16 Jan
2019
16 Jan
'19
6:55 a.m.
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
---
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(a)srv.dread.cz
ssh: connect to host srv.dread.cz port 22: Connection refused
jdrozd@jdrozd-MS-7592:~$ ssh xxx(a)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