Analyzing Debian System freeze - blank logs [closed]

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
0
down vote

favorite












Running Debian 7.8 sometimes (once per 14 days or so) my server freezes completely and need to be manually rebooted.



There is nothing in logs, from the actual freeze until restart all logs are blank, like nothing is happening during the freeze at all. Cannot see anything unusual in logs before the freeze.



Any ideas how to proceed to identify the source of the problem that is causing system to freeze ?



I cannot connect to any service on the server (SSH, FTP, HTTP) so I have no idea what is happening.






debian reboot freeze crash







share|improve this question















closed as too broad by Rui F Ribeiro, Jeff Schaller, Christopher, thrig, Stephen Kitt Nov 28 at 20:45


Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.














  • What freezes exactly? Is it only your visual on the monitor? Have you tried changing the TTY (CTRL+ALT+[1-9]) or connecting via SSH from a different host?
    – Peschke
    Nov 28 at 16:49










  • Please note that Debian 7 reached end of life earlier this year, you should not run this in production.
    – maulinglawns
    Nov 28 at 17:04














up vote
0
down vote

favorite












Running Debian 7.8 sometimes (once per 14 days or so) my server freezes completely and need to be manually rebooted.



There is nothing in logs, from the actual freeze until restart all logs are blank, like nothing is happening during the freeze at all. Cannot see anything unusual in logs before the freeze.



Any ideas how to proceed to identify the source of the problem that is causing system to freeze ?



I cannot connect to any service on the server (SSH, FTP, HTTP) so I have no idea what is happening.






debian reboot freeze crash







share|improve this question















closed as too broad by Rui F Ribeiro, Jeff Schaller, Christopher, thrig, Stephen Kitt Nov 28 at 20:45


Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.














  • What freezes exactly? Is it only your visual on the monitor? Have you tried changing the TTY (CTRL+ALT+[1-9]) or connecting via SSH from a different host?
    – Peschke
    Nov 28 at 16:49










  • Please note that Debian 7 reached end of life earlier this year, you should not run this in production.
    – maulinglawns
    Nov 28 at 17:04












up vote
0
down vote

favorite









up vote
0
down vote

favorite











Running Debian 7.8 sometimes (once per 14 days or so) my server freezes completely and need to be manually rebooted.



There is nothing in logs, from the actual freeze until restart all logs are blank, like nothing is happening during the freeze at all. Cannot see anything unusual in logs before the freeze.



Any ideas how to proceed to identify the source of the problem that is causing system to freeze ?



I cannot connect to any service on the server (SSH, FTP, HTTP) so I have no idea what is happening.






debian reboot freeze crash







share|improve this question















Running Debian 7.8 sometimes (once per 14 days or so) my server freezes completely and need to be manually rebooted.



There is nothing in logs, from the actual freeze until restart all logs are blank, like nothing is happening during the freeze at all. Cannot see anything unusual in logs before the freeze.



Any ideas how to proceed to identify the source of the problem that is causing system to freeze ?



I cannot connect to any service on the server (SSH, FTP, HTTP) so I have no idea what is happening.






debian reboot freeze crash




debian reboot freeze crash






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 28 at 19:07









Community♦

1




1










asked Nov 28 at 16:32









Dakado

1




1




closed as too broad by Rui F Ribeiro, Jeff Schaller, Christopher, thrig, Stephen Kitt Nov 28 at 20:45


Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.






closed as too broad by Rui F Ribeiro, Jeff Schaller, Christopher, thrig, Stephen Kitt Nov 28 at 20:45


Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.













  • What freezes exactly? Is it only your visual on the monitor? Have you tried changing the TTY (CTRL+ALT+[1-9]) or connecting via SSH from a different host?
    – Peschke
    Nov 28 at 16:49










  • Please note that Debian 7 reached end of life earlier this year, you should not run this in production.
    – maulinglawns
    Nov 28 at 17:04
















  • What freezes exactly? Is it only your visual on the monitor? Have you tried changing the TTY (CTRL+ALT+[1-9]) or connecting via SSH from a different host?
    – Peschke
    Nov 28 at 16:49










  • Please note that Debian 7 reached end of life earlier this year, you should not run this in production.
    – maulinglawns
    Nov 28 at 17:04















What freezes exactly? Is it only your visual on the monitor? Have you tried changing the TTY (CTRL+ALT+[1-9]) or connecting via SSH from a different host?
– Peschke
Nov 28 at 16:49




What freezes exactly? Is it only your visual on the monitor? Have you tried changing the TTY (CTRL+ALT+[1-9]) or connecting via SSH from a different host?
– Peschke
Nov 28 at 16:49












Please note that Debian 7 reached end of life earlier this year, you should not run this in production.
– maulinglawns
Nov 28 at 17:04




Please note that Debian 7 reached end of life earlier this year, you should not run this in production.
– maulinglawns
Nov 28 at 17:04















active

oldest

votes






















active

oldest

votes













active

oldest

votes









active

oldest

votes






active

oldest

votes
-

Popular posts from this blog

How to check contact read email or not when send email to Individual?

Image
Clash Royale CLAN TAG #URR8PPP up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Sep 26 at 0:12 ToanLuong 49 9 add a comment  |  up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Se
Read more

Bahrain

Image
For other uses, see Bahrain (disambiguation). Sovereign island state in the Persian Gulf Kingdom of Bahrain مملكة البحرين   (Arabic) Mamlakat al-Baḥrayn Flag Coat of arms Anthem:  نشيد البحرين الوطني Bahrainona Our Bahrain Location of   Bahrain    (circled in red) Capital and largest city Manama 26°13′N 50°35′E  /  26.217°N 50.583°E  / 26.217; 50.583 Official languages Arabic Ethnic groups (2010 [1] ) 50.7% Arab (46% Bahrani, 4.7% other Arabs) 45.5% Asian 1% European 1.2% Others Religion Islam Demonym(s) Bahraini Government Unitary constitutional monarchy • King Hamad bin Isa Al Khalifa • Crown Prince Salman bin Hamad bin Isa Al Khalifa • Prime Minister Khalifa bin Salman Al Khalifa Legislature National Assembly • Upper house Consultative Council • Lower house Council of Representatives Independence • Declared Independence [2] 14 August 1971 • from United Kingdom [1] 15 August 1971 • Admitted to the United Nations 21 September 1971 • Kingdom of Bahrain 14 February 2002
Read more

Postfix configuration issue with fips on centos 7; mailgun relay

Image
Clash Royale CLAN TAG #URR8PPP up vote 0 down vote favorite I am trying to setup postfix to relay all mail generated on the local machine via SMTP to a mailgun relay. I have used the mailgun relay before with success on an ubuntu server, but I am migrating to a Centos 7 server which I will be running in FIPS mode. There error log is below, slightly sanitized. I have a small enough network that I choose to have each machine reach out to mailgun individually (this the loopback-only, 127.0.0.0/8 restrictions) and no firewall open port allowing smtp in to the machine. I assume the FIPS mode (and with it disabling of MD5) is causing problems, but I don't know how to overcome it or if it is even possible for tls_fprint to use some supported hash such as sha256 or sha512. However, the relay=none is slightly concerning since I have relayhost set, but perhaps that is because the smtp process is failing? Any help would be appreciated! postconf -n: alias_database = hash:/etc/alia
Read more