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1
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0answers
9 views

Performance loss when having too many files in /etc/cron.d?

Is there an amount of files in /etc/cron.d that would lead to worse performance? There are currently about 50 jobs in. In the future there can be up to 200 files in. Am I correct to expect the cron ...
1
vote
1answer
23 views

Does SFTP put operation have size limit?

I use SFTP to transfer file from local to remote Linux machine. However it fails. I tested it and come to a conclusion that, when transfer file is bigger than testScp.txt1, it fails and the machine ...
0
votes
0answers
7 views

limit/cap total disk I/O to temporarily improve Windows stability on faulty hardware

Is there a way to limit/cap total disk I/O on a Windows 7 system? Processes like git and McAfee sporadically crash with InPageError (for files on different physical drives), seemingly most often when ...
0
votes
1answer
30 views

parental controls linux- limit computer usage per day

I've searched and didn't find any working solution for parental controls in ubuntu 14.04 . The timekpr, gnome-nanny and modifying .pam settings don't work- I've tried them all. What would suffice ...
1
vote
2answers
116 views

Limit incoming connections using iptables per IP

I need to limit access to some port per IP. Let's say 5 connections per minute - not more. I've seen iptables recent, connlimit and limit, but all of them are not fitting exactly what I need. ...
0
votes
1answer
48 views

RAM limited to 12GB by motherboard?

I want to add more RAM to my motherboard (ASUS P6T) and I was looking through the manual and found this under the specifications: I'm guessing this means 12GB total? I asked somebody else and he ...
0
votes
1answer
17 views

Vendor devices produce limitation by MAC address?

Maybe it is silly, but I wonder if the first 3 hexadecimal values in MAC address represent vendor id (in 01:23:45:ff:ff:ff it is 01:23:45), is there a limit of 16777215 (ff:ff:ff) devices per vendor?
-1
votes
1answer
37 views

Limitation in number of entries in System variables Windows 7 64-bit

i've encountered that there might be a limit of how many entries you can have in System Variables in Environment Variables, can someone verify my suspicion? I'm not talking about how many characters ...
2
votes
1answer
34 views

what happens if a usb is re-connected too many times?

I read somewhere that USB and eSata have limits to how many "pairing" is can have. does this mean if it's ejected and re-inserted into the slot more than 1500 times it will just stop working? or does ...
0
votes
1answer
30 views

Linux limit instances per user

Is there a way to limit number of instances of a particular program user can run? Example, I have installed game server on a server and I want to give permission to another user to run at most 2 ...
0
votes
0answers
94 views

How to increase maximum file open limit (ulimit) in Ubuntu?

Currently ulimit -n shows 10000. I want to increase it to 40000. I've edited /etc/sysctl.conf and put fs.file-max=40000. I've also edited /etc/security/limits.conf and updated hard and soft values. ...
0
votes
1answer
111 views

error, couldn't create file .. File name too long

How can I increase the maximum length of a filename in linux? I'm trying to download a torrent file, and apparently because it's Cyrillic, the file name hit's the limit. error, couldn't create file ...
0
votes
0answers
43 views

Outlook on a MAC and the 1GB limit

While waiting for MS Office 2014 to arrive and address the 1GB limitation, has anyone written an AppleScript for detecting file size on an Outlook file/folder to send a threshold exceed warning ...
1
vote
2answers
206 views

Does Lenovo T400 can only work with up to 4GB RAM?

Does Lenovo T400 can only work with up to 4GB RAM? On the detailed specifications for the Lenovo T400, it says "512 MB, 1 GB, 2GB, or 4GB memory" and "Supports up to 4GB maximum memory". Is it for ...
1
vote
1answer
177 views

NTFS and ReFS limitations

As far as I know, by design NTFS supports partitions containing up to 2^64 clusters. But NTFS implementation in Windows XP and later is somewhat limited by Windows stack which can address 2^32 ...
4
votes
1answer
118 views

Limit to number of files in the Recycle Bin?

A couple of weeks ago I was carefully deleting an old backup of my data drive. I did a duplicate-file check between the old backup and the live copy and deleted the old copies to the Recycle Bin. It ...
0
votes
0answers
39 views

How can I give priority in nginx for certain ips?

I want to download files from one server to another, my problem is that in peak time my servers are in high network load and the speed is not so great. How can I give priority in nginx for certain ...
0
votes
0answers
339 views

Set Downloading Files Size Limit

Hi i am working in Online Add Posting job, i have problem all people in working time start downloading movie, etc so i want to block downloading or set the maximum downloading file size so people are ...
1
vote
2answers
126 views

How much can data be compressed? [closed]

Is there a scientific limit to how much data can be compressed? What i mean is, compression is essentially representing a larger amount of data ith a smaller one, such as representing a=abc b=def ...
0
votes
1answer
174 views

Linux Shell Speed/Bandwidth Limit

I use Debian 6 - 64bit and I've been using "trickle" for limiting my download/uploads speed on different kinds of programs like "wget" or "ftp". But now I want to reduce speeds for different kinds of ...
2
votes
2answers
709 views

Can file system performance decrease if there is a very large number of files in a single directory (NTFS)?

I have heard that file system performance (on a NTFS partition) can start decreasing if the number of files in a single directory becomes very huge (eg : >= 10.000.000 items). Is it true ? If true, ...
1
vote
1answer
350 views

Is it possible to limit number of emails per user per period on Exim?

I'm wondering if it's possible to limit number of emails allowed from a specific email account on Exim (maybe set a 20 email per hour limit for ab@test.com). I'd like to see if I can use this as a ...
2
votes
0answers
100 views

Limit user bound ports to arbitrary ranges

Is it possible to allow user to bind only certain ports? For example, I was trying to achieve this: user1: can bind only on ports 4001 and 4002 user2: can bind only on ports 5001 and 5002 and so ...
5
votes
2answers
1k views

Is there a limit in rar password size?

I am using a program because of a rar password that i've forgot and it's skeeping passwords tries because of length. Is that a limitation because it's shareware or is there really a limit in the max ...
3
votes
0answers
623 views

Cannot increase maxfiles limits on Mac 10.7

I an only set lower values for the launchctl limit maxfiles. I try launchctl limit maxfiles 2048 2048 and nothing changes: $ launchctl limit maxfiles maxfiles 500 500 $ launchctl limit ...
0
votes
0answers
54 views

what are sane open file descriptor limits on linux?

Where can I get good guidance on sane values for open file descriptor limits on linux. We have users asking for massive numbers as their limits and I am unsure of the impact of this and what should ...
0
votes
1answer
518 views

What is the largest file I can write to a DVD?

I am creating an archive of a large file set using the 7-Zip command line tool, and I am going to write the archive to DVDs (2 sets, to be safe). Assuming exactly one file (a part of a 7-Zip archive) ...
5
votes
2answers
2k views

Does the 4 GB RAM limit on 32-bit systems also affect the swap space?

It is well known that 32-bit systems can only handle 4 GB as maximum amount of RAM. Under Linux, does this limit also apply to swap partitions? If my RAM + swap exceeds 4 GB, will it be fully used? ...
1
vote
1answer
79 views

How can I find the actual amount of free file directory spaces in a FAT32 folder?

I understand that there are approx. 64K possible files in a FAT32 folder. This assumes 8.3 file names. Longer file names take up multiple slots. Therefore, it is difficult to know how many actual ...
0
votes
1answer
61 views

Setting “limit” in folder-hook

I'm trying to use "limit" by default when entering given mail folder. So far the only solution I found was using push, like: folder-hook rss 'push "l!~R<enter>"' But that just seems wrong - ...
6
votes
1answer
5k views

How does windows “limit” the CPU (Power Options / Battery saving)

Can anyone explain how Windows effectively limits the CPU? Last time I tried some tricks to let my laptop not overheat, so I tried limiting the CPU to 70%. As for my suprise it stopped my laptop ...
2
votes
1answer
340 views

Working with dates in Excel older than 1900

Are there any workarounds for working with time and date data prior to January 1, 1900? Excel seems to just assign my values dates in 1900 rather than keeping them intact.
1
vote
1answer
421 views

NETGEAR DGN 1000 Limit Usage Per System

How to limit the data usage per system per day connected to my NETGEAR DGN1000 router(modem)? Please share some ideas. I can also use a dedicated computer if you can propose how to route all the ...
4
votes
1answer
1k views

What is the difference between “stop the task if it runs longer than” inside Trigger and under Settings tab?

When I schedule a task in Windows Task Scheduler, I can set "stop the task if it runs longer than" inside task trigger or inside Settings tab. If I set it inside the trigger it does not automatically ...
0
votes
2answers
178 views

isp overriding netbios

I have a Thomson TG789vn v2 router and a weird way ISP (ASK4, UK) wants me to use it. They are telling me to connect their cable to Ethernet 1 slot and disable DHCP on the router. When I do that ...
0
votes
1answer
182 views

ISP 5 Device Limit … again

Sorry for the delay in responding to the suggestions that were posted in my first question (ISP 5 Device Limit - double NAT the solution?). I've been travelling and have not been able to try anything. ...
1
vote
2answers
242 views

limiting the hard drive read speed for a program c++

Is there a way to limit how fast a program can read from files without slowing the program itself down?
1
vote
2answers
360 views

ISP 5 Device Limit - double NAT the solution?

I have asked this question in response to another question here ( 5 Max connections/devices to the internet? Is my ISP limiting me somehow? ), but thought I should start a thread to see if I can get ...
1
vote
1answer
2k views

How to limit disk usage (Write/I/O) by application? (NOT space usage)

I'm really annoyed by not being able to do a few jobs at a time even if I have plenty of RAM and CPU left to utilise - so it's the disk usage, for example when I am extracting big archives using ...
2
votes
1answer
100 views

Limit a user to VI and Tail

I'm running a server on centos 6.0 and I'm looking for a way to limit ssh access of one user to only tail and vi and only in their home folder. I found some guidelines to the home folder part but ...
1
vote
2answers
336 views

Where can I limit the processor usage of a process that is copying files?

How can I limit the processor usage limit for the copying process when it is running? My friend and I are planning to get a PC to host servers and we need to know how to limit this usage to the ...
1
vote
1answer
5k views

How to limit max bandwidth per IP/MAC address

I have a client who would like to offer free bandwidth to his clientèle but limit the amount of downloaded bandwidth by either MAC address or IP address on a given day. Believe it or not, bandwidth is ...
0
votes
1answer
1k views

vsftp on RedHat (CentOS) - Is there a way to set up file-size and number of files quotes for anonymous uploads?

We have vsftpd service on our server but I didn't find a way to put limits on file size and total space available for anonymous file uploading (doing it via an account will make it harder - as our ...
1
vote
3answers
4k views

Zyxel P-660HN-T1A modem limits only wireless connection to only 8 devices

I have a Zyxel P-660HN-T1A modem, which connects to my ISP. I have an 8-port ethernet switch connected to it and other laptops connect via Wireless. As soon as upto 7 laptops connect to the modem, the ...
-4
votes
1answer
111 views

Where is the cpu's limit? [closed]

Some years ago, some people said cpus reached their limit, and any improvements were impossible, because of temperature problems And then we got multiple cores ! But again, what are cpu's limit ?? ...
2
votes
1answer
70 views

is there any software to establish N percent of internet speed to the processes?

I'm interesting to find a software to control my internet speed usage that would limite each process to use percent of internet speed. or even any (speed or volume) limitation that would set to each ...
0
votes
2answers
3k views

Rate limiting bandwidth per IP

First, I am not that good with computer. I even had problem with Windows PC. Right now I own a restaurant which happened to offer free internet. My ISP has my connection setup using a Ubuntu 11.1 box. ...
2
votes
1answer
224 views

Directory transfer from Linux -> Windows; 255 Character limit error

I need to copy a very large directory from a linux server to a windows machine; the directory is very large and contains directories that go as deep as having 50+ subdirectories. So as you could ...
2
votes
1answer
6k views

Is there a way to bypass the 256 kB limit for a custom Windows 7 login screen?

When you use a custom background for the login screen Windows 7, the size of the image file is limited to 256 kB. Is there any way to bypass this limit? Warning: Before answering this question, make ...
4
votes
3answers
1k views

how to limit find command's output used with option -print0

I'd like to limit output of find command. In the past I used to use for this ls command, e.g: ls *tgz|head -100|xargs -i mv "{}" ../ but I got to know that the result may be unpredictable if name ...