similar to: Learned something today

Displaying 20 results from an estimated 10000 matches similar to: "Learned something today"

2016 Jan 11
0
Learned something today
On Sun, 2016-01-10 at 06:52 -0800, Alice Wonder wrote: > For me, I only need /tmp as tmpfs on my Bitcoin box - and then only when > generating private keys for cold storage, SSDs are often not very good > at securely deleting files. So I use tmpfs for /tmp and generate the > private keys for cold storage to a file in /tmp and then print it from > there (for storage in safe
2016 Jan 11
1
Learned something today
On 01/11/2016 06:50 AM, Always Learning wrote: > Why not, on start-up, create a 'ram disk' and do your sensitive work in > volatile RAM or is this what 'tmpfs' implies ? I think that's what OP expected tmpfs to be, but it should be noted that tmpfs *can* be swapped to disk, so it should not be used for data that you don't want to ever hit non-volatile storage
2016 Feb 24
2
Bitcoin for CentOS 7
For those interested I have a working spec file for Bitcoin 0.12.0 https://github.com/AliceWonderMiscreations/bitcoin/blob/master/contrib/rpm/bitcoin.spec I believe the only BuildRequires that isn't in CentOS/EPEL is miniupnpc-devel but that's trivial to build as well. With Bitcoin 0.12.0 the ECC stuff that Red Hat ripped out of OpenSSL doesn't matter anymore. -=- That spec file
2016 Feb 24
5
Bitcoin for CentOS 7
On 02/24/2016 06:04 AM, m.roth at 5-cent.us wrote: > Alice Wonder wrote: >> For those interested I have a working spec file for Bitcoin 0.12.0 >> >> https://github.com/AliceWonderMiscreations/bitcoin/blob/master/contrib/rpm/bitcoin.spec >> >> I believe the only BuildRequires that isn't in CentOS/EPEL is >> miniupnpc-devel but that's trivial to build
2002 Apr 29
1
Offtopic: nfs, tmpfs and `getfh failed: Operation not permitted'
Sorry this is off-topic, but I'm scrambling to get this system in, google didn't help, and I'm sure someone on this list knows the answer cold. I'm trying to nfs-export a tmpfs disk. I saw a hint from a response about ram disks... which leads to my guess that tmpfs simply doesn't implement some method that nfsd needs. I can probably survive without tmpfs, but I'd like to
2016 Mar 07
3
Keep the politics out, please?
With this post, I run the risk of causing more of the thing that I speak against. I still think it's important to say it. CentOS mailing list is a technical forum. It is not a political forum. Just reading a thread on bitcoins and the entire thread quickly turned into a political thread with people bitching about everything from Chase Bank to the Russians, and that's just crap.
2008 May 09
1
disk partitioning - I'm missing something simple, I think
Hi all, Excuse the question as I'm sure those more experienced will find it simple. I've a CentOS5.1 box with six physical drives, two of which are used for nightly rsync backups. Contents of /etc/mtab, /etc/fstab, df and a brief narrative follow: ====================================================== # cat ./fstab /dev/VolGroup00/LogVol00 / ext3 defaults
2013 May 14
1
Problem with R websocket package
Hello to everybody,   I seem to be in struggle with the websockets in R. I wanted to download the streaming data from the BitCoin exchange MtGox directly to R, but R cannot establish the connection. The websocket specs are defined as: * Host: websocket.mtgox.com or socketio.mtgox.com * Port: 80 or 443 ( ssl ) * Namespace: /mtgox (Including beginning slash) url for more
2018 Jan 02
3
Help with first S3-class
Hi, I am trying to understand S3 classes. I have read several tutorials about the topics but I am still a bit confused. I guess it is because it is so different from Java OOP. I have pasted my attempt at creating a bank-account class below and my problems are: 1. What should be added some plot.default() calls the account$plot() method ? 2. What should the account$plot() be implemented to
2017 Feb 25
4
RHEL 8 speculation ???
Is there any blog that has information on a potential RHEL 8 release date? boost in 7 is now too old for some things, in addition to gcc. There are solutions in 7 to those issues but it's starting to feel like 6 felt shortly before 7 came out, so I wonder if it is getting near to time. I'm working on a major project bitcoin related and it would be frustrating to deploy a bunch of
2018 Jan 02
0
Help with first S3-class
On 02/01/2018 6:38 PM, Martin M?ller Skarbiniks Pedersen wrote: > Hi, > > I am trying to understand S3 classes. I have read several tutorials about > the topics but I am still a bit confused. I guess it is because it is > so different from > Java OOP. What you do below isn't S3. S3 is a system where the classes are secondary to the generic functions. Methods
2007 Jan 19
3
Something cool I learned about rspec today
I found an awesome feature today. When you''re setting expectations, you can actually pattern match the parameters to methods. Here''s my discussion and example: http://evang.eli.st/blog/2007/1/19/parameter-matching-in-rspec Pat
2002 Sep 14
0
GREETINGS
Good Day, With warm heart I offer my friendship, and my greetings, and I hope this letter meets you in good time. It will be surprising to you to receive this proposal from me since you do not know me personally. However, I am sincerely seeking your confidence in this transaction, which I propose with my free mind and I hope you will open-heartedly read through and give me your most needed
2019 Apr 20
3
Does devtmps and tmpfs use underlying hard disk storage or Physical Memory (RAM)
Hi, I am running the below command on CentOS Linux release 7.6.1810 (Core) # df -hT --total Filesystem Type Size Used Avail Use% Mounted on /dev/xvda1 xfs 150G 8.0G 143G 6% / devtmpfs devtmpfs 7.8G 0 7.8G 0% /dev tmpfs tmpfs 7.8G 0 7.8G 0% /dev/shm tmpfs tmpfs 7.8G 817M 7.0G 11% /run tmpfs tmpfs 7.8G 0
2010 Dec 01
2
tmpfs says "No space left on device"
I have a server where we use tmpfs as a cache for temporary files used by a web application. But occasionally this tmpfs thinks it is full when it isn't. [root at flask-yellow tmpfs]# touch file touch: cannot touch `file': No space left on device [root at flask-yellow tmpfs]# df -k Filesystem 1K-blocks Used Available Use% Mounted on none 393216 19296
2019 Oct 22
2
C8 regression / tmp on tmpfs
Am 22.10.19 um 04:52 schrieb Orion Poplawski: > On 10/21/19 3:42 PM, Leon Fauster via CentOS wrote: >> Does someone have a working tmp on tmpfs via >> >> systemctl enable tmp.mount >> >> under CentOS8/RHEL8? This seems to work straight in EL7 ... >> >> >> # LANG=C systemctl enable tmp.mount >> The unit files have no installation config
2006 Apr 11
1
Re: update - 512 Simultaneous Callswith DigitalRecording
> Are there any advantages/disadvantages to using tmpfs as opposed to the > following method: Matt, Its simple. To quote the docs, "tmpfs lives entirely in the kernel's caches" It will shrink and grow to accommodate the files that currently on the filesystem. So if you allocate 10GB for your /tmp but only use 500MB it will only use 500MB of RAM. Think of the time your server
2005 Mar 23
2
pauses sync'ing between tmpfs and disk on Linux 2.4.x
I've set up a 1GB tmpfs filesystem on a system with a single IDE disk and 2GB's of memory. I'm storing a large amount of RRD files (~300MB) on the tmpfs filesystem to make their generation a bit speedier... this part works great. However, I want to rsync these files over from time to time to a directory on the local filesystem (same physical server). I'm using rsync 2.6.4pre3
2003 Apr 26
8
blackmail attempt? Stable mailing list block?
I got some weird mail back, claiming that my e-mail was blocked, w/o indicating what server was blocked, after the mail appeared in the mailing list. Is this some BS shakedown? I use postfix on a DSL line forwarding to earthlink, this is hardly something that should be rare in the BSD world... the mail appeared to come from a web mail server and the first link has the following lovely text:
2018 May 21
2
split brain? but where?
Hi, I seem to have a split brain issue, but I cannot figure out where this is and what it is, can someone help me pls, I cant find what to fix here. ========== root at salt-001:~# salt gluster* cmd.run 'df -h' glusterp2.graywitch.co.nz: Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root