Unanswered Questions

21
votes
2answers
3k views

Receiver limits TCP window size to 64,512

Facts (please identify any false statements): I have a 100 Mbps connection between two sites that are 80 ms apart This is a long fat connection that could benefit from a large TCP window size ...
16
votes
3answers
2k views

Systemd: start a unit after another unit REALLY starts

In my particular case I want to start remote-fs unit after all glusterfs completely starts. My systemd files: glusterfs target: node04:/usr/lib/systemd/system # cat glusterfsd.service [Unit] ...
14
votes
2answers
3k views

Is there any way to fix a corrupted LDM database?

TL;DR: Are there any tools/approaches to diagnosing and fixing LDM (Logical Disk Manager) metadata structures without recreating from scratch? Full description: I have two SSD drives ...
13
votes
2answers
2k views

How to upgrade to the latest AMI in AWS Elastic Beanstalk?

I'm running an application on AWS Elastic Beanstalk, and it looks like I need to create a new environment if I want to use the latest AMI. If I knew what the latest AMI id was, I could update it in ...
13
votes
1answer
10k views

Prevent IE10 from creating WebCache through Group Policy

IE10 implemented the WebCache which appears to be the new way of doing Temporary Internet Files. The location of this is C:\Users\\AppData\Local\Microsoft\Windows\WebCache In my situation we have a ...
13
votes
2answers
14k views

Using Https between Apache Loadbalancer and backends

I am using an apache (2.4) server configured as loadbalancer in front of 2 apache servers. It works fine when I use http connections between loadbalancer and backends, however using https does not ...
12
votes
1answer
858 views

What does a warning icon on a conditional forwarder mean in Windows DNS Manager?

The icon for one of the conditional forwarders on an Active Directory DNS server I manage has a standard warning icon (yellow triangle with exclamation point) overlay (all names have been changed to ...
11
votes
2answers
4k views

Tomcat 7 trailing slash issue with webapps

Recently I upgraded my tomcat server from 6.x version to the most recent 7.x version. I came up with little trouble, hoping to get help. I have an application calls MyApp On tomcat6, when I went to ...
10
votes
2answers
2k views

Windows 10 WMI and Event Viewer access denied

We have a Windows domain where I used GPOs to enable remote management and monitoring of all of our workstations using WMI. I can also connect to all of our computers with Computer Management and ...
10
votes
1answer
408 views

SynProxy can not return syn ack packets with asymmetric dual bridge topology

I have a asymmetric dual bridge topology as shown below when i connect from 172.16.11.5 and 172.16.10.6 with ssh but i can not connect because of SynProxy. ------- ...
10
votes
0answers
452 views

Check that a given user has a given privilege

Given a pair of a user and a privilege I need to determine if a user has the privilege on the server. The following is true in my setup: The server is a part of a domain but not a domain controller ...
10
votes
2answers
2k views

subversion load fails with “no such revision”

I'm trying to learn how to migrate a Subversion repo, and am running into an issue that doesn't make sense to me. I've used svndumpfilter to split out a sub-project, and have removed some path ...
10
votes
3answers
1k views

Background discard on swap partitions on Linux + SSD

Problem I want to enable background TRIM operations on a swap partition within a SSD disk on Linux. According to several articles, e.g. this one, the kernel detects this configuration and ...
10
votes
5answers
20k views

Netcat (nc) traditional package for RHEL 6.x?

I'm trying to use the Percona Apache Monitoring [Cacti] Template for Memcached. They do indeed warn that you can't use the openbsd version of the package and provide a solution for Ubuntu/Debian ...
9
votes
0answers
3k views

kworker consuming +90% IO and zero disk write

this is a standard apache web server on AWS Linux AMI + EBS. We are noticing high load average (+8) and iotop -a shows: Total DISK READ: 0.00 B/s | Total DISK WRITE: 2.37 M/s TID PRIO USER ...

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