1,700 reputation
418
bio website itnomad.wordpress.com
location Dusseldorf, Germany
age 38
visits member for 3 years, 1 month
seen Oct 19 at 14:20

The best thing about procrastinating is you can do it NOW and ANYTIME.


Sep
9
comment Linux unfriendly IIS/ASP.NET :-) : Quick download on windows but slow on linux
There is a netfilter target which can strip tcp options, like timestamps. github.com/wadobo/iptables/blob/master/extensions/…
Aug
28
comment flushed IPs by mistake on UNIX how to recover from rescue
So this is not really an IP-connectivity problem but your server simply doesn't boot up at all? And this interfaces file is from the rescue-system, not from the harddrive? Try mounting the root partition from the harddrive into the rescue system. There, inspect the real interfaces file and look for logs indicating, why the system doesn't boot.
Jan
25
comment Apache sends plain-text response when accessing SSL-enabled site without HTTPS
What Content-type is the server sending? It should be text/html. If it's text/plain instead, something could be wrong with your error-files.
Dec
20
comment DHCPD clean leases on client disconnect
Can you provide us with a config-sniplet of you "on events" declaration?
Mar
22
comment dd-wrt obfsproxy - Cant start on startup or via cron job
Do you really want to start it every minute? Cause this is what the * * * * * says.
Mar
22
comment mysql client can't read query result?
You say "30k simultaneously connected users (users of XMPP servers)". To how many actual simultaneous MySQL-connections does that lead? Also, what is the CPU- and IO-load on the MySQL-server? How many queries? Are these slow queries?
Mar
20
comment NFS unmounted folder having cached files?
@Fakrudeen - it's implied, see the Solaris version of the manual page: "... these are hidden until the file system is unmounted."
Mar
20
comment NFS unmounted folder having cached files?
Fakrudeen: It's in the manual page of mount: "This [mount] tells the kernel to attach the filesystem found on device (which is of type type) at the directory dir. The previous contents (if any) and owner and mode of dir become invisible [...]" And this is what the Solaris manual page says: "mount attaches a file system to the file system hierarchy at the mount_point, which is the pathname of a directory. If mount_point has any contents prior to the mount operation, these are hidden until the file system is unmounted." - it's well defined UNIX behaviour.
Mar
20
comment NFS unmounted folder having cached files?
In addition to what Gus said, you could check that with creating a new file on the NFS-share while it's mounted and then unmounting it. If it isn't there after umounting, you have local copies of the files on the local harddrive.
Mar
20
comment SSH unresponsive after stopping Tomcat, many ksoftirqd CPU usage
Not an idea per se, but what you could try to investigate further is to check why the ksoftirqd kernel-threads are that busy. I suggest to install atop, run as atop -l and filter for ksoftirq (press "P" and give "ksoftirq" as filter). Then observe RDDSK and WRDSK, as well the state of the process (S) - is it non-interuptable - D - for instance? Also you might as well have a look at your io-subsystem using iostat to check for possible IO-bottlenecks.
Mar
20
comment How to compute CRC in radius response
You could look at the code for the Perl module Net::RADIUS::Packet, especially into the password() and set_password() subs. Also, auth_req_verify would probably the correct function for you to look at: cpansearch.perl.org/src/LUISMUNOZ/Net-Radius-2.103/Radius/…
Mar
19
comment Generating ICMP packets when TTL=2?
Also, would the last hop be on the same physical router, just another loopback interface nearer to the sender?
Mar
18
comment can't upgrade libc6
Why not move /lib/x86_64-linux-gnu/libc-2.13.so to a backup location and try again? Did you try it? Is anything actually using this library? Try something simple like ldd /bin/ls and check if it's actually using this library. If not, moving it is worth a try. You can alway revover this lib with a rescue shell.
Mar
18
comment Server is unable to make outgoing ftp requests. How to open this?
OK, these are all 404 - file not found - errormessages. Did you tune your sources.list in Debian correctly?
Mar
18
comment Server is unable to make outgoing ftp requests. How to open this?
These are all 404 error messages. What is this whitespace in the errormessage anyway (not sure if it's related?) http://_ _ftp.us.debian.org/debian/
Mar
18
comment Access mysql DB from different instance on EC2
You do know that this user may now access the database with this password from every IP-address?
Mar
13
comment Access mysql DB from different instance on EC2
What it's also strange; the grant is for 'username'@'ec2-xx-xx-xxx-xxx.compute-1.amazonaws.com', but the error message is for the hostname 'ip-xx-xx-xxx-xxx.ec2.internal'. Did you really make sure using the same IP address as you used in the GRANT-statement? If not, add 'username'@'ip-xx-xx-xxx-xxx.ec2.internal' to your grants as well.
Mar
13
comment mysqld never gets to “ready for connections”
Try setting log-warnings=1 in your my.ini, restart the service, and check the logs again. There's a chance that this will give you more information. By the way, which version of MySQL and which flavour?
Mar
13
comment Access mysql DB from different instance on EC2
Did you run FLUSH PRIVILEGES; after modifying the user's grants?
Feb
21
comment HAProxy check port 443
Isn't it ssl_hello_chk, with underscores instead of dashes?