In rsync the "bwlimit" parameter is explicitly ignored, how to fix this

Mnemosyne

4/29/23, 8:43 AM

I have rsyncd version 3.1.2 listening on port 873 and I want to limit the bandwidth with which my files are downloaded by a client connecting to me. I added a bwlimit both in the config file:

uid = nobody
gid = nogroup

[data]
path = /var/data/files/
comment = Repo
read only = yes
bwlimit = 10

and tried it on the daemon config file

[Unit]
Description=fast remote file copy program daemon
ConditionPathExists=/etc/rsyncd.conf

[Service]
ExecStart=/usr/bin/rsync --daemon --no-detach --bwlimit=10

[Install]
WantedBy=multi-user.target

In either case when my client connects with rsync to download the file, the parameter gets ignored per logs:

Dec 29 08:27:12 pubserver systemd[1]: Started fast remote file copy program daemon.
Dec 29 08:27:12 pubserver rsyncd[32533]: rsyncd version 3.1.2 starting, listening on port 873
Dec 29 08:29:42 pubserver rsyncd[1534]: Unknown Parameter encountered: "bwlimit"
Dec 29 08:29:42 pubserver rsyncd[1534]: IGNORING unknown parameter "bwlimit"
Dec 29 08:29:42 pubserver rsyncd[1534]: connect from workspace (10.155.120.1)
Dec 29 08:29:42 pubserver rsyncd[1534]: rsync on repo/ from workspace (10.155.120.1)
Dec 29 08:29:42 pubserver rsyncd[1534]: building file list
Dec 29 08:29:44 pubserver rsyncd[1534]: sent 17567 bytes  received 72 bytes  total size 16787953

Is there a way to make this limit work? Alternatively, how to slow down/throttle rsync connections if bwlimit is no longer supported?

101

0 + 0

ssh

rsync

throttling

rate-limiting

digijay

4/29/23, 9:11 AM

Alternatively you could try to use [`trickle`](https://linux.die.net/man/1/trickle) to limit the bandwidth (though I'm not sure if it works in daemon mode, never tried it myself)

Score:3

Server

AlexD

4/29/23, 9:02 AM

bwlimit can be used only as a command-line parameter but not in /etc/rsyncd.conf

0 + 0

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: In rsync the "bwlimit" parameter is explicitly ignored, how to fix this

TH: ใน rsync พารามิเตอร์ "bwlimit" ถูกละเว้นอย่างชัดเจน วิธีแก้ไขปัญหานี้

RO: În rsync, parametrul „bwlimit” este ignorat în mod explicit, cum să remediați acest lucru

RU: В rsync явно игнорируется параметр "bwlimit", как это исправить

VI: Trong rsync, tham số "bwlimit" bị bỏ qua rõ ràng, cách khắc phục điều này

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