Weblogs for eric
Hi all, I'm looking for a syslog server to centralise our many (mainly Windows) servers. There seems to exists two real alternatives: rsyslog and syslog-ng. A comparison (from 2008) exists here: http://www.rsyslog.com/doc/rsyslog_ng_comparison.html but I prefer to ask here for real experience.
So my questions are:
- what syslog server are you using?
- have you compared syslog-ng and rsyslog features before choosing one? and when?
- do you feel there are limitations, maybe blocking limitations in the one you use?
- what do you use (if you use any) web interface for visualization? Do you any aggregation/correlation software for your logs? And which?
As you see, my idea is to use a syslog server to centralise logs, but also to provide a web interface for visualisation and even more if i found great software.
I'm waiting for your comments :)
For the moment, I'm testing on a test domain but before I switch all my real domains, I have a problem: what if my server crashes and i'm not online (sometimes i'm on vacations away from internet)?!!
I need a backup mx...
But for the moment my searches returns nothing about backup mx, free (or affordable). Do you know any service?
I know running a backup mx is not a simple task, and it's better not have one than a bad one, but... I think I can allways filter all the mails coming from the backup mx on my managed one, and my main problem is disponibility.
But the application is very unstable: it returns errors (apache logs says something like 'premature end of script: dispatch.fcgi') frecuently and only returning to the base url (http://test.domain.tld) I can return to the application.
So my question is: do you know if it's normal (i don't think so) and do you think installing it using Mongrel (like it's indicated in the vast majority of tutorials) is the solution of this problem.
I ask this because howtos about rails app installation without mongrel are hard to find, and nearly all talks about Mongrel (a Ruby webserver) in combination with apache mod_proxy.
Anyone have an idea? Maybe, this guide is outdated?
I'm currently configuring a Xen server with several domUs, but all of them sharing a single IP address. I use xen-nat and some iptables to redirect ssh and http ports .
So i'm currently connecting with ssh to each domU with commands like
$ ssh root@IP -p 1022
using 1022, 1023,... redirected to each domU port 22.
The problem is ssh key verification that force me to erase my .known_hosts IP key each time i connect to a different domU.
Do you know if there is a way to disable completely this behaviour or (better) only for my IP host?
(i have alreadly checked StrictHostKeyChecking but it don't seems to work because each time it cancel the connection)
 check http://blog.sietch-tabr.com/index.php/post/2007/07/10/Xen-NAT for more details (in French)
nspluginwrapper is now in Debian testing, and installing it enable Flash plugin for both Mozilla Seamonkey/Iceape and Firefox/Iceweaseal (using Ubuntu doc, I got only Iceape working) so it is great!
I finally rechecked my Xen+nVidia binary drivers problem, and this time solved it! Using the nvidia-kernel-source and nvidia-glx packages from unstable: the 100.14.11-1 version, and using the patch available here, I achieved to compile the module and got it running... ;-)
Ok, for the moment, I let aside the nvidia binary problems using the free nv driver, and try to make flash and other 32 bits apps running on my pure amd64 system.
I have checked all the d-a.org articles about the problem and a few others on the internet.
I think the chroot solution is a little bit complicated (management of two systems, problems sharing files, disk usage) so I looked to the solution indicated by ajt here. I ever found the getlibs script (see here) to simplify my dependencies problem, but I can't understand how i can run the flash player for Firefox as a plugin.
If i check with ldd the libflashplayer.so file, i see that no dependency is missing. But... the files needs to be put in the firefox plugins user directory (or in /usr/lib/firefox/plugins for systemwide), the application is not standalone and my Firefox is 64 bits, so when I browse a flash-enabled page, it simply crashes !
I there a solution for that? Or do I need to run a 32bit Firefox and so not use Debian package management?
I'm a little bit lost with these library problems, I don't really know/understand the problems and don't want to make mistakes, and want to have a the simplest possible solution, can anyone help me?
So, i successfully passed the Nvidia driver phase. No real problems with the standard amd64 kernel (see below for more...), there's a lot of documentation on the web to use a nvidia graphic card with the proprietaries drivers (don't forget the nvidia-glx package!). The only thing is the dual-head functionnality that i can't really try without a second screen (the KVM output an 'out of frequency' error on the screen on one of the VGA/DVI outputs).
Now, comes the Xen part. It drives me crazy, i rebooted multiple times but i finally found the right combination in my
/boot/grub/menu.lst to boot the
linux-image-2.6.18-4-xen-amd64 kernel on my ASUStek M2N motherboard. Here it goes: (relevant parts in bold)
title Xen 3.0.3-1-amd64 / Debian GNU/Linux, kernel 2.6.18-4-xen-amd64
kernel /xen-3.0.3-1-amd64.gz noapic
module /vmlinuz-2.6.18-4-xen-amd64 root=/dev/mapper/vg--root-lv--root ro acpi=off noapic nolapic console=tty0
And finally, the problem comes on the Xen+Nvidia phase. I compiled my kernel modules for Nvidia the same way i did it with the standard kernel, but everytime i launch X (via startx or gdm) the screen turn blank and the pc reboot... with no messages, neither on the screen, neither on my logfiles... i'm a little bit lost, so if anybody got an idea...