I need to access some Linux server behind NAT (no ports forwarded), so I need to have something like "phone home" like Teamviewer has. There is no GUI, but somebody can log in through SSH and dictate a password if it is changing (like Teamviewer). SSH (port 22) is enough (I can tunnel ports through SSH if I need). Any suggestions? How safe is it?
Someting has broken and I lost a connection with storage on first server. Second server had access to that FS. I tried to restart GFS by service lock_gulmd, gfs, pool, ccsd stop/start (in various orders) but no luck. On master server (the third one) "gulm_tool nodelist localhost"
" says
Name: srv1
state = Expired
mode = Slave
missed beats = 0
last beat = 0
delay avg = 0
max delay = 0
I found that it needs to be fenced? Automatically or manually? Anyone can help? At the moment, none of the hosts is writing anything to the FS, so no harm could be done, I presume. Second host is also expired at the moment and can't start lock_gulmd.