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bio website github.com/kofemann
location Hamburg
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visits member for 2 years, 1 month
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Code for coffee


Oct
4
comment sudo does not prompt for password and reports 3 incorrect password attempts
check for 'Path askpass'
Oct
4
comment Puppet dynamic environments and version control
this is in the production. we use environments to 'group' the nodes into a security domains.
Oct
4
answered Puppet dynamic environments and version control
Oct
4
comment sudo does not prompt for password and reports 3 incorrect password attempts
check SUDO_ASKPASS environment variable
Sep
24
comment No acl on nfs mount in RHEL6?
for nfs, you have to use nfs4_getfacl/nfs4_setfacl from nfs4-acl-tools package
Sep
18
comment Poor NFS Performance Using Multiple Disks
check rsize and wsize options.
Sep
18
comment No acl on nfs mount in RHEL6?
what command do you use to get acls on the client?
Sep
17
comment inconsistency between du -sh and df -h
This difference can be triggered by block size on the NAS server. du shows number of byes, df - number of blocks * block size. Additionally, df asks NAS server for usage information, du counts it locally,
Sep
15
answered OpenAFS on Fedora/CentOS
Sep
4
comment NFSv4 with idmap
try to enforce numeric ID's on the server: echo "options nfs nfs4_disable_idmapping=1" > /etc/modprobe.d/nfs.conf and reboot NFS server.
Sep
3
comment memory exhausted errors on nfs clients
check on the server for a files with loooong names
Aug
29
comment Vagrant NFS share doesn't show updated file if size doesn't change
you need file's mtime to be changed to trigger NFS client to re-read cached blocks.
Aug
22
answered Why is an nfs server mounted as rw returning read only filesystem errors
Aug
21
comment Why can't I chown to nobody over nfsv4?
looks like your user nobody has a group without mapping
Aug
17
answered NFSv4 file ownerships, nfsidmap name not found in domain
Aug
16
comment How do I speed up “ls -l” on a network file system (NFS)?
The slowest part is getting file attributes for each single file. You can a bit speed it up by increasing nfs client cache life time. Check acregmin and acregmax mount options ( man nfs )
Aug
15
comment NFSv4 and rpcbind
NFSv4 doesn't require rpcbind. But there are clients and tools around which still depend on that information, for example 'showmount'. Additionally, Linux nfsd uses /proc/fs/nfsd/portlist file to communicate port number to rpcbind, and this file somehow depends on running rpcbind process.
Aug
14
comment bash: setting environment variables from a script and leave a shell prompt
with options --noprofile --norc you will force bash not to read /etc/profile and bashrc. So add /bin/bash --noprofile --norc at the end of your script
Aug
14
comment bash: setting environment variables from a script and leave a shell prompt
add at the end on script /bin/bash -l
Aug
9
comment Connection timeout on socket for a host machine
The TCP handshake has three steps: SYN, SYN-ACK, ACK. Connection timeedout indicates that SYN-ACK message ( or ICMP control message ) did not arrive.