NCam nodeid: setting node id in OScam/CCcam 2026

If you are stuck at the stage of connecting the line and the server repeatedly rejects the client — it is almost certainly due to the node id. NCam nodeid: configuring this parameter raises questions for most who are just starting to understand the CCcam protocol. Let's break down what it actually is, where to find it, and how to write it correctly.

What is node id in NCam and why is it needed

Essentially, node id is a unique fingerprint of your client in the CCcam network. The server uses it to understand who is connecting to it, and if the identifier does not match what is expected, the connection is closed immediately.

Node id in simple terms

Imagine that the username is your name, the password is the entry code, and the node id is the serial number of your device. The server can check all three at the same time. Node id consists of 8 bytes, written in hexadecimal format — a total of exactly 16 characters, for examplea1b2c3d4e5f60718.

When starting, NCam generates the node id automatically if it is not set manually. This identifier is then transmitted to the server during the CCcam protocol handshake. The server either accepts the client or rejects it — it depends on whether the sent node id matches what is recorded in its database.

How node id differs from username and password

Username and password are the credentials of the line, they are checked at the authentication level. Node id is a different level: it identifies the network node itself, not the account. You can have the correct login/password but get rejected due to an incorrect node id.

Important point: node id is not encrypted separately — it is transmitted in the body of the CCcam handshake. Therefore, if the server maintains a whitelist of node ids, neither the correct password nor the correct IP will save you without a matching identifier.

In which protocols is node id mandatory

Node id is used in the CCcam protocol — this is its native concept. In the newcamd protocol, the equivalent is a 14-byte key (thekey parameter in the config), which is often confused with node id. These are different things. If you are setting up a newcamd line and see a mention of node id — it is likely referring to a different parameter.

For the mgcamd protocol, the situation is similar — it has its own identification scheme. Node id in the classical sense is specifically CCcam.

Where to find node id in NCam

Good news: NCam always writes its node id at startup. Bad news: if you don't know where to look, finding it on the first try is not easy.

Viewing node id in NCam logs (ncam.log)

When starting, NCam outputs a log line that looks something like this:

2026/01/15 09:23:41  11EF cccam: proxy node id: a1b2c3d4e5f60718

By default, the log is written to a file, the path to which is specified in the[global] section of the/etc/ncam/ncam.conf file, parameterlogfile. Typical paths:/var/log/ncam.log or/tmp/ncam.log — depends on the distribution and build.

The fastest way to find the node id:

grep -i "node id" /var/log/ncam.log | tail -5

Or, if NCam wrote the log in the systemd journal:

journalctl -u ncam --no-pager | grep -i "node id"

The NCam team and web interface (webif) for displaying node id

If NCam is built with webif (and most modern builds include it), the node id is visible directly in the browser. By default, webif is available on port 8888:http://<receiver_IP>:8888.

Go to the tabStatus → sectionReaders → click on the desired CCcam reader. There will be a fieldNode ID with the current value. Alternatively, theCCcam info section in the main menu of webif shows the node id that NCam announces to the server.

Generating your own node id

Sometimes you need to set the node id manually — for example, when transferring a line from one receiver to another. There is no magic here: any valid 16-character hex string will do.

Generation via command line:

cat /dev/urandom | tr -dc 'a-f0-9' | head -c 16

Or via Python 3:

python3 -c "import os; print(os.urandom(8).hex())"

The result will be something like3f8a1c0e9d2b7f4a. Write it down, use it in the config.

Setting node id in configuration files

This is where the real work begins. NCam nodeid: configuration in the config is done in several places depending on the role — client or server.

Specify the node id in ncam.server (section [reader])

The configuration file for readers is located at/etc/ncam/ncam.server. For CCcam connection to a remote server, the section looks like this:

[reader]

The parametercccam_node_id is what the server sees as the client’s node id. If not specified, NCam will take the value generated at startup. Different readers should have differentcccam_node_id.

The cccam_node_id and cccversion parameters

Two parameters work in tandem.cccversion informs the server which version of CCcam the client is emulating — typical values2.0.11,2.2.1,2.3.0. The server can filter clients by version, and if the version does not match the expected one, the connection will drop even before checking the node id.

Some servers require a strictly defined version. Check with your provider or look in the logs — NCam writes at which stage the handshake is interrupted.

Server-side configuration in ncam.user

If NCam acts as a server, user-level restrictions are set in/etc/ncam/ncam.user. You can bind a user to a specific node id:

[account]

Then the server will accept a client with this login only if their node id matches the specified one. This is an additional level of protection — especially useful if you are distributing lines to specific receivers.

If the fieldcccam_node_id inncam.user is left empty, the server accepts any node id from this user.

Node id matching in CCcam.cfg when connecting to a CCcam server

When connecting an NCam client to a real CCcam server, the file/etc/CCcam.cfg on the server side is used. There, the client line looks like this:

C: your.server.com 12000 mylogin mypassword

In the original CCcam, the node id is not explicitly specified inCCcam.cfg — it is taken from what the client sent upon the first connection and is remembered. When migrating from a CCcam client to an NCam client, you need to find out what node id the old client had (from CCcam logs:grep "node id" /var/log/CCcam.log), and specify it incccam_node_id in NCam. Otherwise, the server will see the "new" client with a different node id and may block it or create a duplicate entry.

Typical node id configuration errors and their solutions

Most problems with node id can be resolved in 10 minutes if you know what to look for in the logs.

Error "wrong node id" / line does not come up

In the NCam log, it looks something like this:

2026/01/15 09:31:02  11EF cccam: wrong node id from server

Or from the server side:

2026/01/15 09:31:02  11EF cccam: client sent wrong node id, disconnecting

Diagnostic algorithm:

1. Make sure thatcccam_node_id exactly 16 characters. Not 14, not 18.
2. All characters are from the range0-9 anda-f. Letters in lowercase.
3. No spaces, hyphens, colons.
4. Compare the value in the config with what the server expects (check with the provider).
5. Checkcccversion — first try2.3.0, then2.2.1.

Duplicate node id for multiple clients

This is classic when cloning the config between receivers. Settings copied to the second receiver — both now operate with the samecccam_node_id. The server perceives them as one device and when the second connects, it kills the first, and then vice versa.

In the logs, this is visible as frequent reconnections and lines likecccam: node id conflict detected. The solution is obvious: each receiver — its own unique node id. Generate a separate value for each using the commands provided above.

Invalid length or invalid characters

Common confusion: newcamd uses a 14-byte key (key = 0102030405060708090a0b0c0d — 26 hex characters), while CCcam node id is 8 bytes, that is, 16 hex characters. If you accidentally pasted a newcamd key or trimmed it to 14 characters in thecccam_node_id field, NCam will either throw an error when parsing the config or send an incorrect value to the server.

Another option: node id in uppercase. Some implementations of server CCcam are case-sensitive when comparing. Use lowercase — this is the standard.

Mismatch between cccversion and build

NCam emulates CCcam, and sometimes the server checks not only the version but also the build number. Inncam.server there is a parameterccckeyvalue — its default value usually works, but some servers require a specific version/build pair. If after correcting the node id the line still does not come up — try sequentiallycccversion = 2.0.11,2.1.4,2.2.1,2.3.0.

Enable the debug log (more on this below) and see at which step the handshake is interrupted. NCam in debug mode will show the entire sequence of exchanges with the server.

Checking and testing the line after setup

NCam nodeid: setup completed, config saved. Now you need to make sure everything works — not just that the "line is connected," but that the cards are read and ECMs respond.

Enabling detailed NCam log

In the file/etc/ncam/ncam.conf in the section[global] set:

[global]

The valuedebug = 65535 — is the maximum level, outputs everything: handshakes, ECM, authorization. For continuous operation, this is excessive (the log grows quickly), but for diagnostics — it's what you need.

After changing the config, restart the service:

systemctl restart ncam

And immediately monitor the log:

tail -f /var/log/ncam.log | grep -E "cccam|node|ECM|CONNECT"

Reading cards and ECM responses

A successful connection looks like this:

2026/01/15 09:45:11  11EF cccam: connected to your.server.com:12000

The linecards received means that the cards from the server have arrived — entitlements are present. The line withECM cw answer — is the actual response time to the decryption request. A normal indicator is up to 500 ms, anything above 800 ms will be noticeable as artifacts on the screen.

If the cards have arrived, but ECMs are not coming — the problem is no longer with the node id, but with the mapping of channels or SID lists.

Control via webif: reader status and response time

Openhttp://<IP>:8888 → tabReaders. A working reader shows the statusconnected (green), the number of cards, average ECM response time, and request counter.

If the statusdisconnected orconnecting already more than 30 seconds — looking at the log, searching for the reason. With the correctly configured node id and valid credentials, the connection is established within 5–15 seconds after startup.

Webif also shows which specific node id NCam uses for this reader — convenient to check against what is specified in the config to ensure that the changes have been applied.

And finally: if your server does not check the node id at all and filters only by IP address and password — any value incccam_node_id will do. But this is rare for normally configured servers in 2026. Most operators use node id as an additional identifier specifically to tie the line to a specific device.