I am looking to buy a rack mounted UPS that can take in 208V power and serve up 120V power. A basic APC unit that can do this is $4k. I have found a Tripp Lite model that will work for $2.5k.
Is the extra $1.5k for the APC just for the brand? Or will the Tripp Lite serve me just as well?
Thanks!
When attempting to import a bunch of data into mysql tables using python and mysqldb, I run into the following error '2006 - mySQL Server has gone away', and then I am unable to reconnect again within the script.
I am iniitially re-using a connection object across transactions ( delineated by conn.commit() ), then when I first encounter this…
I just finished setting up a default Linux EC2 instance and would like to install PHPMyAdmin. I already have Apache and MySQL installed but cannot seem to install PHPMyAdmin. I tried using
sudo apt-get phpmyadmin but the command apt-get is not recognized.
I also tried sudo yum install phpmyadmin but that I get the message No package…
At one of my customer sites, the local guy shut down their local Solaris 10 x86 server, pulled the power inputs, moved it, and now it won’t start properly. It boots and then presents a prompt which lets you log in. This appears to be single user milestone (or equivalent).
Digging into it, I think that SMF isn’t permitting the system…
I have a VMware image running a copy of Fedora 11 which is hosted on a remote server. The remote server recently had its IP address change. I'm now unable to connect to my virtual machine. The server admin assures me that my virtual machine is running and assigned the new IP address. I have checked the firewalls and had the remote…
I tried to use sqlmaint.exe tool to back up a database on a remote PC. Here is an example of backup:
sqlmaint.exe -S remoteSQLServer\SQLInstance -U username -P pwdxxx -D myDB
-BkUpMedia DISK -BkUpDB C:\MSSQL_Backups -DelBkUps 3days ...
Here I specified to delete backups older than 3 days. However, the job seems not deleting…
I have gVim installed. Under Vista and XP, this offered me an addition to either the object context menu of "Edit with gVim", or an addtion to the "Open With" context menu of "gVim". This would let me send arbitrary files to gVim for editing.
Under Windows 7 64-bit, I have installed gVim -- twice, as it happens -- and there's…
I've got about a dozen Windows XP machines that I need to make a couple specific printer configuration changes to. The printer is "virtual" printer for an electronic delivery service. I'd like to not have to visit each machine individually. I already have the means to execute commands remotely on the machines, I just can't seem…
I have been trying to set up my MacOS X Server, which I recently upgraded to Mountain Lion, to use denyhosts as I need to open port 22 to it. denyhosts is set up and adds entries to /etc/hosts.deny so I decided to add my laptops IP to it in order to verify that it actually works but I can still log in and my IP shows up in…
I'm running a basic express server from CentOS but for some reason it is not responding outside of localhost, I have tried everything I have found on google but nothing works so far.
This is my express server:
app.listen(3000,"0.0.0.0");
If I do curl http://localhost:3000/ in the server it works fine.
If I curl to the…
I've noticed this several times: a switch starts to behave oddly. Usually if the switch doesn't fail outright, what tends to get noticed is that DHCP doesn't work.
We had a Linksys SRW-224P fail today. Systems which were still connected worked properly, until it came time to renew their DHCP lease. Once the lease…
I have an addin for Excel 2003. I tried to use MSDN's vbs script to make it installed, see my previous post question. It seems working as addin, but it does not displayed on toolbar when it is first installed on a box.
What I have to do is to go to Tools-Add-Ins.. to uncheck my addin, for example myAddin, and then…
I've setup TomatoVPN using these settings on the server:
TAP
UDP
1194
Client address pool 10.10.9.1 -10.10.9.254
LAN clients are configured with 10.10.10.x
I can connect from a remote client, but pinging anything in the 10.10.10.x results in
a "Destination Host Unreachable" error.
Here's my client…
Clients that have been reporting their state fine suddenly start reporting "Windows 0.0" for their OS and "Not yet contacted" for their Last Contacted date even though previously these values were present and correct.
Any idea why this might be happening? I've spend a long time playing with wsauclt etc…
An application is running on a windows XP prof machine picking up file from a network share from another windows machine. It detects that the file has been updated (by date and time or optionally file size) and reads it for any new data.
Most of the time the last write time and file size, seems to be…
I am new to EC2 (and Tomcat, for that matter), and I am trying to deploy a vanilla Tomcat 7 server to an Ubuntu 12.04.1 EC2 instance and access the default test site over HTTP.
My EC2 instance is running, and the Security Group includes port 80:
My /etc/tomcat7/server.xml config has been edited…
I'm using the scp commands to pull some files from the remote server and one variation of the command is not working.
I have 2 files names one.xml and two.xml in a remote server and I'm pulling these two files into the current dir using the following command:
scp…
CHM files that are downloaded are often tagged as potentially malicious by Windows, which effectively blocks all the html pages inside of it. There's an easy fix (just unblock the file after you download it), but I was wondering if there's a better way to provide…
I have a VoIP service running perfectly for outgoing calls but I cannot receive incoming calls.
I have a Netgear DGN 2000 modem router on 192.168.0.1 and a Lynksys Phone Adapter PAP2 on 192.168.0.2.
I have created 3 new custom services:
Service Table…
I have a VMware image running a copy of Fedora 11 which is hosted on a remote server. The remote server recently had its IP address change. I'm now unable to connect to my virtual machine. The server admin assures me that my virtual machine is running and…
Should a three node Cassandra cluster with a replication factor of 3 have the same load value for all three nodes?
We are using a random partitioner and NetworkTopologyStrategy. Nodetool ring shows equal values for "Owns" but unequal values for "Load".
…
I have a situation where I'm setting up multiple VLANS on a pfSense firewall on the same physical interface for a client.
So in pfSense, I now have VLAN 100 (employees) and VLAN 200 (students - student computer lab).
Downstream from pfSense, I have a…