tag:blogger.com,1999:blog-3371782421424820108.comments2024-01-19T19:10:46.482-08:00System Notes Orgscottmhttp://www.blogger.com/profile/00499296514586474301noreply@blogger.comBlogger28125tag:blogger.com,1999:blog-3371782421424820108.post-89863365517314466132019-02-05T18:39:59.126-08:002019-02-05T18:39:59.126-08:00Here is a new cloud mining option by the well know...Here is a new cloud mining option by the well known bitmain, maker of the AntMiner ASIC bitcoin miners.<br /><br />https://www.bitdeer.com<br /><br />https://www.bitdeer.com/i/MTM0LDEyOSwxMzEsMTM2LDEzNywxMzM=<br />scottmhttps://www.blogger.com/profile/00499296514586474301noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-13177371966779747162019-02-05T11:28:14.221-08:002019-02-05T11:28:14.221-08:00I have hesitated to recommend Exchanges, sites, or...I have hesitated to recommend Exchanges, sites, or products, since things change rapidly, and it can be difficult to know who to trust. Here are some that are still good in 2019:<br /><br />Cryptocurrency Trading Platforms<br />https://www.binance.com<br />https://www.poloniex.com<br /><br />Bitcoin Mining<br />https://bitmain.com<br /><br />scottmhttps://www.blogger.com/profile/00499296514586474301noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-40284786311135511922019-02-05T11:20:22.373-08:002019-02-05T11:20:22.373-08:00
Ledger has a new hardware wallet, shipping in Mar...<br />Ledger has a new hardware wallet, shipping in March, 2019:<br /><br />https://www.ledger.com/products/ledger-nano-x<br /><br />scottmhttps://www.blogger.com/profile/00499296514586474301noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-39067394901544670222013-08-14T02:46:22.751-07:002013-08-14T02:46:22.751-07:00This comment has been removed by a blog administrator.Anonymoushttps://www.blogger.com/profile/02552352397279475190noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-62575976059159645322012-12-09T04:26:18.339-08:002012-12-09T04:26:18.339-08:00Dazzling post thanks a lot for posting...Dazzling post thanks a lot for posting...web designer in ukhttp://itwebconsultancy.com/noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-65455768184614537312012-02-28T22:24:18.243-08:002012-02-28T22:24:18.243-08:00That was not exactly what I had in mind, Anonymous...That was not exactly what I had in mind, Anonymous.<br />The subnet.dat file does not need to have each host in the subnet, since nmap can take the wildcard input. So nmap would automatically expand 192.168.1.* to each host in the subnet.<br /><br />Your example creates multiple host entries, when all we need to know is what subnets to scan.<br /><br />Here is a way to create the subnet.dat file:<br />$ for i in {1..10}; do echo 192.168.${i}.*;done > subnet.dat<br /><br />$ cat subnet.dat<br />192.168.1.*<br />192.168.2.*<br />192.168.3.*<br />192.168.4.*<br />192.168.5.*<br />192.168.6.*<br />192.168.7.*<br />192.168.8.*<br />192.168.9.*<br />192.168.10.*<br /><br />For further information on this topic, see <a href="http://systemnotesorg.blogspot.com/2007/12/ping-multiple-hosts-using-bash-nmap-and.html" rel="nofollow">http://systemnotesorg.blogspot.com/2007/12/ping-multiple-hosts-using-bash-nmap-and.html</a> and <a href="http://systemnotesorg.blogspot.com/search/label/for%20loop" rel="nofollow">http://systemnotesorg.blogspot.com/search/label/for%20loop</a>scottmhttps://www.blogger.com/profile/00499296514586474301noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-39244344492386509712012-02-26T02:34:15.162-08:002012-02-26T02:34:15.162-08:00Creating a subnet.dat file like this:
echo 192.168...Creating a subnet.dat file like this:<br />echo 192.168.1.{1..254} >subnet.dat ?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-44072129696179444922011-10-21T11:16:02.757-07:002011-10-21T11:16:02.757-07:00Excellent point by Thunder Emperor. Sometimes it&#...Excellent point by Thunder Emperor. Sometimes it's easier to deal with return values instead of trying to format the output of a program such as ping which may be different across platforms.<br /><br />Here is one way to use $?. You just have to be aware that 0 = success (host is up), 1 = ping failed (host is down), 2 = unknown host (host is not in DNS). Of course you can program the output as you like, but this example is not bad for a quick on-liner.<br /><br />$ for host in abc-01 abc-02 abc-03 xyz-01; do ping -c 1 $host > /dev/null 2>&1; echo $host: $?;done<br /><br />abc-01: 0<br />abc-02: 0<br />abc-03: 1<br />xyz-01: 2<br />$<br /><br />Note that you can either redirect stderrm, or use "| grep -v ping" to get rid of the extra line of output for unknown hosts, e.g.:<br /><br />ping: unknown host xyz-01<br />xyz-01: 2<br /><br />This should give the same results:<br /><br />$ for host in abc-01 abc-02 abc-03 xyz-01; do ping -c 1 $host > /dev/null; echo $host: $?;done| grep -v pingscottmhttps://www.blogger.com/profile/00499296514586474301noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-80766074536877604122011-10-21T05:24:04.813-07:002011-10-21T05:24:04.813-07:00Even when we use the for loop method, a cleaner wa...Even when we use the for loop method, a cleaner way will be to ditch the output by redirecting it out to dev null and then checking the $? value and directly ping itThunder Emperorhttps://www.blogger.com/profile/17080678595989876640noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-72377443734448182402011-03-31T00:27:21.873-07:002011-03-31T00:27:21.873-07:00A professional with CCNP training is considered to...A professional with CCNP training is considered to have the ability of working with medium-sized networks with technology, such as VPNs, QoS, broadband, and security-minded features. In addition to CCNA exams, professionals must pass either four separate exams, or a composite exam along with two separate exams for becoming a CCNP certified professional.pardeep sammyhttp://networkersguru.com/courses/ccna-training-in-gurgaon.htmlnoreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-1739494595209449182011-03-12T06:39:59.911-08:002011-03-12T06:39:59.911-08:00This information is great! It is so good to hear t...This information is great! It is so good to hear that even undergrads can take IT Certifications.<br /><br />Your post and experience really inspired me to further this certification. Thanks a lot for the post!Archie @ it certificationhttp://www.techtrainingonline.com/noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-25717679168065487552011-02-04T12:48:42.111-08:002011-02-04T12:48:42.111-08:00Alvaro Q.
Español: Tiene razón. Se puede usar un ...Alvaro Q.<br /><br />Español: Tiene razón. Se puede usar un subnet, pero a veces quieres limitar la búsqueda a unas cuantas máquinas. Por ejemplo, una red puede tener 10,000 máquinas, y solo quiero saber que pasa con 200. Yo uso un archivo como esta (subnets.net), que puede tener muchas redes (subnets). De ahí saco la lista de máquinas que me interesan, pero también se puede buscar información de todas las máquinas prendías o apagadas.<br /><br /><br />English:<br />Alvro Q. is correct. You can simply specify a subnet, but you may want to check just a few hosts. For example, a network may contain 10,000 hosts, but you are interested in only 200. I use a file like this (subnets.net) that may contain many networks. I use that to extract the hosts I am interested in, but there may be times when you want to find all hosts that are up or down.<br /><br />subnets.net<br />192.168.1.*<br />192.168.2.*<br />192.168.3.*<br />192.168.4.*<br />10.1.1.*<br />10.1.2.*scottmhttps://www.blogger.com/profile/00499296514586474301noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-15849414854303896982011-02-03T19:13:45.655-08:002011-02-03T19:13:45.655-08:00# nmap -sP -R 192.168.1.0/24 | grep up
Host 192.1...# nmap -sP -R 192.168.1.0/24 | grep up<br />Host 192.168.1.1 is up.<br />Host 192.168.1.2 is up (0.00038s latency).<br />Host 192.168.1.11 is up (0.000089s latency).<br />Nmap done: 256 IP addresses (3 hosts up) scanned in 5.54 seconds<br /><br />Asi tambien funciona, Gracias!!Alvaro Q.noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-56890463801485762642011-01-26T05:19:16.213-08:002011-01-26T05:19:16.213-08:00Interesting post..thank you for posting it here.Interesting post..thank you for posting it here.Custom LAN/WAN Applicationshttp://www.ecatechnologies.com/noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-32307094906987091772010-12-13T10:21:56.155-08:002010-12-13T10:21:56.155-08:00I am glad people find this useful.I am glad people find this useful.scottmhttps://www.blogger.com/profile/00499296514586474301noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-29939838256999550722010-12-12T23:26:30.443-08:002010-12-12T23:26:30.443-08:00Thats what i needed for System monitoring!
Thanks ...Thats what i needed for System monitoring!<br />Thanks a lot <b>Sir!</b>Tejas Bhaleraohttps://www.blogger.com/profile/11523211412086743847noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-839446683435265232010-06-19T01:15:39.400-07:002010-06-19T01:15:39.400-07:00The links appear to be working fine now. You can ...The links appear to be working fine now. You can download a pdf from here:<br /><a href="http://www.systemnotes.org/download/rhce/RHCE-Flash-Cards.pdf" rel="nofollow">http://www.systemnotes.org/download/rhce/RHCE-Flash-Cards.pdf</a>scottmhttps://www.blogger.com/profile/00499296514586474301noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-78457990640735989992010-02-06T05:36:43.118-08:002010-02-06T05:36:43.118-08:00unfortunately there is broken link , please can y...unfortunately there is broken link , please can you send this flash card on my email z.dabash@gmail.comdabashhttps://www.blogger.com/profile/01961333122736592480noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-29017284120832340832009-12-17T14:29:19.539-08:002009-12-17T14:29:19.539-08:00Here is a nice discussion of a simple text manipul...Here is a nice discussion of a simple text manipulation problem at unixforum.co.uk.<br /><br /><a href="http://www.unixforum.co.uk/topic/32081-text-file-manipulation-adding-a-digittext-to-the-end-of-a-row/" rel="nofollow">http://www.unixforum.co.uk/topic/32081-text-file-manipulation-adding-a-digittext-to-the-end-of-a-row/</a><br /><br />This is a good example of how sed and awk can be used to edit a data file, so I posted a reply with some one-liners.scottmhttps://www.blogger.com/profile/00499296514586474301noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-36088612981890978772009-02-17T01:21:00.000-08:002009-02-17T01:21:00.000-08:00SPOT ONSPOT ONAnonymoushttps://www.blogger.com/profile/02488151456566300676noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-5581154361852761462008-05-19T08:28:00.000-07:002008-05-19T08:28:00.000-07:00Great round up! Love the explanation of using awk ...Great round up! Love the explanation of using awk here as well, so many things to do on the command line, this is where BASH shines, tying them all together with a for loop!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-34206648318955926422008-04-15T12:48:00.000-07:002008-04-15T12:48:00.000-07:00Excellent point by FlawlessWalrus. My article dis...Excellent point by FlawlessWalrus. My article discuses credit for IT certifications, but there are other very good online options for undergraduate degrees. There are even some Ivy league schools that offer online graduate degrees. For example, Stanford and Columbia both offer complete masters degree programs that are available entirely online.<BR/><BR/><A HREF="http://scpd.stanford.edu/scpd/default.htm" REL="nofollow">http://scpd.stanford.edu/scpd/default.htm</A><BR/><A HREF="http://www.cvn.columbia.edu/" REL="nofollow">http://www.cvn.columbia.edu/</A><BR/><BR/>Distance education is becoming more popular. This may be a good topic for another article. :-)scottmhttps://www.blogger.com/profile/00499296514586474301noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-65734812295564220752008-04-15T06:30:00.000-07:002008-04-15T06:30:00.000-07:00Thomas Edison State College in NJ and Charter Oak ...Thomas Edison State College in NJ and Charter Oak State College in CT are the other 2 public colleges that operate entirely online like Excelsior.Anonymoushttps://www.blogger.com/profile/09362191564363045554noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-66061077081838499142007-12-02T23:45:00.000-08:002007-12-02T23:45:00.000-08:00Here is the link to the article on linux equivalen...Here is the link to the article on linux equivalents mentioned above:<BR/><A HREF="http://www.linuxscrew.com/2007/11/22/windows-software-linux-software/" REL="nofollow">http://www.linuxscrew.com/2007/11/22/windows-software-linux-software/</A><BR/><BR/>For some reason it gets cut off, but if you use an href, the link can be followed.scottmhttps://www.blogger.com/profile/00499296514586474301noreply@blogger.comtag:blogger.com,1999:blog-3371782421424820108.post-68917885973205132282007-11-28T01:06:00.000-08:002007-11-28T01:06:00.000-08:00A related list. Here is a list of linux equivalen...A related list. Here is a list of linux equivalents for common Windows software. Many of the programs also have Windows and Mac versions, as well:<BR/><BR/>http://www.linuxscrew.com/2007/11/22/windows-software-linux-software/Anonymousnoreply@blogger.com