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A list of things to do, to pack and tips on attending a congress, especially Chaos Communication Congress.


List of things to do, to pack and tips on attending a congress, especially Chaos Communication Congress.

This list is irregularly updated (and pushed). You may want to refresh regularly. :-) Pull requests are welcome!


General considerations to make the congress a worthwhile experience for everyone, humans, robots and aliens alike. You'll also find a list of all the nice humans who have contributed to this list at the bottom.


  • Be excellent to each other.
  • If you spot somebody not being excellent to someone else, remind them to be excellent and have them apologi(s|z)e to the insulted part(y|ies), but only if the insulted wish to be apologi(s|z)ed to. Sometimes the insulted party will just want to move on and not have any further contact with someone who was coarse to them.
  • If you don't want to be called $swearword, don't behave like one.
  • Help each other out.
  • Read the “Anti Harrassment Policy” and live by it. :-)
  • Ask if it is ok to take a picture BEFORE taking the picture.

Things to do before traveling

  • Charge ALL the batteries!
  • Make backups.
  • bonus points for even testing restore
  • Update all the software on your devices.
  • You might want to empty your drives to make room for some COMPLETELY LEGAL media files that might be shared
  • Put your name on your stuff, especially on things you’ll likely lend to someone (power strips, cables etc). Twitter handles make excellent name tags because people know how to contact you right away. Prefer permanent markers over stickers, for theft reasons.
  • You DID make backups of all your devices, didn't you? That includes portable computers, servers, mobile phones, tablets, navigation devices, wrist watches and all your other $gadgets.
  • Store the backups not only on the device your backing up or another device you’re taking with you. A swiss bank locker is good, if you have one.
  • Send a pull request to this list for all the things I did not think of.
  • Feed the guinea pigs.
  • Water your plants.
  • (optional) Create account in the congress wiki, add your projects and find your assembly.

Things to send

Stuff that you're not allowed to bring on a plane or otherwise need to send via package courier or freight train. (Depending on its size.)

Not allowed or often problematic on flights, or at least not in hand-lagguage

  • Knifes, even some pocket knifes
  • Lockpicking equipment
  • Handcuffs

Things to pack


  • Bring ridiculous amounts of LED strips so we can illuminate ALL the things


  • train/plane tickets (including verification documents for self-printed DB tickets, like your credit card or Personalausweis)
  • congress tickets (printed or in iOS passbook)
  • passport or other kind of photo ID (Personalausweis)
  • driver's license (even an international one)
  • hotel booking
  • ham radio license (CEPT license)
  • Hackerspace passport
  • an organ donor card (We really hope you won't need them, but just in the case: you might save a life!)
  • your health insurance card

Payment stuff

  • some cash (€uros)
  • credit card
  • coins (€uros, for automated vending machines, like public transport tickets)
  • Bitcoin wallet (the encrypted fashion with a good passphrase)
  • emergency numbers for your bank so you can lock your credit card/debit card/Bankomatkarte in case it gets lost/stolen/left behind.
    • For your Bankomat Karte (EC debit card) check if the “Geo Control” of your bank allows withdrawing in your destination country.


  • Cards and PINs for Car-Sharing

Emergency information

In case of an accident or other emergency condition carry a piece of information whom to contact or any special medical information that might be viable to your survival/first aid/medical staff.

Emergency Information for Events:

If you're in an emergency shout HELP!

If you need help, just call for help, there are many, many people around to help you.

Event and location related emergency information is in a seperate document for the corresponding event in this repository!

Upcoming events:

Chaos Communication Camp 2015 (2015-08-13 .. 2015-08-17) Chaos Communication Congress 2015 (2015-12-27 .. 2015-12-30)

Personal hygiene

  • tooth brush (plus charger if it is an electrical one)
  • toothpaste
  • shower gel
  • shampoo (to avoid bad hair days)
  • conditioner
  • tampons
  • sanitary towels
  • condoms, dental dams and other protective gear (Make sure the condoms are not beyond their usage date! (Yes, it really happens…))
  • lubricant (water based to be compatible with condoms)
  • disinfectants
  • soap
  • deodorant, antiperspirant
  • hairbrush/comb (to avoid bad hair days)
  • hair-band (Zopfringerl) to tame your mane
  • handkerchiefs
  • towel. Never hitchhike the Galaxy without one.
  • contact lenses
    • cleaning fluid
    • contact lens container
    • replacement contact lenses
    • replacement glasses
    • eye drops
  • glasses
  • spectacle case
  • cleaning cloth
  • Oropax or other things to plug into your ears for a good “night”'s sleep.
  • Hair dryer (in case your place/hotel doesn't supply one)


  • make up
  • nail polish
  • nail scissors
  • nail file
  • razor (with spare blades)
  • lipstick/lipgloss
  • lipbalm
  • tweezers
  • cotton swabs (Wattestäbchen)
  • make up remover pads
  • skin care


Personal Hygiene

  • Hand desinfectant

Generic medication

  • patches (Pflaster, for your webcam or if a MacBook AirFrisbee hit you)
  • Aspirin (If you partied too long …)
  • Thomapyrin (analgetic)
  • Parkemed (DE/AT), Ponstel (USA), Ponstel (UK) (analgetic)
  • Clarityn (or other histamine blocker if you're allergic to something)
  • Neocitran/Theraflu/Paracetamol (just in case hacker pest strikes)
  • contraceptives, prophylactic (contraceptive pill, condoms, etc.)
  • caffeine pills (In case you don't like Mate and nobody knows if you can actually drink the coffee served there.)
  • something for your stomach (if you've got a nervous digestive system when under stress, while flying or generally traveling)
  • camomile tea relives hyperacidity very well
  • Bepanthen

Personal medication

Your personal medication does not belong on the public interwebs for your privacy. This is just a reminder to pack it. Please do not include your personal medications in pull requests. :-)


  • Have a look at the Fahrplan and maybe make a preselection of talks you really "have to", "want to" or "would be nice to" see
  • Install one of the Fahrplan apps for Android (PlayStore, Source) or iOS (iTunes)
  • Be sure to schedule a period of time to get your T-Shirt or pullover(when preordered in the first two days)!
  • Have a sense of how the trains are going from the station near by, enter Dammtor here: direct connections to the airport, enter Dammtor at start and Airport


  • at least ONE clean shirt for each day you stay, plus two for traveling to and from congress (nerdy print is always welcome)
  • at least ONE set of clean underwear for each day you stay, plus two for traveling to and from congress (Doesn't necessarily need to be in matching pairs, but that is up to you.)
  • at least ONE pair of clean socks/stockings/tights/overknees for each day you stay, plus two for traveling to and from congress
  • enough pants/skirts/trousers/dresses/etc. so you can wear clean clothes every day you attend congress (even if somebody accidentally (or intentionally) spills a beverage all over you!)
  • sewing set (needle, thread, spare button for your trousers/skirts/shirts/blouses/etc.)
  • long sleeve shirts
  • hoodies, pullovers
  • jacket (wind proof, at least somewhat water resistant)
  • cap, wool cap
  • umbrella
  • comfortable shoes (You'll make a lot of distance-units during your stay)
  • bag to separate laundry from clean clothes in your luggage
  • gloves
  • scarf
  • swim suit, bikini, trunks (in case your hotel has a pool)


  • laptop (with a working battery)
  • charger for laptop
    • Mac: small Duck-head and long (Schuko Plug) cord
    • Mac: MagSafe to MagSafe 2 Adapter
    • Mac: There are also cords that you can plug directly into the MagSafe charger (when removing the duck head) that end in a Euro Plug. These cables are also often used on electric shavers
    • Mac: USB-C type connector/charger
  • plug adaptor from your country of origin to Schuko Plug
  • 3* or 5* multi-plug power extension (230V≈ @50Hz) with Schuko Plug (and optional switch, hotel rooms usually suffer from severe lack of outlets)
  • simple extension cord (230V @50Hz, Schuko Plug, the power outlet in your hotel room may be far away from your bedside)
  • USB flash drives
    • Put an OWNER.txt file on them with information on how to contact you in case one gets lost accidentally. (Twitter, phone (for example DECT, 31C3 GSM extensions), email, name of the assembly you're well known at, owl, raven)
    • For devices with private information be sure to encrypt them! (TrueCrypt, GPG, FileVault, EncFS, Bitlocker, gbde, geli, dm-crypt, LUKS, eCryptFS)
    • make note of the filesystem used so you know if they will work on the system of the person you want to exchange data with. (FAT32 is a safe bet to work everywhere.)
    • Mac: NTFS, ZFS, Ext can be read, but not written to without 3rd party software. FAT, ExFAT, HFS+(J), HFSX are fine for current OS X versions
  • Ethernet cords (Cat5e) of multiple lengths (Maybe have a spare to tether a friend)
    • USB/Thunderbolt to Ethernet adapter, if your device needs one (for example thin notebooks)
  • mass storage drives (take some empty ones with you to fill with data and/or bring your own data and share it!)
  • Cat5 o'nine tails
  • Throwing star LAN Tap
  • Optional 1-10Gigabit Ethernet Switch
  • Pineappleboard
  • SDR Equipment: HackRF, RTL-SDR, Ettus, Rad1o badge, …
  • Torch (Have spare batteries or rechargeables and a matching charger that works with 230V≈ @50Hz)
  • Headlamp
  • LED throwies
  • phones
    • mobile phone (GSM) one each
      • for your day-to-day SIM card
      • for an optional SIM card of the country you travel to
      • for a local GSM network at the venue,
    • DECT phone (for the local wireless phone network avilable at many CCC events)
  • DVB-T dongle, there might be local DVB-T transmitter for the streams,
  • chargers for all those phones, or at least matching wires if you can charge over USB.
    • iPhone, iPhone 3G, iPhone 3GS, iPhone 4, iPhone 4S, iPad, iPad 2, iPad 3 (The new iPad)
      • USB-30 Pin dock connector (one each)
    • iPhone 5, iPhone 5S, iPhone 6, iPhone 6+ (or newer), iPad 4, iPad mini, iPad mini 2 with retina display, iPad mini 3
      • USB-Lightning (one each)
    • most Android phones
      • USB-micro USB cable
    • DECT phones
      • Charging cradle (with power brick if required)
  • SIM cards (your usual one, local german SIM, CCC SIM)
  • Apple certified SIM eject tool™ (aka bent paperclip) to swap SIM cards
  • Smart Watches
    • Charging cable or docking station required to charge
  • a portable battery pack (aka powerbank) so you can charge on the go. (And the necessary cable to recharge that battery pack overnight.)
  • WiFi router/firewall (to connect to the hotel Wifi/network)
  • photo camera
    • batteries
    • charger
    • memory cards (CF, SD, SDHC, xD, memory stick, etc.)
      • freshly formatted
    • card reader to import pictures (if your laptop doesn't have a matching built-in card reader)
    • camera bag
    • camera strap
    • lenses with lens caps
    • lens cleaning cloth
  • USB <-> RS232 adapter (preferably FTDI)
  • RS232 cable
  • USB A-B cable
  • mini USB cable
  • tesla coils
  • micro USB cable
  • Firewire (400, 800) cable
  • RJ45 Ethernet adapter (from USB or Thunderbolt) to access the wired network. Thanks for not leeching on the WiFi!
  • antenna wire for WiFi or ham radio equipment
  • 3.5mm jack splitter (so you can watch a movie or talk recording together on the train)
  • headphones (so you don't have to talk to other carbon units while traveling)
  • r0cket, fully charged (needs a micro USB cable for charging/programming)
  • monitor adapters (VGA, DVI, HDMI, mini Displayport/Displayport, USB-C; especially for the Mac users and those with other fancy slim laptops. ;-) ), you may need them for your presentation or lightning talk.
  • remote control for your presentation / lightning talk (also check the batteries in the remote), dont' forget the USB dongle if your remote requires one
  • tablet computer, iPad, Android tablet, Microsoft surface
  • Kindle
  • an actual book (for those offline blackout moments), see B.O.O.K.
  • ham radio equipment, portable
  • Infrared, Bluetooth or radio remote (for presentations)
  • all your devices!!1 (Raspberry Pi, Arduino, FreedomBox, DreamPlug, …)
    • + cables + SD-cards (+ GPIO equipment)
    • + extra WiFi antenna (USB) and/or extra Ethernet cord

Other gear

  • pocket knife (Conforming to the German Weapons Act: Blade must not exceed 12cm; Folding knifes with locking blades must not be designed to be opened with one hand. Also, “thrusting weapons” such as daggers, stilettos, swords etc. are restricted items.)
    • Swiss knife
    • Victorinox cybertool
    • Leatherman (check for one-handed opening mechanisms, such as thumb holes or studs)
  • screw drivers, pit set
  • soldering iron
  • any other tools you may need (even if unlikely)
  • analog notebook (dead tree style)
  • pen, pencil, quill
  • Winkekatze
  • rubber ducks
  • NERF guns and ammuntion
  • musical instruments (guitar, trumpet, grand piano, theremin, laser harp, cajón, gameboy, ukulele, tesla coils)
  • Electronic Tuner (with fresh batteries)
  • cable ties
  • A Slinky for the escalators
  • duct tape or gaffer tape (vital)
  • knitting/sewing needles and yarn (for guerrilla knitting/yarn bombing)
  • a blanket
  • a pillow (and sleeping bag/camping mat if you intend to sleep at the gym or in heaven)

If you travel with your dog

Please check in advance if dogs are allowed at the event you want to attend. Guide dogs are usually exempt, even if dogs are not allowed.

  • Blanket
  • Food (wet & dry, Snacks)
  • containers for water and food
  • brush
  • tick forceps / tick tweezers
  • backup leash
  • medication

Securing your devices

All security measures for devices on public Internet networks also apply here – threats might come from untrusted devices within, as well as from maleficent third parties outside the Congress network. Of course you should have these measures in place everywhere and all the time since event networks are no more or no less dangerous than the internet in general.

Read the How to survive guide in the Congress Wiki. There are many excellent tips in there or consult you local CryptoParty meetup.


Make fresh backups of ALL the devices you bring to CCCongress. Test that you can actually restore data from those backups!

BIOS/EFI Password

Make sure you do have set a BIOS or EFI Password to prevent booting from a live CD to attack your system.

Full disk encryption

Activate full disk encryption with pre-boot authentication. (Mac: Activate FileVault.)


You did make fresh backups of all your devices, did you?


Check that all your server services are using proper TLS. See or other sources you trust for help on how to properly configure your servers. (Mail, Web, VPN, SSH, etc.)

VPN tunnel

Have at least one trusted, working and tested VPN endpoint available for tunneling out of the congress network. If you don't have your own VPN server at your disposal ask friends you trust to help you out. If you do, ask your friends if they need a VPN endpoint and share!

Also have those tunnels configured on ALL the devices you intend to use, and have it tested. That includes your laptops, phones, tablets, servers, fridge, etc.


It is not recommended to connect your smartphone to the congress wifi, if you still can't resist, here are a few things to consider:

  • Make sure that it's not a 802.11b device, as it would slow down the complete wifi network.
  • Disable all synchronization services, as they might be using plaintext.
  • Disable all auto-discovery services (network music players, remote control apps, etc …).
  • Make sure there are no known exploits for your device (not that unknown-to-you exploits wouldn't be a possible risk as well…).
  • Turn off push notifications.
  • Update your apps, especially your browser.
  • Use a VPN tunnel if possible.
  • Use a Firewall and only allow the (few) services you trust.
  • If you don't have a VPN tunnel available, you can use OnionBrowser to surf via tor (which may be it's own kind of risk).
  • Set your GSM network selection to manual or you might end up connected to a rogue GMS network by somebody.

If you are unsure that there might still be some services running and transmitting plaintext data, do not connect.

PrePaid SIM Cards

Make sure you get a right sized SIM card for your GSM mobile phone! If you need help with buying a SIM card, ask a local for assistance. They're friendly!

For when you return home

  • store chocolate at home as an post-event depression antidote

Thanks for being awesome

These people have contributed to improve this list for everyone (in no particular order):


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