova è stata fatta grazie ad un contest del consorzio Internet2

martedì 8 maggio 2007

IPv6 fermato insieme ai "pacchetti cattivi"

Se ne parla da anni ormai ed i tempi sono maturi per l'adozione del IPv6 , che metterebbe a posto i problemi di penuria di IP che con l'IPv4 abbiamo.

Solo che , per paradosso assoluto , la v6 è fermata dai firewall, dato da un problema del NAT .

Sembra una storia senza senso ma è veramente così
IPv6 su wikipedia
IPv6 Organisation

lunedì 7 maggio 2007

follie, la mappa di internet ...



La mappa di internet, l'ho trovata per caso un po di tempo fa, le classi A primarie e secondarie sono azzecate, il resto lascia a desiderare, ma credo che sia un must per i nerds :)

domenica 6 maggio 2007

webtalk sul networking


Van Jacobson presenta un web talk su come dovrebbe essere una rete moderna per essere efficiente, trattando un po' a tutto tondo il networking, ARPAnet e la sua evoluzione fino ad internet.