Unanswered Questions
3,686 questions with no answers
9
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CentOS 6 local update repository and security updates
I know that official CentOS 6 (even 7) update repositories does not provide security information. The consequence is thatyum-plugin-security plugin and yum check-update --security command does not ...
CommunityBot
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8
votes
0
answers
4k
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ZFS cannot import : I/O error
I experienced an error in my ZFS machine. This may have happend after I lost power to my server, but I can not tell for sure. My ZFS Pool Gewuerzglas with RAIDZ-1 is no longer willing to import. I ...
7
votes
0
answers
409
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Logrotate and "insecure permissions": What can actually go wrong?
Logrotate complained to me this morning that it would not rotate some logs because their parent directory is writeable by someone else than root. The man page states I can make the error message go ...
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7
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how to tune NFS client on MacOS to get Linux like performance?
I have a NFS server running Linux and exporting a couple of shares. Both Linux and MacOS clients connect to the server, and while with the Linux clients I get ~ 75MB/s write speed, the MacOS clients ...
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6
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0
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2k
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Applying systemd control group resource limits automatically to specific user applications in a gnome-shell session
Having seen that GNOME now launches apps under systemd scopes I've been looking at a way to get systemd to apply some cgroup resource and memory limits to my browser.
I want to apply a MemoryMax and ...
- 11.2k
6
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0
answers
2k
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Caching, forwarding Bind 9.9.4 server works for weeks, suddenly SERVFAIL on all queries (rebooting fixes it)
I have bind 9.9.5 running on two servers (CentOS 6 and 7), for caching and forwarding DNS queries for a mail server. The servers run fine for weeks, then suddenly respond to all queries with SERVFAIL. ...
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6
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0
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157
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Write arbitrary attribute into ENV from LDAP upon successful PAM authentication
Is it possible during the authentication phase of pam_ldap to map an arbitrary LDAP attribute of the user's record into the resulting user's environment?
The specifics of my situation, in case you ...
- 1,094
6
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0
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7k
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Server went offline for no reason except SIGINT?
We had a system go offline this morning. The only thing in syslog is:
Mar 20 15:27:15 fooserver systemd[1]: Received SIGINT.
Mar 20 15:27:15 fooserver systemd[1]: Starting Synchronise Hardware Clock ...
6
votes
0
answers
5k
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Wrong filename encoding/decoding when downloading recursively with wget
I'm downloading files from a remote directory recursively using wget and whoever created the folders and files, used special characters such as è or Ó, when I download a single specificating the full ...
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6
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0
answers
2k
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TCP congestion collapse
I am experiencing suboptimal performance on an EC2 instance connecting to an RDS instance. This particular instance was built before VPC's existed, so all the traffic is flowing through a single ...
- 3,614
6
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0
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20k
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ActiveMQ - "Cannot send, channel has already failed" every 2 seconds?
ActiveMQ 5.7.0
CentOS release 6.3
java version "1.6.0_26"
Application server: Tomcat
In the activemq.log, I'm seeing this exception every 2 seconds:
2013-11-05 13:00:52,374 | DEBUG | Transport ...
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5
votes
0
answers
203
views
firewall-cmd to drop existing connections
I want to use firewall-cmd to temporarily block mysql port 3306, including existing connections.
However after I remove MySQL service, only new connections are blocked. The existing connections are ...
- 151
5
votes
0
answers
806
views
AWS: Can't mount my restored volume (EBS snapshot)
I restored an EBS volume from AWS Backup and attached it to a new EC2 instance. When I lsblk I can see it under the name /dev/nvme1n1.
More specifically the output of lsblk is:
NAME MAJ:MIN RM ...
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5
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0
answers
11k
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Mount filesystem with "structure needs cleaning" on ext4
There is a created years ago(and many time resized from that times) filesystem with ext4. After power failure it stop to mount.
When i try to mount it manually i receive an error:
# mount /dev/space/...
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5
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0
answers
1k
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Interpreting resize2fs shrink progress (-p) "pass 2" output
The question: What is resize2fs's progress bar indicating during "pass 2" of an offline shrink operation on a large (8-28Tb) ext4 filesystem?
The details:
I've done ~5 resize2fs shrink ...
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