Possible Duplicate:
Any free Skype Video Recorder?
How can I record Skype video? Is there any thing like call graph (it is for audio). Is there anything for video?
I have a large monitor and when a PDF file is opened in my browser with the PDF plugin the letters are tiny with 100% zoom level. Every time I have to set it to 200% manually to be able to read the text.
Is there a way to set the default zoom level to 200% in the plugin?
I'm facing an interesting problem with plenty of Permission Denied outputs when using SymLinks
Linux: Slackware 13.1
Directory with Symlink:
root@Tower:/var/lib# ls -lah
drwxr-xr-x 8 root root 0 2012-12-02 20:09 ./
drwxr-xr-x 15 root root 0 2012-12-01 21:06 ../
lrwxrwxrwx 1 ntop ntop 21 2012-12-02 20:09 ntop - /mnt/user/media/ntop6/
Symlinked Directory:
root@Tower:/mnt/user/media# ls -lah
drwxrwx--- 1 nobody users 1.4K 2012-12-02 19:28 ./
drwxrwx--- 1 nobody users 128 2012-11-18 16:06 ../
drwxrwxrwx 1 ntop ntop 320 2012-12-02 20:22 ntop6/
What I have done:
I have used chown -h ntop:ntop on the ntop directory in /var/lib
Just to be sure, I have chmod 777 to both directories
Permission denied actions:
root@Tower:/var/lib# sudo -u ntop mkdir /var/lib/ntop/test
mkdir: cannot create directory `/var/lib/ntop/test': Permission denied
Any ideas?
The problem is similar to this scenario:
iptables rule still take effect after deleted
Scenario:
There are several clients(C1~C10) providing some services, such as SSH,HTTP.....
The clients are actually a personal computer behind NAT.
Their IP might be 192.168.0.x
For easily access these machines through internet, I built a OpenVPN server(S1).
All the C1~C10 connect to S1 with VPN address 10.8.0.x
If A user(U1) wanna access C1 SSH through internet, he can connect to S1 with port "55555", and S1 port forward 55555 to 10.8.0.6:22
echo 1 /proc/sys/net/ipv4/ip_forward
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 55555 -j DNAT --to-destination 10.8.0.6:22
It works well until I mark the following in the openvpn server.conf:
I marked this because I think this will make all connection go through S1
;push "redirect-gateway"
|-------(NAT)--------|
(C1)--| (INTERNET)----(U1)
|-----(VPN)----(S1)--|
The C1~C10 have their own path to access internet resource through NAT . The server loading would be heavy if all C1~C10 connection go through S1
(for example, C1 is sending data to C2, or C1 is downloading data from a FTP site).
Is there a way to solve this quandary?
Hi guys.
I'm appologizing in advance to the guys who will tell me this isn't a tech/server/IT issue!
But I've been beating my head around this for a couple of days now.
I'm trying figure out who to talk to, or which company I can approach to try to see if there are Grid/Cloud Computing companies who have programs setup to deal with colleges.
I'm dealing with a compsci course, and we're looking at a few projects that would require a great deal of computing/computational resources. But in calling different companies (HP/Rackspace/etc..) I'm either not getting through to the right depts, or to the right people, or the companies just aren't setup for this.
There are plenty of companies who have discounts for desktop software/hardware, but who in the biz deals with discounts/offerings for Cloud/Grid Computing solutions??
Any thoughts/pointers would be greatly appreciated.
Thanks
-tom
My machine has a Mobile Intel® GMA 4500MHD integrated graphics chipset.
The machine is currently running 64 bit windows 7 premium with 3GB of ram (1x1gb and 1x2gb).
I note that the Mobile Intel® GMA 4500MHD shares the physical memory to process the graphics.
now, the total available graphics memory can be up to 1,340 MB with a 32-bit operating system and 3 GB system memory or 1,759 MB with a 64-bit operating system and 4 GB system memory.
I am considering investing in a 4GB stick to replace the 1gb stick bringing the total up to 6gb, mainly for an increase in graphics processing ability.
Can anyone let me know what sort of power (if any over the 4gb) I could expect by upgrading to 6GB?
I am trying to install memcache on my VPS. When I type
$ pecl install memcache
I get this error
checking whether the C compiler works... configure: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details.
ERROR: `/root/tmp/pear/memcache/configure --enable-memcache-session=yes' failed
Any ideas what the issue could be?
I'm trying to "stack" filters in excel, so to speak. I want to filter column A to show anything greater than 30 and then I want to filter column B to show the top ten items. When I do this, however, it shows me all rows that fit both criteria (only five records). I want to first fit the criteria for column A and then filter these results to show the top ten items in column B (10 records total). I know that I could just copy the rows from my first filter to a new sheet and then filter the new worksheet, but is there any way to apply both filters so that I don't physically have to delete records this way?
Thanks for your help!
I am trying to figure out if my NFSv3 deployment is performing SAFE asynchronous writes. I suspect that it is doing strictly synchronous writes, as I am getting poor performance in general. I used Wireshark to look at the 'stable' flag in write calls, and look for 'commit' calls.
I noticed that, with especially large block sizes, writes to appear to be performed asynchronously:
dd if=/dev/zero of=/proj/re3/0/zero bs=2097152 count=512
However, smaller block sizes appear to be performed strictly synchronously:
dd if=/dev/zero of=/proj/re3/0/zero bs=8192 count=655360
What gives? How does the client decide whether to tell the server to perform writes synchronously or asynchronously? Is there any way I can get smaller block sizes to be performed asynchronously?
I run two completely independent websites. I am moving their MySQL databases to Amazon RDS.
I'm not going to do Multi A/Z deployment - let's remove that variable from this question.
I'm not sure whether to create a single RDS instance with two databases, or two Amazon RDS instances with a single database. Ignore cost for the sake of this question. I will not hit the 1 TB data limit so let's ignore that. However, it is extremely important that crashing one of the websites doesn't impact the other.
Based on this document -
http://docs.amazonwebservices.com/AmazonRDS/latest/UserGuide/Concepts.DBInstance.html
I'm assuming that if I write terrible code that crashes one of the databases in a given RDS instance, it could possibly take down the entire RDS instance (and thus inadvertantly affect the other database). Is that correct?
Thanks
We recently upgrade a number of our VmWare hosts from 4.1 to 5.5 and noticed many of the VMs saw a step-wise jump in CPU usage as shown by the guest VM. We have not yet upgraded vmwaretools on any of the guests, but after investigating a bit more we saw many of these guests with a high %RDY value (50%) when viewed under esxtop. Unfortunately Linux (the guest) just shows "high CPU usage" without any insight into what portion of that is coming from %RDY (VmWare saying, "your guest is waiting on CPU from the host"). Are there any tools, /proc entries, etc. that can shed light on that information?
Hi.
Exploring Vmware products/services and have a few questions.
As I understand VM, you can use VMWare Workstation to create a VM of a target machine/box/OS. Let's call this VM, "foo".
If I have 100 client PCs in my dept, and I want to install the VM (foo) on each client, and also manage the remote VM instances of (foo). How can I accompish this? Let's assume that the client machines are running Windows7, and have the vmplayer app installed on the box.
I'm looking to do the following kinds of actions regarding the remote client machines:
-Update the foo VM/image with new updated copies
-Make sure that every VM "foo" has the same user, but a unique passwd
-Monitor the traffic/status of each client VM "foo" oin each client
-Start/Stop each client VN "foo" from the master console
-Etc...
Can this be accomplished? How would I do it, what services/products would I need?
I've tried toalking to a few of the pre-sales guys in VMWare, and got nowhere, other than telling me to email my questions!! Looking at google shed more insight, but I still have questions.
So, if you have detailed VMWare understanding, pointers to consultants, or resellers who can help, all pointers are greatly appreciated.
Thanks
-tom
I need to replace my XenServer 6.1 resource pool hardware. I currently run Intel hardware and I have to move to AMD hardware (corporate politics and budget stuff, blah blah blah).
I have downtime available so I can use cold migration - live migration is not required. I will also have the new hardware (AMD) alongside the old hardware (Intel).
The XenServer docs say there may be problems exporting from one arch and importing to another "may not work" - http://docs.vmd.citrix.com/XenServer/6.1.0/1.0/en_gb/guest.html#importing_vms - but mentions nothing about simply turning off the VM on one arch and then powering it back on new arch.
VMs are a mix of OS - some Windows, some Linux, multiple versions.
Is this something that can be done with no problems, or are there problems I need to be aware of?
Is there anyway to move the Start Menu button on the taskbar in Windows 7? I've decided to try moving the taskbar to the left so I have more vertical screen real estate, but I would like the start menu to be at the bottom of the bar. Is there anyway to move it?
A company that I work for just acquired another company that was using Google Apps for it's email. We use Microsoft Outlook Exchange. The founders of the company (who are leaving) want to maintain a few email addresses on Google Apps for them to use over the next year. Does anyone know if it's possible to have just a few Google Apps email addresses working on a domain and the rest of the domain running on Outlook Exchange?
hi.
sorry to have to ask such a basic question!! i've got fedora 13, trying to figure out how to change the "I Beam" pointer.
earlier, i had a "thin" "I Beam" pointer in my gedit/term windows. now, I have a "thicker/shadow" kind of "I Beam" pointer when i move the mouse over the gedit/term windows.
obviously, i've made some change, but i can't figure out what I changed, or where this attribute is set. i've checked google/irc, as well as looked through the "system-preferences-appearance" with no luck.. i saw the customize part of the gui, and could resize the "arrow" but nothing for the "I-Beam".
this isn't critical, but it is anoying!!
any thoughts/pointers would be helpful.
thanks
hi.
sorry to have to ask such a basic question!! i've got fedora 13, trying to figure out how to change the "I Beam" pointer.
earlier, i had a "thin" "I Beam" pointer in my gedit/term windows. now, I have a "thicker/shadow" kind of "I Beam" pointer when i move the mouse over the gedit/term windows.
obviously, i've made some change, but i can't figure out what I changed, or where this attribute is set. i've checked google/irc, as well as looked through the "system-preferences-appearance" with no luck.. i saw the customize part of the gui, and could resize the "arrow" but nothing for the "I-Beam".
this isn't critical, but it is anoying!!
any thoughts/pointers would be helpful.
thanks
How can I pair two rows on a spreadsheet, so that for each data entry I can sort the matrix but the pair of rows moves as a single list of data, retaining the structure of the two rows?
For example:
Original entry
A1,1 B1,1 C1,1 D1,1
A1,2 B1,2 C1,2 D1,2
A2,1 B2,1 C2,1 D2,1
A2,2 B2,2 C2,2 D2,2
Sorted reverse order
A2,1 B2,1 C2,1 D2,1
A2,2 B2,2 C2,2 D2,2
A1,1 B1,1 C1,1 D1,1
A1,2 B1,2 C1,2 D1,2
IT executives taking lead role with both private and public cloud projects: survey | Joe McKendrick
"The survey, conducted among members of the Independent Oracle Users Group, found that both private and public cloud adoption are up—30% of respondents report having limited-to-large-scale private clouds, up from 24% only a year ago. Another 25% are either piloting or considering private cloud projects. Public cloud services are also being adopted for their enterprises by more than one out of five respondents." - Joe McKendrick
SOA all the Time; Architects in AZ; Clearing Info Integration Hurdles
This week on the Architect Home Page on OTN.
OIM 11g OID (LDAP) Groups Request-Based Provisioning with custom approval – Part I | Alex Lopez
Iin part one of a two-part blog post, Alex Lopez illustrates "an implementation of a Custom Approval process and a Custom UI based on ADF to request entitlements for users which in turn will be converted to Group memberships in OID."
ArchBeat Podcast Information Integration - Part 3/3
"Oracle Information Integration, Migration, and Consolidation" author Jason Williamson, co-author Tom Laszeski, and book contributor Marc Hebert talk about upcoming projects and about what they've learned in writing their book.
InfoQ: Enterprise Shared Services and the Cloud | Ganesh Prasad
As an industry, we have converged onto a standard three-layered service model (IaaS, PaaS, SaaS) to describe cloud computing, with each layer defined in terms of the operational control capabilities it offers. This is unlike enterprise shared services, which have unique characteristics around ownership, funding and operations, and they span SaaS and PaaS layers. Ganesh Prasad explores the differences.
Stress Testing Oracle ADF BC Applications - Do Connection Pooling and TXN Disconnect Level
Oracle ACE Director Andrejus Baranovskis describes "how jbo.doconnectionpooling = true and jbo.txn.disconnect_level = 1 properties affect ADF application performance."
Exploring TCP throughput with DTrace | Alan Maguire
"According to the theory," says Maguire, "when the number of unacknowledged bytes for the connection is less than the receive window of the peer, the path bandwidth is the limiting factor for throughput."
When reading an email, the ESC key can be used to close the window. This doesn't work when you're composing an email. Is there any way to do this? This happened in T-Bird 2.x, as well, but I'm looking for a 3.0 solution. Thanks!
Doing a lookup for my domain on http://www.intodns.com/ I noticed theese two messages:
In Parent section:
DNS Parent sent Glue The parent
nameserver g.gtld-servers.net is not
sending out GLUE for every nameservers
listed, meaning he is sending out your
nameservers host names without sending
the A records of those nameservers.
It's ok but you have to know that this
will require an extra A lookup that
can delay a little the connections to
your site. This happens a lot if you
have nameservers on different TLD
(domain.com for example with
nameserver ns.domain.org.)
and in NS section:
Glue for NS records INFO: GLUE was not
sent when I asked your nameservers for
your NS records.This is ok but you
should know that in this case an extra
A record lookup is required in order
to get the IPs of your NS records. The
nameservers without glue are:
109.230.225.96
84.201.40.52 You can fix this for example by adding A records to your
nameservers for the zones listed
above.
I do perfectly understand that the primary objective of glue records is to resolve circular dependencies.
The classic use case:
my domain is example.com and I want to have the nameserver ns1.example.com. This will never work because i cannot know the ip of ns1.example.com if I don't fetch example.com and in order to do that I need to fetch it from ns1.example.com. To resolve this deadlock I add a glue record to ns1.example.com containing the ip adress of the nameserver, so this can work out.
So this problem does not occour if the nameservers are in a different TLD than the domain i want to look up. But however to fetch the zone information from the nameservers I need to know their ip adress right? And in order to know that i need to fetch the zone the nameservers are in from their respective nameservers, right? (or rather my ISP needs to do that in the background) So an extra lookup that takes time?
If I now have glue records, I know the IP adress right away without the need to look it up - so this should speed up the resolution of my domain, shouldnt it?
However my DNS zone provider (tecserver.at) replied that
this would make no sense because "we
are not running ns1.ourdomain.com an
ns1.ourdomain.com as authorative NS for
ourdomain.com.
This would be the only sense for glue
records.
Tecserver has a glue record because
the NS for tecserver.at are
ns1.tecserver.at and ns2.tecserver.at.
Therefore a glue record is needed for
resolution.
I've never seen anything like this. At a potential customer site, I noticed that the PC's were all unable to locate the domain controller and netlogon was failing. I fixed the DNS entries on the client PC's so the AD server was DNS server and tried to rejoin the domain. The PC was unable to locate the domain controller.
On the server, I checked the DNS settings and while there is the high level AD folder, every single entry related to Active Directory appears to have been completely deleted.
There are no backups from what I can tell and this has been happening for 6 months at least. Does anyone have any recommendations for repairing this? Thanks.
I'd like to view the last few lines of a file, but I want the columns aligned. Basically, I want to disable wordwrap.
This is straightforward with:
tail $FILE | cut -c -80
But I'm trying to generalize my script for other users, and I'd like to cut to the actual terminal width, which I can get with:
stty size | cut -d" " -f2
So I would imagine that I could just
tail $FILE | cut -c -`stty size | cut -d" " -f2`
but it doesn't work:
stty: standard input: Invalid argument
cut: invalid range with no endpoint: -
Try `cut --help' for more information.
(Same results with the 'new' $() expansion.)
Now, if I echo it, it seems fine:
echo cut -c -`stty size | cut -d" " -f2`
cut -c -103
Am I just missing an escape char? Or is this somehow just not possible?
Thanks.