I actually used to do some multitasking under DOS, running more than one of my own tasks at the same time. It all had to be coded by hand fooling around with the timer interrupt to do my own time slicing. TSR programs were in the picture too...
Unless we're returning to the 1940s and wiring up tubes to make programs,
I had a few games on bootable floppies back in the original PC days, around 1985. The floppies would boot up the computer right into the game so there was no OS involved. And no, BIOS is not some kind of bisexual OS, it stands for Basic Input/Output System.
OrgName: DoD Network Information Center OrgId: DNIC Address: 3990 E. Broad Street City: Columbus StateProv: OH PostalCode: 43218 Country: US RegDate: Updated: 2011-08-17 Ref: http://whois.arin.net/rest/org/DNIC
So he is the guy responsible for all these logs on my firewall. I am glad he is over with his research. Those nasty log lines and the alerts I get should now go away!
Mar 19 14:08:29 myhost sshd[15477]: Failed password for root from 58.247.50.59 port 33203 ssh2 Mar 19 14:08:26 myhost sshd[15475]: Failed password for root from 58.247.50.59 port 60725 ssh2 Mar 19 14:08:24 myhost sshd[15473]: Failed password for root from 58.247.50.59 port 59984 ssh2 Mar 19 14:08:22 myhost sshd[15471]: Failed password for root from 58.247.50.59 port 59254 ssh2 Mar 19 14:08:19 myhost sshd[15469]: Failed password for root from 58.247.50.59 port 58527 ssh2 Mar 19 14:08:17 myhost sshd[15465]: Failed password for root from 58.247.50.59 port 57790 ssh2 Mar 19 14:08:16 myhost sshd[15463]: Failed password for root from 58.247.50.59 port 57082 ssh2 Mar 19 14:08:13 myhost sshd[15461]: Failed password for root from 58.247.50.59 port 56363 ssh2 Mar 19 14:08:11 myhost sshd[15459]: Failed password for root from 58.247.50.59 port 55647 ssh2 Mar 19 14:08:09 myhost sshd[15457]: Failed password for root from 58.247.50.59 port 54922 ssh2 Mar 19 14:08:06 myhost sshd[15455]: Failed password for root from 58.247.50.59 port 54195 ssh2 Mar 19 14:08:04 myhost sshd[15453]: Failed password for root from 58.247.50.59 port 53487 ssh2 Mar 19 14:08:01 myhost sshd[15449]: Failed password for root from 58.247.50.59 port 52734 ssh2 Mar 19 14:07:59 myhost sshd[15447]: Failed password for root from 58.247.50.59 port 52018 ssh2 Mar 19 14:07:57 myhost sshd[15445]: Failed password for root from 58.247.50.59 port 49218 ssh2 Mar 19 14:08:38 myhost kernel: CONNECT LIMIT: IN=eth2 OUT= MAC=00:0a:cd:1c:43:7d:00:26:cb:70:f0:4f:08:00 SRC=58.247.50.59 DST=X.X.X.X LEN=60 TOS=0x00 PREC=0x00 TTL=46 ID=12700 DF PROTO=TCP SPT=33971 DPT=22 WINDOW=14600 RES=0x00 SYN URGP=0 Mar 19 14:08:32 myhost kernel: CONNECT LIMIT: IN=eth2 OUT= MAC=00:0a:cd:1c:43:7d:00:26:cb:70:f0:4f:08:00 SRC=58.247.50.59 DST=X.X.X.X LEN=60 TOS=0x00 PREC=0x00 TTL=46 ID=12699 DF PROTO=TCP SPT=33971 DPT=22 WINDOW=14600 RES=0x00 SYN URGP=0 Mar 19 14:08:29 myhost kernel: CONNECT LIMIT: IN=eth2 OUT= MAC=00:0a:cd:1c:43:7d:00:26:cb:70:f0:4f:08:00 SRC=58.247.50.59 DST=X.X.X.X LEN=60 TOS=0x00 PREC=0x00 TTL=46 ID=12698 DF PROTO=TCP SPT=33971 DPT=22 WINDOW=14600 RES=0x00 SYN URGP=0
Just catch all outgoing DNS at your router and redirect them to your own DNS server or OpenDNS if you wish. Much easier and especially much more fail safe.
ISPs should offer a service to block it for you so you dont have to pay for the bandwidth...
I truely believe that if the ads were not so horribly intrusive and bandwith hogging,..
What kind of bandwidth are you talking about?
He wants to block web content, not email spam. When you block a web site with squid, hosts file, firewall etc., you use zero bandwidth to connect to the site.
Actually, you may end up using more bandwidth blocking web content at the ISP level because your HTTP requests could still get to the ISP along with a HTTP response.
"Update2: to works on WAN port if http admin is open WAN"
Well there's a gaping hole, most of the routers I've owned, you can enable the admin on the LAN or the LAN+WIFI, I've never seen one you can open the admin page to the WAN.
Still, not quite the hyperbole in the Slashdot summary though!
I have seen many, here is 2 examples
TP-LINK: 54M Wireless Router Model No. TL-WR340G/TL-WR340GD
This reminds me of the vonage PAP2 case where you could unlock the PAP2 device by intercepting the tftp connection the device made to vonage the first time it got plugged in after you bought it from the store. You would redirect the connection to your own tftp server and basically tell the device to unlock itself.
The device was worth 70$ and vonage sold it for 10$ locked.
Some devices can easily be told to reconfigure themselves by simply telling them to download a configuration file through tftp, All you need is a running tftp server and sometimes IP/ports redirection and/or fake DNS entries really...
When Facebook engineers spill coffee on their keyboard
A company like Facebook doesn't need any engineers although some might work for them. Engineers typically work for companies like Intel, Cisco, etc.
I am a software architect but not an engineer by trade. The "engineer" term is abused a lot. The funniest thing I have heard is the "engineer" driving the locomotive on a railway train. His title is "engine man" in realty. Apparently, if you say it quickly enough many times, "engine man" becomes "engineer". Michael Schumacher should be called an "engineer" before anybody driving a train !
Just see how the following links do not add up if you believe a locomotive driver is an "engineer" and apply the same to Facebook engineers :
Slashdot Mirror
I actually used to do some multitasking under DOS, running more than one of my own tasks at the same time. It all had to be coded by hand fooling around with the timer interrupt to do my own time slicing. TSR programs were in the picture too...
https://en.wikipedia.org/wiki/Terminate_and_Stay_Resident
"may change our understanding of how long does it take to bring a server up"
This sentence is writed by no-brains.
This sentence is written by no-brains
-The editor
Unless we're returning to the 1940s and wiring up tubes to make programs,
I had a few games on bootable floppies back in the original PC days, around 1985. The floppies would boot up the computer right into the game so there was no OS involved. And no, BIOS is not some kind of bisexual OS, it stands for Basic Input/Output System.
Well, the OS-less platform providing the linked document was only up for 1 second and is therefore off-line now...
just use whois...
whois 11.0.0.0
The following results may also be obtained via:
http://whois.arin.net/rest/nets;q=11.0.0.0?showDetails=true&showARIN=false&ext=netref2
NetRange: 11.0.0.0 - 11.255.255.255
CIDR: 11.0.0.0/8
OriginAS:
NetName: DODIIS
NetHandle: NET-11-0-0-0-1
Parent:
NetType: Direct Allocation
RegDate: 1984-01-19
Updated: 2007-08-22
Ref: http://whois.arin.net/rest/net/NET-11-0-0-0-1
OrgName: DoD Network Information Center
OrgId: DNIC
Address: 3990 E. Broad Street
City: Columbus
StateProv: OH
PostalCode: 43218
Country: US
RegDate:
Updated: 2011-08-17
Ref: http://whois.arin.net/rest/org/DNIC
OrgTechHandle: MIL-HSTMST-ARIN
OrgTechName: Network DoD
OrgTechPhone: 1-614-692-2708
OrgTechEmail: HOSTMASTER@nic.mil
OrgTechRef: http://whois.arin.net/rest/poc/MIL-HSTMST-ARIN
OrgTechHandle: REGIS10-ARIN
OrgTechName: Registration
OrgTechPhone: 1-800-365-3642
OrgTechEmail: registra@nic.mil
OrgTechRef: http://whois.arin.net/rest/poc/REGIS10-ARIN
OrgAbuseHandle: REGIS10-ARIN
OrgAbuseName: Registration
OrgAbusePhone: +1-800-365-3642
OrgAbuseEmail: registra@nic.mil
OrgAbuseRef: http://whois.arin.net/rest/poc/REGIS10-ARIN
ARIN WHOIS data and services are subject to the Terms of Use
available at: https://www.arin.net/whois_tou.html
Did you install cat 5 cables with rat repellent ?
http://www.okidensen.co.jp/en/prod/cable/lan/mouse_lan.html
I remember seeing one resting in a nuclear plant pool in the X-Files...
look at the last lines in my OP:
I use iptable to achieve the same...
Mar 19 14:08:29 myhost kernel: CONNECT LIMIT: IN=eth2 OUT= MAC=00:0a:cd:1c:43:7d:00:26:cb:70:f0:4f:08:00 SRC=58.247.50.59 DST=X.X.X.X LEN=60 TOS=0x00 PREC=0x00 TTL=46 ID=12698 DF PROTO=TCP SPT=33971 DPT=22 WINDOW=14600 RES=0x00 SYN URGP=0
So he is the guy responsible for all these logs on my firewall. I am glad he is over with his research. Those nasty log lines and the alerts I get should now go away!
Mar 19 14:08:29 myhost sshd[15477]: Failed password for root from 58.247.50.59 port 33203 ssh2
Mar 19 14:08:26 myhost sshd[15475]: Failed password for root from 58.247.50.59 port 60725 ssh2
Mar 19 14:08:24 myhost sshd[15473]: Failed password for root from 58.247.50.59 port 59984 ssh2
Mar 19 14:08:22 myhost sshd[15471]: Failed password for root from 58.247.50.59 port 59254 ssh2
Mar 19 14:08:19 myhost sshd[15469]: Failed password for root from 58.247.50.59 port 58527 ssh2
Mar 19 14:08:17 myhost sshd[15465]: Failed password for root from 58.247.50.59 port 57790 ssh2
Mar 19 14:08:16 myhost sshd[15463]: Failed password for root from 58.247.50.59 port 57082 ssh2
Mar 19 14:08:13 myhost sshd[15461]: Failed password for root from 58.247.50.59 port 56363 ssh2
Mar 19 14:08:11 myhost sshd[15459]: Failed password for root from 58.247.50.59 port 55647 ssh2
Mar 19 14:08:09 myhost sshd[15457]: Failed password for root from 58.247.50.59 port 54922 ssh2
Mar 19 14:08:06 myhost sshd[15455]: Failed password for root from 58.247.50.59 port 54195 ssh2
Mar 19 14:08:04 myhost sshd[15453]: Failed password for root from 58.247.50.59 port 53487 ssh2
Mar 19 14:08:01 myhost sshd[15449]: Failed password for root from 58.247.50.59 port 52734 ssh2
Mar 19 14:07:59 myhost sshd[15447]: Failed password for root from 58.247.50.59 port 52018 ssh2
Mar 19 14:07:57 myhost sshd[15445]: Failed password for root from 58.247.50.59 port 49218 ssh2
Mar 19 14:08:38 myhost kernel: CONNECT LIMIT: IN=eth2 OUT= MAC=00:0a:cd:1c:43:7d:00:26:cb:70:f0:4f:08:00 SRC=58.247.50.59 DST=X.X.X.X LEN=60 TOS=0x00 PREC=0x00 TTL=46 ID=12700 DF PROTO=TCP SPT=33971 DPT=22 WINDOW=14600 RES=0x00 SYN URGP=0
Mar 19 14:08:32 myhost kernel: CONNECT LIMIT: IN=eth2 OUT= MAC=00:0a:cd:1c:43:7d:00:26:cb:70:f0:4f:08:00 SRC=58.247.50.59 DST=X.X.X.X LEN=60 TOS=0x00 PREC=0x00 TTL=46 ID=12699 DF PROTO=TCP SPT=33971 DPT=22 WINDOW=14600 RES=0x00 SYN URGP=0
Mar 19 14:08:29 myhost kernel: CONNECT LIMIT: IN=eth2 OUT= MAC=00:0a:cd:1c:43:7d:00:26:cb:70:f0:4f:08:00 SRC=58.247.50.59 DST=X.X.X.X LEN=60 TOS=0x00 PREC=0x00 TTL=46 ID=12698 DF PROTO=TCP SPT=33971 DPT=22 WINDOW=14600 RES=0x00 SYN URGP=0
Then all you do is block DNS traffic destined for any other DNS servers.
I find it more convenient to redirect DNS queries to the server you like instead of blocking them.
Some prefer not to advertise it on the network. I guess it depends on the situation...
It has the advantage of being extremely easy to do (just add a domain to the file), and i have noticed no slowdowns at all on my old netbook.
You should actually notice a speed up! Host file lookups are negligible compared to DNS lookups and HTTP queries...
Just catch all outgoing DNS at your router and redirect them to your own DNS server or OpenDNS if you wish. Much easier and especially much more fail safe.
ISPs should offer a service to block it for you so you dont have to pay for the bandwidth...
I truely believe that if the ads were not so horribly intrusive and bandwith hogging, ..
What kind of bandwidth are you talking about?
He wants to block web content, not email spam. When you block a web site with squid, hosts file, firewall etc., you use zero bandwidth to connect to the site.
Actually, you may end up using more bandwidth blocking web content at the ISP level because your HTTP requests could still get to the ISP along with a HTTP response.
I do it on the /etc/hosts level on my dns server.
What kind of DNS server software are you using?
I haven't seen yet a DNS server configured to read /etc/hosts. I am using BIND and I do not know if you can even make it read /etc/hosts.
Special services have been capable for several years not only to wiretap but also to locate a Skype user.
Special services have been capable for several years not only to wiretap but also to locate cellular phone and landline users.
"Update2: to works on WAN port if http admin is open WAN"
Well there's a gaping hole, most of the routers I've owned, you can enable the admin on the LAN or the LAN+WIFI, I've never seen one you can open the admin page to the WAN.
Still, not quite the hyperbole in the Slashdot summary though!
I have seen many, here is 2 examples
TP-LINK:
54M Wireless Router
Model No. TL-WR340G/TL-WR340GD
D-LINK:
Product Page: DIR-615
Hardware Version: E3 Firmware Version: 5.10
This reminds me of the vonage PAP2 case where you could unlock the PAP2 device by intercepting the tftp connection the device made to vonage the first time it got plugged in after you bought it from the store. You would redirect the connection to your own tftp server and basically tell the device to unlock itself.
The device was worth 70$ and vonage sold it for 10$ locked.
Some devices can easily be told to reconfigure themselves by simply telling them to download a configuration file through tftp, All you need is a running tftp server and sometimes IP/ports redirection and/or fake DNS entries really...
Do plan to backport Mir once released? ;-)
When Facebook engineers spill coffee on their keyboard
A company like Facebook doesn't need any engineers although some might work for them. Engineers typically work for companies like Intel, Cisco, etc.
I am a software architect but not an engineer by trade. The "engineer" term is abused a lot. The funniest thing I have heard is the "engineer" driving the locomotive on a railway train. His title is "engine man" in realty. Apparently, if you say it quickly enough many times, "engine man" becomes "engineer". Michael Schumacher should be called an "engineer" before anybody driving a train !
Just see how the following links do not add up if you believe a locomotive driver is an "engineer" and apply the same to Facebook engineers :
https://en.wikipedia.org/wiki/Engineer
https://en.wikipedia.org/wiki/Railroad_engineer
Mod this late post up please, I am out...
and you get plastic spots in the world's oceans that are the size of nation states.
Still, I do not how it occurred, but he just made me realize that it is the part that floats and that we do not see what has been dumped that doesn't.
I'm not sure why this is modded down.
Just click on the score, a pop-up should appear showing the post started at -1 and got +6 interesting , at the time I wrote this message.
So it was never modded down.
Sudden apparition of speed kills too,,, You know... Getting hit by something.
Soylent Green ?
https://en.wikipedia.org/wiki/Soylent_Green