347 reputation
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bio website sig-io.nl
location Netherlands
age
visits member for 2 years, 7 months
seen Sep 17 '13 at 15:07

Sysadmin for hire, linux guru


Sep
3
answered Set max file limit on a running process
Jan
24
comment How can I accept connections for an entire IPv6 /64?
For ipv4 there is: sysctl -w net.ipv4.ip_nonlocal_bind=1, but there doesn't seem to be an ipv6 equivalent.
Jan
24
comment Monitoring of disk usage over time - check for large variations
Not really an answer, but maybe some pointers in the right direction. If you plot your disk-usage into an rrd-file (for example cacti/smokeping/mrtg/whatever), there is a nagios-plugin (check-smokeping) that I use to check for latency spikes. This could be modified to detect disk-usage deviations as well I guess.
Jan
24
comment How to configure multipath using Intel X520-SR2 10GB on Oracle Linux 6.2?
I mostly use iscsi these days, but from what I can remember from my FC-days... powerpath, or sansurfer should give you your Lun information.
Jan
24
answered How to configure multipath using Intel X520-SR2 10GB on Oracle Linux 6.2?
Dec
8
awarded  Yearling
Oct
22
awarded  Necromancer
Aug
10
comment high load average, high wait, dmesg raid error messages (debian nfs server)
1) Get a new drive, partition it accordingly 2) mdadm --add /dev/mdX /dev/sdX1 3) Wait
Aug
10
comment high load average, high wait, dmesg raid error messages (debian nfs server)
I'm seeing errors on sdb and sdc above in your logs. Best is to run (now, and regularly) SMART tests on your disks. On my own raid-arrays and disks I usually run weekly 'smartctl -t long' checks on all disks. Errors and failing disks can then quickly be found.
Aug
10
comment Ubuntu 12.04 LDAP SSL self-signed cert not accepted
Also, if you want to keep on the self-signed path, make sure you make your own CA, and then a certificate for the ldap server, which is signed by this CA. So not self-signed, but signed by your own (self-signed) CA certificate.
Aug
10
comment Ubuntu 12.04 LDAP SSL self-signed cert not accepted
Not really any useful answer, but why not just get a non-self-signed certificate... startssl gives 'm away for free, and they are listed in all OS's and browsers.
Dec
18
answered SSH - fingerprint variation
Dec
18
answered openvz node with only one vps
Dec
18
comment linux/centos crashing periodically
No, when you would have out-of-memory situations, you should be able to see those in the logs. It could be that you have some hardware issues, though these could be difficult to diagnose.
Dec
18
comment Remotely use root over ssh for unison
Yes, you should have an enabled and working root account. The options for 'PermitRootLogin' are 'no', 'yes', and 'without-password'. The last one allowing only logins using ssh-keys.
Dec
18
answered Remotely use root over ssh for unison
Dec
18
answered lvm over two raid1's - one slow, one fast. What will happen?
Dec
8
awarded  Revival
Dec
8
answered How can I mount a VXFS file system under linux or windows?
Dec
8
answered linux/centos crashing periodically