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bio website ralstonrats.co.uk
location Scotland, United Kingdom
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visits member for 3 years, 5 months
seen Dec 3 at 21:48

Nov
18
comment Linux cache evictions
thanks, nice article. Any idea what book the chapter comes from? However, although it explains how a particular page is prioritized for eviction, it does not really explain why pages are evicted when there is no apparent demand for memory. What controls the process "to shrink the cache to make available more RAM for other uses"? What is it replacing these with?
Nov
18
comment Linux cache evictions
Thanks Joe, however the first 2 options specifically relate to data which needs to be written back to the filesystem (i.e. the write buffer) not data which has been read and has not been changed (the read buffer). The vfs_cache_pressure controls the preference for evicting file metadata relative to file contents.
Oct
6
revised Linux speed up by moving files to ramdisk at start
added 29 characters in body
Oct
3
answered Linux speed up by moving files to ramdisk at start
Jul
19
awarded  Yearling
Jul
2
awarded  Curious
Apr
7
comment Linux to linux USB storage?
aware of infiniband - but hardware is only cheap off eBay, requires expensive cabling too and I've only ever seen PCI[e] host adapters. Further, this means running the data on top of TCP/IP with all the complications regarding congestion avoidance. Thanks for the link though.
Apr
7
comment Linux to linux USB storage?
cablewholesale.com/support/technical_articles/… says "will allow for two host devices to be connected directly with a USB 3.0 crossover cable" and it seems that these are available.
Apr
7
comment Linux to linux USB storage?
That was my concern - finding the hardware (since posting I found this: linux-usb.org/gadget/file_storage.html which seems to solve the software problem)
Apr
7
asked Linux to linux USB storage?
Feb
7
comment Full path name of bash? and base process of Linux?
Why are which and whereis bad? (doh - then I opened the link - ignore me)
Jan
14
comment CUPS denies access to printer
No, none of the config is changed (and nothing noted in cups logs) when I run lpadmin. The classes file is empty and printers.conf has nothing relating to browsing/access control.
Jan
13
asked CUPS denies access to printer
Dec
30
answered Find files systemwide that are created within a date range
Dec
24
answered Bandwidth Management tool
Nov
25
comment How to migrate files on Linux from HDD to SSD on a VDS
Some applications don't like symlinks in certain contexts - e.g. opinting your document_root in apache to a symlink will result in lots of 404 errors if you've configure -FollowSymLinks. Further you may run into concurrency issues if the same file is accessed via different paths. NB I'm not saying this is not the way to fox the problem, just that there are hidden gremlins with symlinks.
Nov
25
comment Is it possbile to mount Windows filesystems without using the root account?
@binghenzq: they don't require the root password at the time of mounting. If you don't have root acces on the machine it's still possible to access an SMB filesystem (using smbclient) but it's not possible to mount any filesystem. If nobody knows the root password then your system is highly vulnerable and this MUST be resolved.
Nov
25
answered Is it possbile to mount Windows filesystems without using the root account?
Nov
20
answered How can I change my username?
Nov
11
answered Can I pipe lpt port over tcp?