Ahoj,

od vypadku viz subj. mi na VPSce odmita startovat SSH a SCREEN - oboje ma problem s chybejicim adresarem ve /var/run, jede to na ubuntu 16.04

- sshd chybi /var/run/sshd a proto nenajede po restartu, musim rucne vytvorit /var/run/sshd a nastartovat sshd, nicmene po dalsim restartu adresar opet chybi a je nutno ho vytvorit znova

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root@bgrserver:~# systemctl status sshd                                     
● ssh.service - OpenBSD Secure Shell server
   Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: e
   Active: failed (Result: start-limit-hit) since Mon 2019-01-14 16:06:32 UTC
  Process: 376 ExecStartPre=/usr/sbin/sshd -t (code=exited, status=255)

xxx@bgrserver:~$ sudo cat /var/log/syslog | grep ssh
[sudo] password for xxx:
Jan 14 16:06:14 bgrserver systemd-tmpfiles[86]: Failed to validate path /var/run/sshd: Too many levels of symbolic links
Jan 14 16:06:31 bgrserver sshd[326]: Missing privilege separation directory: /var/run/sshd
Jan 14 16:06:31 bgrserver systemd[1]: ssh.service: Control process exited, code=exited status=255
Jan 14 16:06:31 bgrserver systemd[1]: ssh.service: Unit entered failed state.
Jan 14 16:06:31 bgrserver systemd[1]: ssh.service: Failed with result 'exit-code'.
Jan 14 16:06:31 bgrserver systemd[1]: ssh.service: Service hold-off time over, scheduling restart.
---

- screenu prozmenu chybi /var/run/screen a situace je stejna jako u sshd - po restartu je nutne rucne znova vytvorit a zmenit mod na 777, pak jede

---
xxx@bgrserver:~$ screen -S test
Cannot make directory '/var/run/screen': Permission denied

... screen nejede ...

xxx@bgrserver:~$ sudo mkdir /var/run/screen
[sudo] password for xxx:
xxx@bgrserver:~$ screen -S test
Directory '/var/run/screen' must have mode 777.
xxx@bgrserver:~$ sudo chmod 777 /var/run/screen
xxx@bgrserver:~$ screen -S test

... ted screen funguje, co po rebootu? ...

[detached from 7334.test]
xxx@bgrserver:~$
xxx@bgrserver:~$ sudo reboot
packet_write_wait: Connection to 37.205.11.73 port 22: Broken pipe

... ted je treba nahodit sshd pres VPSadmina, vytvorenim /var/run/sshd a restartem sshd, jinak connection refused ...

jdrozd@jdrozd-MS-7592:~$ ssh xxx@srv.dread.cz
ssh: connect to host srv.dread.cz port 22: Connection refused

jdrozd@jdrozd-MS-7592:~$ ssh xxx@srv.dread.cz
Welcome to Ubuntu 16.04.5 LTS (GNU/Linux 3.16.6-042stab134.43 x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage
Last login: Wed Jan 16 06:10:45 2019
xxx@bgrserver:~$ screen -S test
Cannot make directory '/var/run/screen': Permission denied

... po restartu je to o5 v ...

---

Pritom prava na /var/run potazmo /run kam se to symlinkuje jsou stejna jako na jine ubuntu 16.04 masine kde vse funguje.

---
xxx@bgrserver:~$ ll /var | grep run
lrwxrwxrwx  1 root root    9 lis 15  2016 lock -> /run/lock/
lrwxrwxrwx  1 root root    4 lis 15  2016 run -> /run/

xxx@bgrserver:~$ ll / | grep run
drwxr-xr-x  17 root root 560 led 16 06:11 run/
---

Nesetkal se nekdo z Vas s necim podobnym, nebo netusite kde by mohl byt problem?

Poslal sem to i na podporu VPSfree, protoze si nejsem jisty jestli se jedna o problem na jejich strane, nebo se mi rozbilo Ubuntu (i kdyz k tomu nemelo duvod)...

Diky - Buger
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