Xutho

I´ve managed to get it working again.... Somehow Wireguard didn´t run correctly on that Backup-Machine. So i deleted all of the config and created a whole new profile in Wireguard for that machine (but same IP) After i established my connection SSH was working fine.... strange behaviour that only SSH was kinde screwed up but nevermind ... it works again @JorgeB thanks for that quick reply i´ve learned again something new for future "ssh root@ip -vvv" never saw that paramenter for debugging Edit: I´ve found the exact issue! There seems to be a dependency with my MTU Value - I set it to 1440 and the issue was reproducable - after setting it back to AUTO the issue with SSH from Unraid-Server was gone. Hopefully this helps someone in future

Hi Jorge it stucks at "debug1: expecting SSH2_MSG_KEX_ECDH_REPLY" and after ~30 sec´s the connection will be closed. root@Xutho-Unraid:~# ssh [email protected] -vvv OpenSSH_9.1p1, OpenSSL 1.1.1s 1 Nov 2022 debug1: Reading configuration data /root/.ssh/config debug1: Reading configuration data /etc/ssh/ssh_config debug2: resolve_canonicalize: hostname 10.6.0.3 is address debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/root/.ssh/known_hosts' debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/root/.ssh/known_hosts2' debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling debug3: ssh_connect_direct: entering debug1: Connecting to 10.6.0.3 [10.6.0.3] port 22. debug3: set_sock_tos: set socket 3 IP_TOS 0x48 debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type 0 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.1 debug1: Remote protocol version 2.0, remote software version OpenSSH_9.1 debug1: compat_banner: match: OpenSSH_9.1 pat OpenSSH* compat 0x04000000 debug2: fd 3 setting O_NONBLOCK debug1: Authenticating to 10.6.0.3:22 as 'root' debug3: record_hostkey: found key type ECDSA in file /root/.ssh/known_hosts:1 debug3: load_hostkeys_file: loaded 1 keys from 10.6.0.3 debug1: load_hostkeys: fopen /root/.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: prefer hostkeyalgs: [email protected],ecdsa-sha2-nistp256 debug3: send packet: type 20 debug1: SSH2_MSG_KEXINIT sent debug3: receive packet: type 20 debug1: SSH2_MSG_KEXINIT received debug2: local client KEXINIT proposal debug2: KEX algorithms: [email protected],curve25519-sha256,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,ext-info-c debug2: host key algorithms: [email protected],ecdsa-sha2-nistp256,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],ssh-ed25519,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],rsa-sha2-512,rsa-sha2-256 debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected] debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected] debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none,[email protected],zlib debug2: compression stoc: none,[email protected],zlib debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug2: peer server KEXINIT proposal debug2: KEX algorithms: [email protected],curve25519-sha256,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256 debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519 debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected] debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected] debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none,[email protected] debug2: compression stoc: none,[email protected] debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug1: kex: algorithm: [email protected] debug1: kex: host key algorithm: ecdsa-sha2-nistp256 debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none debug3: send packet: type 30 debug1: expecting SSH2_MSG_KEX_ECDH_REPLY Connection closed by 10.6.0.3 port 22 root@Xutho-Unraid:~#

Hi folks, maybe you can give me a hint.. i´ve a strange issue with SSH. I´ve 2 Unraid Systems up and running Live-System and Backup System Backup System is connected via Wiregurad to my opnsense Router (successfully i have fully access to that machine) Last years i made backups with rsync to that Backup system on a daily basis. But somehow now rsync has connection problems rsync -avzse "ssh -i /root/.ssh/siteA-rsync-key" --bwlimit=50000 --delete /mnt/user/Backup/ [email protected]:/mnt/user/Data/Xutho-Unraid/Backup/ Connection closed by 10.6.0.3 port 22 rsync: connection unexpectedly closed (0 bytes received so far) [sender] rsync error: unexplained error (code 255) at io.c(231) [sender=3.2.7] as well if i try from my live-system to open a SSH connection root@Xutho-Unraid:~/.ssh# ssh [email protected] Connection closed by 10.6.0.3 port 22 root@Xutho-Unraid:~/.ssh# But i can see that try on my Backup-System: Feb 25 20:08:31 Xutho-Backup sshd[4935]: Connection from 192.168.178.100 port 58776 on 10.6.0.3 port 22 rdomain "" Feb 25 20:09:02 Xutho-Backup flash_backup: adding task: /usr/local/emhttp/plugins/dynamix.my.servers/scripts/UpdateFlashBackup update Feb 25 20:10:02 Xutho-Backup flash_backup: adding task: /usr/local/emhttp/plugins/dynamix.my.servers/scripts/UpdateFlashBackup update Feb 25 20:10:31 Xutho-Backup sshd[4935]: fatal: Timeout before authentication for 192.168.178.100 port 58776 Funny thing: all my clients on the same network as my Live-System can flawless connect via SSH to Backup-System except my Live-System...... Is there any kind of blacklist? Is maybe my Live-System kinda locked out?

Fully worked everything fine now !!! Thanks a lot buddy

Thanks mount -o degraded,rescue=all,ro /dev/nvme0n1p1 /temp worked successfully getting the data back!! Afterwards fully format for cache devices i assume right? (is btrfs still the first-choice as fs?)

Dear folks, unfortunately my server decided this night to crash both of his cache-ssd´s and i have no clue how this gonna happen.... both of my ssd´s are unmountable... Restart ect. didn´t work but i´m a little carefully about the next steps - i found in forum already several articles but mostly they had only 1 cache drive and did a format-disc .. but 2 devices aren´t readable in the same time is kinda strange? So maybe someone has an idea whats going on... I did no changes on the system which can caused that issue - but! it happens during my nightly backup-process excatly when "VM-Backup" was trying to backup my first VM exactly before this process starts i have "AppData Backup/Restore V2" running for Docker-Backup If its necassary i have my backups but would be a lot of "manual" work to get all that stuff in place again.... maybe there is a easier fix? Thanks ❤️ xutho-unraid-diagnostics-20221003-1843.zip

Dear folks, today i changed my root password to one which contains the "paragraph symbol" --> § Now i can´t login anymore also ssh login isnt possible with the old or the new password.... seems to be unraid can´t handle this symbol. Did someone had something like this? or else i have to do the password reset by usb-stick and edit the file Edit: did the password reset - now im able to login again

So now after nothing worked well even rsync to this server i used the downgrade to 6.8.3. immediately after reboot all is working fine shares are working also export diagnostic settings. So i did the upgrade to 6.9.0 again and now all is working? It seems the first update was going totally wrong. xutho-backup-backto-6-8-3.zipxutho-backup-6.9.0.zip

Hi @ all i´ve upgraded my secondary backup-server from 6.8.3 to 6.9.0 After Upgrading i noticed i cant access any smb-share even if i make it public i cant access it.... In 6.8.3 --> public --> access successfull I noticed strange messages in the live-log if i try to access via \\ip Mar 6 23:13:05 Xutho-Backup smbd[14605]: chdir_current_service: vfs_ChDir(/tmp) failed: Permission denied. Current token: uid=99, gid=100, 5 groups: 100 98 3003 3004 3002 Mar 6 23:13:11 Xutho-Backup smbd[14605]: [2021/03/06 22:13:11.876654, 0] ../../source3/smbd/service.c:168(chdir_current_service) Mar 6 23:13:11 Xutho-Backup smbd[14605]: chdir_current_service: vfs_ChDir(/tmp) failed: Permission denied. Current token: uid=99, gid=100, 5 groups: 100 98 3003 3004 3002 Mar 6 23:13:11 Xutho-Backup smbd[14605]: [2021/03/06 22:13:11.876809, 0] ../../source3/smbd/service.c:180(chdir_current_service) Mar 6 23:13:11 Xutho-Backup smbd[14605]: chdir_current_service: vfs_ChDir(/tmp) failed: Permission denied. Current token: uid=99, gid=100, 5 groups: 100 98 3003 3004 3002 Mar 6 23:13:36 Xutho-Backup smbd[14605]: [2021/03/06 22:13:36.796160, 0] ../../source3/smbd/service.c:168(chdir_current_service) Mar 6 23:13:36 Xutho-Backup smbd[14605]: chdir_current_service: vfs_ChDir(/tmp) failed: Permission denied. Current token: uid=99, gid=100, 5 groups: 100 98 3003 3004 3002 Mar 6 23:13:36 Xutho-Backup smbd[14605]: [2021/03/06 22:13:36.796357, 0] ../../source3/smbd/service.c:180(chdir_current_service) Mar 6 23:13:36 Xutho-Backup smbd[14605]: chdir_current_service: vfs_ChDir(/tmp) failed: Permission denied. Current token: uid=99, gid=100, 5 groups: 100 98 3003 3004 3002 Mar 6 23:13:36 Xutho-Backup smbd[14605]: [2021/03/06 22:13:36.798325, 0] ../../source3/smbd/service.c:168(chdir_current_service) Mar 6 23:13:36 Xutho-Backup smbd[14605]: chdir_current_service: vfs_ChDir(/tmp) failed: Permission denied. Current token: uid=99, gid=100, 5 groups: 100 98 3003 3004 3002 Mar 6 23:13:36 Xutho-Backup smbd[14605]: [2021/03/06 22:13:36.798539, 0] ../../source3/smbd/service.c:180(chdir_current_service) Mar 6 23:13:36 Xutho-Backup smbd[14605]: chdir_current_service: vfs_ChDir(/tmp) failed: Permission denied. Current token: uid=99, gid=100, 5 groups: 100 98 3003 3004 3002 Mar 6 23:13:38 Xutho-Backup smbd[14605]: [2021/03/06 22:13:38.856489, 0] ../../source3/smbd/service.c:168(chdir_current_service) Mar 6 23:13:38 Xutho-Backup smbd[14605]: chdir_current_service: vfs_ChDir(/tmp) failed: Permission denied. Current token: uid=99, gid=100, 5 groups: 100 98 3003 3004 3002 Mar 6 23:13:38 Xutho-Backup smbd[14605]: [2021/03/06 22:13:38.856658, 0] ../../source3/smbd/service.c:180(chdir_current_service) Mar 6 23:13:38 Xutho-Backup smbd[14605]: chdir_current_service: vfs_ChDir(/tmp) failed: Permission denied. Current token: uid=99, gid=100, 5 groups: 100 98 3003 3004 3002 Maybe im missing something.... Even if i try to create diagnostics it seems to be stuck :X even after 15 minutes