Displaying 20 results from an estimated 10000 matches similar to: "fail2ban problem on shutdown"
2012 Mar 18
2
Fail2ban problem
If there is a serious power failure, eg during an electric storm,
and the internet goes down
then my CentOS-6.2 server seems to take an inordinate time, maybe forever,
to get past fail2ban.
It is as though there is an extremely long - maybe an hour - timeout
if fail2ban cannot connect to the internet.
(I usually stop the machine with the power-button,
re-boot into a different OS (Fedora) and
2012 Jan 05
0
fail2ban won't die
If I lose my broadband connection here (Italy),
and try to re-boot the computer (CentOS-6.2),
the shutdown hangs at fail2ban.
Normally there is no problem re-booting;
it only happens if the network has gone down.
It may just be an extraordinarily long timeout.
Has anyone experienced this?
And is there anything one can do about it?
--
Timothy Murphy
e-mail: gayleard /at/ eircom.net
tel:
2010 Sep 21
1
Logwatch verbosity
I'm getting literally hundreds of lines in my daily logwatch
(under Centos-5.5), reading
---------------------------------------
NULL security context for user, but SELinux in permissive mode,
continuing ()
---------------------------------------
These began when I started running fail2ban (with shorewall),
though that is probably a coincidence.
In any case, what does this line mean,
and
2013 Jul 07
1
spamassassin with postfix/dovecot
I'm trying to install spamassassin on a postfix/dovecot server,
running CentOS-6.4, following the instructions at
<http://wiki.centos.org/HowTos/Amavisd>.
I think I have taken all the steps indicated,
and the configuration seems to pass the tests suggested,
although the response is much more sparse than that described:
------------------------
[tim at alfred ~]$ telnet localhost 10024
2011 Apr 24
2
Attaching LinkSys WRT54GL to CentOS machine
I have a LinkSys WRT54GL router,
which I would like to attach to my CentOS-5.6 server,
to set up a LAN 192.168.2.* .
The server is attached to the internet
through a Billion modem/router which has a single ethernet outlet.
The instructions for the LinkSys router
assume that it is being attached directly to an ADSL modem.
But for various reasons I want everything to go through my server.
I wonder
2011 Dec 04
2
Strangely slow disk
I have a 1.5TB Western Digital hard disk (WD15EADS-00R6B0)
on my CentOS-5.7 server, which has become incredibly slow
for some operations, eg rsync, BackupPC archive, e2fsck,
although it seems to work fine for ordinary file operations,
and "smartctl -a /dev/sdb" does not report any errors.
For example, running "e2fsck -p /dev/sdb5" on a 250GB partition
on this disk took over 24
2011 Jul 19
2
NM on a server?
Is there any point in running NetworkManager on a server?
The IP addresses of the two server NICS are fixed
(192.168.1.2 and 192.168.2.2 .)
I'm not clear if it is necessary in some way
to run NM on a CentOS system?
--
Timothy Murphy
e-mail: gayleard /at/ eircom.net
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland
2012 Jan 11
1
Is avahi essential?
I've been getting a few avahi-daemon errors in /var/log/messages, eg
-------------------------------
Jan 11 00:40:24 helen avahi-daemon[12732]: Invalid query packet.
Jan 11 00:40:29 helen last message repeated 17 times
-------------------------------
(This is
2011 Jul 19
1
2 questions on CentOS firewall
I'm running CentOS-6 on an HP MicroServer
with a Billion 5200S modem/router connecting to the internet.
I'm running the standard CentOS-6 firewall on the server.
(1) I can open port 22 on the Billion, allowing me to ssh in from outside.
But for some reason I cannot ping the same address from outside.
(I can ping it internally.)
Why is this?
I'm not sure if the problem lies with the
2009 Nov 14
3
stunbdc
Does anyone know if the program stunbdc,
which prints one's IP address,
is available in CentOS-5?
It comes with the libnice package in Fedora-11.
------------------------------
[tim at rose ~]$ stunbdc -4 stun.ekiga.net
Server address: 75.101.138.128 port 3478
STUN transaction started (timeout 600ms).
STUN unknown: 0 mandatory attribute(s)!
Received 88-bytes STUN message
No
2011 Jul 13
2
Problem with AT&T VPN
I'm running a CentOS-5.6 server,
which in general runs perfectly.
My setting is possibly a little unusual:
ADSL -> Billion 5200S RC modem/router -> CentOS-5.6 HP MicroServer
-> Linksys WRT54GL router .
My daughter is just visiting me,
and she has to contact her job using AT&T VPN
on her laptop under Windows XP.
Unfortunately this does not work on my system
when connected to
2011 Sep 23
4
CentOS-6 by PXEboot?
Has anyone succeeded in installing CentOS-6.0 by PXEboot.
If so, would you say how you did it, please.
I tried (on an HP MicroServer),
but gave up in the end and used a USB stick installation instead.
But I'd be very interested to know how to do it, for the future.
Unfortunately I didn't keep a proper note of my PXEboot attempt,
but IIRC the problem was that install.img was not found,
2009 Oct 17
1
Samba/BackupPC under CentOS-5.3
I'm almost completely ignorant about samba on Windows machines,
In particular I know nothing about Windows permissions,
if that is relevant here.
I am running BackupPC on a CentOS-5.3 machine.
It works perfectly for backing up Linux folders,
but I have great difficulty extending it to Windows clients.
To be precise, I have a share called "EA Games D"
on a machine running Windows XP
2013 Jul 05
1
postfix + amavisd-new
I've been following the instrunctions in
<http://wiki.centos.org/HowTos/Amavisd>
for installing Amavisd, Clamav and SpamAssassin
on top of postfix/dovecot .
Dovecot is working fine,
but I want to deal with spam email.
(I am using sendmail/dovecot with procmail and spamassassin
on another server, but decided to go over to postfix
on this server when I saw it is now the CentOS default.)
2011 Mar 26
3
My new server
I bought a very cheap server yesterday -
an HP ProLiant micro server for 160 euro
(280 euro with 120 cashback, for some reason).
But I was surprised when I opened the box
to find it didn't come with keyboard or mouse,
and doesn't have the old keyboard/mouse sockets,
but requires USB versions.
Is that the norm nowadays?
Is it possible to convert the old keyboard/mouse plugs?
Also there is
2012 Jan 28
1
Turn off fetchmail warning?
Is there any way of turning off the fetchmail warning
----------------------------------
fetchmail: Warning: the connection is insecure, continuing anyways.
(Better use --sslcertck!)
----------------------------------
which I get when fetching imap mail from my college department?
I know they should get a root certificate,
but I'm told they are looking into it,
but that could take forever.
2011 Sep 06
1
Radeon driver under CentOS-6
I wonder if anyone has CentOS-6 working on an HP MicroServer?
I'm having a problem with the graphics driver
for the Radeon HD 4200 graphics card.
CentOS-5.6 is working fine on this machine;
but at present I only have CentOS-6 running in text mode.
The graphics card as given by "/sbin/lspci -m" is
-------------------------------
01:05.0 "VGA compatible controller"
2012 Mar 03
4
Dovecot GUI
Is there a web-interface to dovecot under CentOS-6?
I want to create a top-level folder
(ie at the same level as Inbox)
but this doesn't seem to be possible
from KMail running on a remote Fedora-6 laptop.
I was browsing through the dovecot wiki,
and I saw some pictures which seemed to be from a dovecot GUI,
but I could not find the name of this program.
Alternatively, can I simply create
2012 Jan 25
2
Problem with procmail
I'm trying to setup email on a new server running CentOS-6.2 (x86_64),
but for some reason email is going to /var/spool/mail/
despite the fact that my .procmailrc starts
-------------------------------
DEFAULT=/var/spool/mail
MAILDIR=/home/tim/Maildir/
SHELL=/bin/sh
DROPPRIVS=yes
-------------------------------
and I have
-------------------------------
MAILER(smtp)dnl
MAILER(procmail)dnl
2010 Sep 08
4
Interpreting logwatch
Every few days I see in the logwatch on my Centos-5.5 web-server
what seems like a rather feeble break-in attempt.
Eg today I see
---------------------------
403 Forbidden
/phpMyAdmin/scripts/setup.php: 2 Time(s)
/phpmyadmin/scripts/setup.php: 2 Time(s)
404 Not Found
/PMA2005/scripts/setup.php: 1 Time(s)
/TRAD_files/datestamp.js: 1 Time(s)
...