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Add some notes to README

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2019-04-26 16:24:39 +03:00
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README.md
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@@ -184,6 +184,15 @@ echo dd$(head -c 512 /dev/urandom | md5sum | cut -f 1 -d ' ')
``` ```
## Antireplay cache
In order to prevent replay attacks, we have internal storage of first
frames messages for connected clients. These frames are generated
randomly by design and we have negligible possibility of duplication
(probability is 1/(2^64)) but it could be quite effective in order to
prevent replays.
## Environment variables ## Environment variables
It is possible to configure this tool using environment variables. You It is possible to configure this tool using environment variables. You
@@ -191,7 +200,7 @@ can configure any flag but not secret or adtag. Here is the list of
supported environment variables: supported environment variables:
| Environment variable | Corresponding flags | Default value | Description | | Environment variable | Corresponding flags | Default value | Description |
|--------------------------|------------------------|-----------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| |-------------------------------|-----------------------------|-----------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `MTG_DEBUG` | `-d`, `--debug` | `false` | Run in debug mode. Usually, you need to run in this mode only if you develop this tool or its maintainer is asking you to provide logs with such verbosity. | | `MTG_DEBUG` | `-d`, `--debug` | `false` | Run in debug mode. Usually, you need to run in this mode only if you develop this tool or its maintainer is asking you to provide logs with such verbosity. |
| `MTG_VERBOSE` | `-v`, `--verbose` | `false` | Run in verbose mode. This is way less chatty than debug mode. | | `MTG_VERBOSE` | `-v`, `--verbose` | `false` | Run in verbose mode. This is way less chatty than debug mode. |
| `MTG_IP` | `-b`, `--bind-ip` | `127.0.0.1` | Which IP should we bind to. As usual, `0.0.0.0` means that we want to listen on all interfaces. Also, 4 zeroes will bind to both IPv4 and IPv6. | | `MTG_IP` | `-b`, `--bind-ip` | `127.0.0.1` | Which IP should we bind to. As usual, `0.0.0.0` means that we want to listen on all interfaces. Also, 4 zeroes will bind to both IPv4 and IPv6. |
@@ -212,6 +221,8 @@ supported environment variables:
| `MTG_BUFFER_WRITE` | `-w`, `--write-buffer` | `65536` | The size of TCP write buffer in bytes. Write buffer is the buffer for messages which are going from client to Telegram. | | `MTG_BUFFER_WRITE` | `-w`, `--write-buffer` | `65536` | The size of TCP write buffer in bytes. Write buffer is the buffer for messages which are going from client to Telegram. |
| `MTG_BUFFER_READ` | `-r`, `--read-buffer` | `131072` | The size of TCP read buffer in bytes. Read buffer is the buffer for messages from Telegram to client. | | `MTG_BUFFER_READ` | `-r`, `--read-buffer` | `131072` | The size of TCP read buffer in bytes. Read buffer is the buffer for messages from Telegram to client. |
| `MTG_SECURE_ONLY` | `-s`, `--secure-only` | `false` | Support only clients with secure mode (i.e only clients with dd-secrets). | | `MTG_SECURE_ONLY` | `-s`, `--secure-only` | `false` | Support only clients with secure mode (i.e only clients with dd-secrets). |
| `MTG_ANTIREPLAY_MAXSIZE` | `anti-replay-max-size` | `128` | Max size of antireplay cache in megabytes. |
| `MTG_ANTIREPLAY_EVICTIONTIME` | `anti-replay-eviction-time` | `168h` | Eviction time for antireplay cache entries. |
Usually you want to modify only read/write buffer sizes. If you feel Usually you want to modify only read/write buffer sizes. If you feel
that proxy is slow, try to increase both sizes giving more priority to that proxy is slow, try to increase both sizes giving more priority to