[SOLVED] SSH error while trying to connect to the AUR

KevinCrrl · 2025-12-06 17:29:20

I was trying to push a package I created and suddenly I got this error that I didn't get the last time I pushed to the AUR:

$ LC_ALL=C git push
Bad packet length 1231976033.
ssh_dispatch_run_fatal: Connection to 209.126.35.78 port 22: message authentication code incorrect
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

I checked the connection directly without using git and this was the output:

$ ssh -T aur@aur.archlinux.org -vvv
debug1: OpenSSH_10.2p1, OpenSSL 3.6.0 1 Oct 2025
debug3: Running on Linux 6.17.9-zen1-1-zen #1 ZEN SMP PREEMPT_DYNAMIC Mon, 24 Nov 2025 15:21:16 +0000 x86_64
debug3: Started with: ssh -T aur@aur.archlinux.org -vvv
debug1: Reading configuration data /home/Kevin/.ssh/config
debug1: /home/Kevin/.ssh/config line 17: Applying options for aur.archlinux.org
debug3: kex names ok: [diffie-hellman-group1-sha1,diffie-hellman-group14-sha1]
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 2: Including file /etc/ssh/ssh_config.d/20-systemd-ssh-proxy.conf depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/20-systemd-ssh-proxy.conf
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/home/Kevin/.ssh/known_hosts'
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/home/Kevin/.ssh/known_hosts2'
debug2: resolving "aur.archlinux.org" port 22
debug3: resolve_host: lookup aur.archlinux.org:22
debug3: channel_clear_timeouts: clearing
debug3: ssh_connect_direct: entering
debug1: Connecting to aur.archlinux.org [209.126.35.78] port 22.
debug3: set_sock_tos: set socket 3 IP_TOS 0xb8
debug1: Connection established.
debug1: loaded pubkey from /home/Kevin/.ssh/id_ed25519_aur.pub: ED25519 SHA256:3CsElrSGr0WbaAl/huFOm1ulJlp6PsHCE1N3XHB0WZs
debug1: identity file /home/Kevin/.ssh/id_ed25519_aur.pub type 2
debug1: no identity pubkey loaded from /home/Kevin/.ssh/id_ed25519_aur.pub
debug1: Local version string SSH-2.0-OpenSSH_10.2
debug1: Remote protocol version 2.0, remote software version OpenSSH_10.2
debug1: compat_banner: match: OpenSSH_10.2 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to aur.archlinux.org:22 as 'aur'
debug1: load_hostkeys: fopen /home/Kevin/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug3: order_hostkeyalgs: no algorithms matched; accept original
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
Bad packet length 1231976033.
debug2: sshpkt_disconnect: sending SSH2_MSG_DISCONNECT: Packet corrupt
debug3: send packet: type 1
ssh_dispatch_run_fatal: Connection to 209.126.35.78 port 22: message authentication code incorrect

I've searched and found I could use Ciphers, but it doesn't seem to work. It only responds when I connect or push to other platforms like GitHub or GitLab. What could I do?

Last edited by KevinCrrl (2025-12-08 21:53:41)

gromit · 2025-12-06 17:37:51

Do you get this error reproducibly, each time that you connect with ssh -T aur@aur.archlinux.org?
For me it works without issue:

$ ssh -T aur@aur.archlinux.org
Welcome to AUR, gromit! Interactive shell is disabled.
Try `ssh aur@aur.archlinux.org help` for a list of commands.

Where (geographically) are you trying to connect from to the AUR?

Could you please post your public IP address either here or to accountsupport@archlinux.org?
Also are you trying to connect from a proxy network?

KevinCrrl · 2025-12-06 17:53:53

Yes, every time I try, the error occurs. I'm in Colombia, and I'm not using a proxy to connect, but if I do use one, it lets me connect:

$ proxychains4 ssh -T aur@aur.archlinux.org
[proxychains] config file found: /etc/proxychains.conf
[proxychains] preloading /usr/lib/libproxychains4.so
[proxychains] DLL init: proxychains-ng 4.17
[proxychains] Strict chain  ...  127.0.0.1:9050  ...  aur.archlinux.org:22  ...  OK
Welcome to AUR, KevinCrrl! Interactive shell is disabled.
Try `ssh aur@aur.archlinux.org help` for a list of commands.

I will then send my IP address to the email you mentioned...

OpenSourceGuy · 2025-12-06 22:23:57

A similar issue happened on my PC.
Here:

╭────  128 01:11:06
╰──── ⬤ ssh -T aur@aur.archlinux.org -vvv                                                                                                                                       ⬤ 01:11:06
debug1: OpenSSH_10.2p1, OpenSSL 3.6.0 1 Oct 2025
debug3: Running on Linux 6.17.9-zen1-1-zen #1 ZEN SMP PREEMPT_DYNAMIC Mon, 24 Nov 2025 15:21:16 +0000 x86_64
debug3: Started with: ssh -T aur@aur.archlinux.org -vvv
debug1: Reading configuration data /home/sd-v/.ssh/config
debug1: /home/sd-v/.ssh/config line 1: Applying options for aur.archlinux.org
debug1: Reading configuration data /etc/ssh/ssh_config
debug3: /etc/ssh/ssh_config line 2: Including file /etc/ssh/ssh_config.d/20-systemd-ssh-proxy.conf depth 0
debug1: Reading configuration data /etc/ssh/ssh_config.d/20-systemd-ssh-proxy.conf
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/home/sd-v/.ssh/known_hosts'
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/home/sd-v/.ssh/known_hosts2'
debug2: resolving "aur.archlinux.org" port 22
debug3: resolve_host: lookup aur.archlinux.org:22
debug3: channel_clear_timeouts: clearing
debug3: ssh_connect_direct: entering
debug1: Connecting to aur.archlinux.org [209.126.35.78] port 22.
debug3: set_sock_tos: set socket 3 IP_TOS 0xb8
debug1: Connection established.
debug1: no pubkey loaded from /home/sd-v/.ssh/id_rsa
debug1: identity file /home/sd-v/.ssh/id_rsa type -1
debug1: no identity pubkey loaded from /home/sd-v/.ssh/id_rsa
debug1: no pubkey loaded from /home/sd-v/.ssh/id_ecdsa
debug1: identity file /home/sd-v/.ssh/id_ecdsa type -1
debug1: no identity pubkey loaded from /home/sd-v/.ssh/id_ecdsa
debug1: no pubkey loaded from /home/sd-v/.ssh/id_ecdsa_sk
debug1: identity file /home/sd-v/.ssh/id_ecdsa_sk type -1
debug1: no identity pubkey loaded from /home/sd-v/.ssh/id_ecdsa_sk
debug1: loaded pubkey from /home/sd-v/.ssh/id_ed25519: ED25519 SHA256:J/VJG253Zs7Soc0DWER+55K7oUlOTdwToBH5TJqPeEA
debug1: identity file /home/sd-v/.ssh/id_ed25519 type 2
debug1: no identity pubkey loaded from /home/sd-v/.ssh/id_ed25519
debug1: no pubkey loaded from /home/sd-v/.ssh/id_ed25519_sk
debug1: identity file /home/sd-v/.ssh/id_ed25519_sk type -1
debug1: no identity pubkey loaded from /home/sd-v/.ssh/id_ed25519_sk
debug1: Local version string SSH-2.0-OpenSSH_10.2
debug1: Remote protocol version 2.0, remote software version OpenSSH_10.2
debug1: compat_banner: match: OpenSSH_10.2 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to aur.archlinux.org:22 as 'aur'
debug3: record_hostkey: found key type ED25519 in file /home/sd-v/.ssh/known_hosts:2
debug3: record_hostkey: found key type RSA in file /home/sd-v/.ssh/known_hosts:3
debug3: record_hostkey: found key type ECDSA in file /home/sd-v/.ssh/known_hosts:4
debug3: load_hostkeys_file: loaded 3 keys from aur.archlinux.org
debug1: load_hostkeys: fopen /home/sd-v/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug3: order_hostkeyalgs: have matching best-preference key type ssh-ed25519-cert-v01@openssh.com, using HostkeyAlgorithms verbatim
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
Bad packet length 1231976033.
debug2: sshpkt_disconnect: sending SSH2_MSG_DISCONNECT: Packet corrupt
debug3: send packet: type 1
ssh_dispatch_run_fatal: Connection to 209.126.35.78 port 22: message authentication code incorrect

It works with proxychains but doesn't work with stuff like CloudFlare warp.

Last edited by OpenSourceGuy (2025-12-06 22:24:51)

gromit · 2025-12-06 23:52:46

@OpenSourceGuy where are you trying to connect from?

seth · 2025-12-07 09:54:01

In case there's no reply anymore and from the posts timestamp and content: https://de.wikipedia.org/wiki/UTC%2B3

OpenSourceGuy · 2025-12-07 21:04:37

gromit wrote:

@OpenSourceGuy where are you trying to connect from?

I'm connecting from Turkiye.

gromit · 2025-12-07 23:21:53

Hm, that is really odd .. I'll look into reproducing it and will get in touch with our service provider!

gromit · 2025-12-08 19:20:30

Does this problem still persist or has it been solved in the meantime for you @OpenSourceGuy& @KevinCrrl?

Our provider has fixed an issue on their end, so there is a good chance that it just works now! For us it would be good to know whether their change also resolved their issue!

KevinCrrl · 2025-12-08 21:53:01

Yes, I recently tested it and it's working correctly now, thanks @gromit

OpenSourceGuy · 2025-12-11 15:33:48

gromit wrote:

Does this problem still persist or has it been solved in the meantime for you @OpenSourceGuy& @KevinCrrl?
Our provider has fixed an issue on their end, so there is a good chance that it just works now! For us it would be good to know whether their change also resolved their issue!

Yup. Working pretty well rn.
Thanks for the maintenance.

Arch Linux

#1 2025-12-06 17:29:20

[SOLVED] SSH error while trying to connect to the AUR

#2 2025-12-06 17:37:51

Re: [SOLVED] SSH error while trying to connect to the AUR

#3 2025-12-06 17:53:53

Re: [SOLVED] SSH error while trying to connect to the AUR

#4 2025-12-06 22:23:57

Re: [SOLVED] SSH error while trying to connect to the AUR

#5 2025-12-06 23:52:46

Re: [SOLVED] SSH error while trying to connect to the AUR

#6 2025-12-07 09:54:01

Re: [SOLVED] SSH error while trying to connect to the AUR

#7 2025-12-07 21:04:37

Re: [SOLVED] SSH error while trying to connect to the AUR

#8 2025-12-07 23:21:53

Re: [SOLVED] SSH error while trying to connect to the AUR

#9 2025-12-08 19:20:30

Re: [SOLVED] SSH error while trying to connect to the AUR

#10 2025-12-08 21:53:01

Re: [SOLVED] SSH error while trying to connect to the AUR

#11 2025-12-11 15:33:48

Re: [SOLVED] SSH error while trying to connect to the AUR

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