Hello again,
Should I just increase kern.maxclusters and see if the problem goes
away or are developers interested in me doing some other tests? How
much
should I increase maxclusters?
Increasing kern.maxclusters to 18432 didn't fix the problem, system
hanged up after 2 weeks uptime again.
"none of TCP services respond" - please expand on this: if you try and
connect to a listening port, does it totally fail to respond, i.e.:
$ telnet $somehost 25
Trying $somehost...
<< big pause >>
telnet: connect to address $somehost: Connection timed out
Or, does it connect but you get no connection banner / response, i.e.
$ telnet $somehost 25
Trying $somehost...
Connected to $somehost.
Escape character is '^]'.
<< just sits there >>
(Look at a couple of different ports and see if there's any difference
-
some daemons fork a new process to answer a request, some don't).
Scanning hostname.domain.lv (XX.YY.ZZ.157) [1000 ports]
Discovered open port 587/tcp on XX.YY.ZZ.157
Discovered open port 53/tcp on XX.YY.ZZ.157
Discovered open port 143/tcp on XX.YY.ZZ.157
Discovered open port 995/tcp on XX.YY.ZZ.157
Discovered open port 993/tcp on XX.YY.ZZ.157
Discovered open port 22/tcp on XX.YY.ZZ.157
Discovered open port 443/tcp on XX.YY.ZZ.157
Discovered open port 465/tcp on XX.YY.ZZ.157
Completed Connect Scan at 09:57, 4.73s elapsed (1000 total ports)
Nmap scan report for hostname.domain.lv (XX.YY.ZZ.157)
Host is up (0.0058s latency).
Scanned at 2013-08-31 09:56:54 EEST for 6s
Not shown: 992 filtered ports
PORT STATE SERVICE
22/tcp open ssh
53/tcp open domain
143/tcp open imap
443/tcp open https
465/tcp open smtps
587/tcp open submission
993/tcp open imaps
995/tcp open pop3s
Read data files from: /usr/local/share/nmap
Nmap done: 1 IP address (1 host up) scanned in 6.27 seconds
$ date; telnet XX.YY.ZZ.157 143; date
Sat Aug 31 09:59:57 EEST 2013
Trying XX.YY.ZZ.157...
Connected to XX.YY.ZZ.157.
Escape character is '^]'.
$ date; ssh -v hostname; date
Sat Aug 31 09:57:53 EEST 2013
OpenSSH_6.2, OpenSSL 1.0.1c 10 May 2012
debug1: Reading configuration data /home/username/.ssh/config
debug1: /home/username/.ssh/config line 72: Applying options for
hostname
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Connecting to hostname.domain.lv [XX.YY.ZZ.157] port 22.
debug1: Connection established.
debug1: identity file /home/username/.ssh/t1 type 1
debug1: identity file /home/username/.ssh/t1-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.2
ssh_exchange_identification: read: Connection timed out
Sat Aug 31 14:09:09 EEST 2013
$ host www.domain.lv XX.YY.ZZ.157
;; connection timed out; no servers could be reached
$ date; telnet XX.YY.ZZ.157 143; date
Sat Aug 31 09:59:57 EEST 2013
Trying XX.YY.ZZ.157...
Connected to XX.YY.ZZ.157.
Escape character is '^]'.
^C^]
telnet> Connection closed.
Sat Aug 31 14:34:18 EEST 2013
--- hostname.domain.lv ping statistics ---
62900 packets transmitted, 62897 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.487/0.830/110.194/1.332 ms
--
Karlis
