Klaus Parzinger
New Pleskian
Hi folks,
yesterday i upgraded my Plesk to Onyx and now i can`t login to any webmail service:
Horde: Error connecting to mail server.
I spent my last 5 hours in reading and trying several solutions. My status:
- Disabled IPv6 on hosts
- Disalbed IPv6 in dovecot config
- Checked Telnet --> Fail (later)
- Upgraded Distribution, Updated all packages to stable versions
on tcpdump:
Hosts
Telnet from my home location to the root (Hetzner)
I tried courier and dovecot.
On Dovecot i deactivated IPv6 (listen = *) and also its not shown up in netstat
and dovecot is listen on tcp
But I haven`t any idea or clue whats going on..... i really dont know... somebody can help?
Best
yesterday i upgraded my Plesk to Onyx and now i can`t login to any webmail service:
Horde: Error connecting to mail server.
I spent my last 5 hours in reading and trying several solutions. My status:
- Disabled IPv6 on hosts
- Disalbed IPv6 in dovecot config
- Checked Telnet --> Fail (later)
- Upgraded Distribution, Updated all packages to stable versions
Code:
root@kproot:/home/trauni# telnet localhost 143
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection timed out
on tcpdump:
Code:
tcpdump port 143 -v
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
21:09:07.032093 IP (tos 0x10, ttl 64, id 20153, offset 0, flags [DF], proto TCP (6), length 60)
kproot.traunisserver.de.56585 > localhost.imap2: Flags [S], cksum 0x103d (incorrect -> 0xfef7), seq 1930376439, win 14600, options [mss 1460,sackOK,TS val 293454 ecr 0,nop,wscale 7], length 0
21:09:08.031228 IP (tos 0x10, ttl 64, id 20154, offset 0, flags [DF], proto TCP (6), length 60)
kproot.traunisserver.de.56585 > localhost.imap2: Flags [S], cksum 0x103d (incorrect -> 0xfdfd), seq 1930376439, win 14600, options [mss 1460,sackOK,TS val 293704 ecr 0,nop,wscale 7], length 0
21:09:10.035221 IP (tos 0x10, ttl 64, id 20155, offset 0, flags [DF], proto TCP (6), length 60)
kproot.traunisserver.de.56585 > localhost.imap2: Flags [S], cksum 0x103d (incorrect -> 0xfc08), seq 1930376439, win 14600, options [mss 1460,sackOK,TS val 294205 ecr 0,nop,wscale 7], length 0
21:09:14.047294 IP (tos 0x10, ttl 64, id 20156, offset 0, flags [DF], proto TCP (6), length 60)
kproot.traunisserver.de.56585 > localhost.imap2: Flags [S], cksum 0x103d (incorrect -> 0xf81d), seq 1930376439, win 14600, options [mss 1460,sackOK,TS val 295208 ecr 0,nop,wscale 7], length 0
21:09:22.063223 IP (tos 0x10, ttl 64, id 20157, offset 0, flags [DF], proto TCP (6), length 60)
kproot.traunisserver.de.56585 > localhost.imap2: Flags [S], cksum 0x103d (incorrect -> 0xf049), seq 1930376439, win 14600, options [mss 1460,sackOK,TS val 297212 ecr 0,nop,wscale 7], length 0
21:09:38.079235 IP (tos 0x10, ttl 64, id 20158, offset 0, flags [DF], proto TCP (6), length 60)
kproot.traunisserver.de.56585 > localhost.imap2: Flags [S], cksum 0x103d (incorrect -> 0xe0a5), seq 1930376439, win 14600, options [mss 1460,sackOK,TS val 301216 ecr 0,nop,wscale 7], length 0
^C
6 packets captured
6 packets received by filter
0 packets dropped by kernel
Hosts
Code:
cat /etc/hosts
127.0.0.1 localhost localhost4
##::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
88.198.56.71 kproot.traunisserver.de kproot
Telnet from my home location to the root (Hetzner)
Code:
* OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA AUTH=CRAM-MD5 AUTH=CRAM-SHA1 AUTH=CRAM-SHA256 AUTH=PLAIN IDLE ACL ACL2=UNION STARTTLS] Courier-IMAP ready. Copyright 1998-2015 Double Precision, Inc. See COPYING for distribution information.
I tried courier and dovecot.
On Dovecot i deactivated IPv6 (listen = *) and also its not shown up in netstat
Code:
netstat -tulpen | egrep 'tcp6|udp6'
tcp6 0 0 :::37 :::* LISTEN 0 11181 4218/sshd
tcp6 0 0 :::106 :::* LISTEN 0 4713 3980/xinetd
tcp6 0 0 :::139 :::* LISTEN 0 10769 3066/smbd
tcp6 0 0 :::21 :::* LISTEN 0 4712 3980/xinetd
tcp6 0 0 :::53 :::* LISTEN 107 10707 2972/named
tcp6 0 0 :::445 :::* LISTEN 0 10767 3066/smbd
tcp6 0 0 :::8447 :::* LISTEN 0 12837 4866/autoinstaller
udp6 0 0 :::53 :::* 107 10706 2972/named
udp6 0 0 :::123 :::* 0 7623 3524/ntpd
and dovecot is listen on tcp
Code:
netstat -tulpen | egrep 'tcp|udp'
tcp 0 0 0.0.0.0:37 0.0.0.0:* LISTEN 0 11183 4218/sshd
tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 105 11005 3477/mysqld
tcp 0 0 0.0.0.0:587 0.0.0.0:* LISTEN 0 4716 3980/xinetd
tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN 0 10773 3066/smbd
tcp 0 0 0.0.0.0:110 0.0.0.0:* LISTEN 0 25601 9398/dovecot
tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN 0 25637 9398/dovecot
But I haven`t any idea or clue whats going on..... i really dont know... somebody can help?
Best