Block repeated illegal or failed SSH logins - Revision history

Jimbo: Reverted edits by DavidYoung (talk) to last revision by 209.6.38.187

2012-08-25T21:22:47Z

Reverted edits by DavidYoung (talk) to last revision by 209.6.38.187

DavidYoung: minor updates

2012-08-24T10:36:24Z

minor updates

209.6.38.187: Spam cleanup

2012-08-21T22:42:31Z

Spam cleanup

DavidYoung: minor updates

2012-08-16T23:22:02Z

minor updates

93.94.245.13: /* sshd-fwscan.sh */

2011-12-02T12:20:03Z

sshd-fwscan.sh

93.94.245.13: /* sshd-fwscan.sh */

2011-12-02T10:44:24Z

sshd-fwscan.sh

211.30.176.242: /* Firewall repeated illegal or failed SSH logins attempts */

2011-03-05T16:19:37Z

Firewall repeated illegal or failed SSH logins attempts

Jimbo: Reverted edits by Sally (Talk); changed back to last version by Jimbo

2010-01-06T01:23:31Z

Reverted edits by Sally (Talk); changed back to last version by Jimbo

Sally: /* External links */

2010-01-05T14:52:07Z

External links

Jimbo: Reverted edits by 200.253.115.18 (Talk); changed back to last version by Jimbo

2009-11-18T00:58:52Z

Reverted edits by 200.253.115.18 (Talk); changed back to last version by Jimbo

← Older revision		Revision as of 21:22, 25 August 2012
Line 127:		Line 127:

	[[Category:Securing FreeBSD]]		[[Category:Securing FreeBSD]]
−
−	~~== Student Goes From Homeless to Harvard ==~~
−
−	Despite being abandoned to homelessness by her parents, Dawn Loggins worked as a high school custodian by day and studied hard by night to become the first person from her school to ever be admitted to Harvard.
−
−	~~[[http://goodvillenews.com/Student-Goes-From-Homeless-to-Harvard-QX9Vg4.html Student Goes From Homeless to Harvard]]~~
−
−	~~[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]~~
−
−	~~== The Power of Words and Emotional Bonding! ==~~
−
−	If you become steadfast in your abstentions of thoughts of harm directed toward others, all living creatures will cease to feel enmity in your presence. PatanjaliWords have power, incredible power, and this power lies in each and every one of us. Of course, its up to us to use this power for the greater good of all or not.
−
−	~~[[http://goodvillenews.com/The-Power-of-Words-and-Emotional-Bonding-2wgncv.html The Power of Words and Emotional Bonding!]]~~
−
−	~~[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]~~
−
−	~~== Cat Saves Owner Hours After Adoption ==~~
−
−	~~A newly-adopted cat repaid his owners loving gesture earlier this month by saving her from a medical emergency just hours after he was brought home, the Green Bay Press Gazette reports.~~
−
−	~~[[http://goodvillenews.com/Cat-Saves-Owner-Hours-After-Adoption-ixHpp7.html Cat Saves Owner Hours After Adoption]]~~
−
−	~~[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]~~
−
−	~~== Journey to the End of the Earth ==~~
−
−	I realized quickly, after just having traveled to various villages in rural India, that distance is relative. Hailing from a city like San Francisco, going even a few hours outside of town is far but twelve hours outside of a major city? I half expected to run into another country.
−
−	~~[[http://goodvillenews.com/Journey-to-the-End-of-the-Earth-tbNql3.html Journey to the End of the Earth]]~~
−
−	~~[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]~~
−
−	~~== Disney Brings "Cars" To Life With Cars Land ==~~
−
−	After five years in the making, Disney California Adventure is finally ready to rev up the engines on Cars Land. Disneys latest creation, based on the hit Pixar movie, brings the popular characters to life at Disney California Adventure.
−
−	~~[[http://goodvillenews.com/Disney-Brings-Cars-To-Life-With-Cars-Land-YfdwZj.html Disney Brings "Cars" To Life With Cars Land]]~~
−
−	~~[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]~~

← Older revision		Revision as of 10:36, 24 August 2012
Line 127:		Line 127:

	[[Category:Securing FreeBSD]]		[[Category:Securing FreeBSD]]
		+
		+	== Student Goes From Homeless to Harvard ==
		+
		+	Despite being abandoned to homelessness by her parents, Dawn Loggins worked as a high school custodian by day and studied hard by night to become the first person from her school to ever be admitted to Harvard.
		+
		+	[[http://goodvillenews.com/Student-Goes-From-Homeless-to-Harvard-QX9Vg4.html Student Goes From Homeless to Harvard]]
		+
		+	[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]
		+
		+	== The Power of Words and Emotional Bonding! ==
		+
		+	If you become steadfast in your abstentions of thoughts of harm directed toward others, all living creatures will cease to feel enmity in your presence. PatanjaliWords have power, incredible power, and this power lies in each and every one of us. Of course, its up to us to use this power for the greater good of all or not.
		+
		+	[[http://goodvillenews.com/The-Power-of-Words-and-Emotional-Bonding-2wgncv.html The Power of Words and Emotional Bonding!]]
		+
		+	[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]
		+
		+	== Cat Saves Owner Hours After Adoption ==
		+
		+	A newly-adopted cat repaid his owners loving gesture earlier this month by saving her from a medical emergency just hours after he was brought home, the Green Bay Press Gazette reports.
		+
		+	[[http://goodvillenews.com/Cat-Saves-Owner-Hours-After-Adoption-ixHpp7.html Cat Saves Owner Hours After Adoption]]
		+
		+	[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]
		+
		+	== Journey to the End of the Earth ==
		+
		+	I realized quickly, after just having traveled to various villages in rural India, that distance is relative. Hailing from a city like San Francisco, going even a few hours outside of town is far but twelve hours outside of a major city? I half expected to run into another country.
		+
		+	[[http://goodvillenews.com/Journey-to-the-End-of-the-Earth-tbNql3.html Journey to the End of the Earth]]
		+
		+	[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]
		+
		+	== Disney Brings "Cars" To Life With Cars Land ==
		+
		+	After five years in the making, Disney California Adventure is finally ready to rev up the engines on Cars Land. Disneys latest creation, based on the hit Pixar movie, brings the popular characters to life at Disney California Adventure.
		+
		+	[[http://goodvillenews.com/Disney-Brings-Cars-To-Life-With-Cars-Land-YfdwZj.html Disney Brings "Cars" To Life With Cars Land]]
		+
		+	[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]

← Older revision		Revision as of 22:42, 21 August 2012
Line 127:		Line 127:

	[[Category:Securing FreeBSD]]		[[Category:Securing FreeBSD]]
−
−	~~== Why Have Good When You Can Have Better? ==~~
−
−	~~As I look back on my life, I realize that every time I thought I was being rejected from something good, I was actually being re-directed to something better. Steve Maraboli~~
−
−	~~[[http://goodvillenews.com/Why-Have-Good-When-You-Can-Have-Better-PdMtIo.html Why Have Good When You Can Have Better?]]~~
−
−	~~[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]~~
−
−	~~== 7 Essential Books on Optimism ==~~
−
−	Every once in a while, we all get burned out. Sometimes, charred. And while a healthy dose of cynicism and skepticism may help us get by, its in those times that we need nothing more than to embrace lifes promise of positivity with open arms. Here are seven wonderful books that help do just that with an arsenal ranging from the light visceral stimulation of optimistic design to the serious neuroscience findings about our proclivity for the positive.
−
−	~~[[http://goodvillenews.com/7-Essential-Books-on-Optimism-6pgcLt.html 7 Essential Books on Optimism]]~~
−
−	~~[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]~~
−
−	~~== 5 Easy Steps to Turn Your Life Into an Abundant Garden ==~~
−
−	Dont judge each day by the harvest you reap but by the seeds that you plant. ~ Robert Lewis StevensonIt has been my experience that life is what you make of it. You can look at it many ways. It can be like a cup of coffee it is all in how you make it. I have decided to look at my life as a garden because your harvest all depends on what seeds you plant.
−
−	~~[[http://goodvillenews.com/5-Easy-Steps-to-Turn-Your-Life-Into-an-Abundant-Garden-5eoXgS.html 5 Easy Steps to Turn Your Life Into an Abundant Garden]]~~
−
−	~~[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]~~
−
−	~~== Why You Should Always Trust Yourself ==~~
−
−	Trust yourself. You know more than you think you do. Benjamin SpockAs time passes by and the more work you will do on discovering and improving yourself, the more you will realize that the ancient Latin quotation: Ne te quaesiveris extra - Do not look outside of yourself for the truth, is true.
−
−	~~[[http://goodvillenews.com/Why-You-Should-Always-Trust-Yourself-TR2gYW.html Why You Should Always Trust Yourself]]~~
−
−	~~[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]~~
−
−	~~== Reuse of Wastewater May Improve Drinking Water Supply ==~~
−
−	With recent advances in technology and design, treating municipal wastewater and reusing it for drinking water, irrigation, industry, and other applications could significantly increase the nations total available water resources, particularly in coastal areas facing water shortages, says a new report from the National Research Council.
−
−	~~[[http://goodvillenews.com/Reuse-of-Wastewater-May-Improve-Drinking-Water-Supply-SD47qe.html Reuse of Wastewater May Improve Drinking Water Supply]]~~
−
−	~~[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]~~

← Older revision		Revision as of 23:22, 16 August 2012
Line 127:		Line 127:

	[[Category:Securing FreeBSD]]		[[Category:Securing FreeBSD]]
		+
		+	== Why Have Good When You Can Have Better? ==
		+
		+	As I look back on my life, I realize that every time I thought I was being rejected from something good, I was actually being re-directed to something better. Steve Maraboli
		+
		+	[[http://goodvillenews.com/Why-Have-Good-When-You-Can-Have-Better-PdMtIo.html Why Have Good When You Can Have Better?]]
		+
		+	[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]
		+
		+	== 7 Essential Books on Optimism ==
		+
		+	Every once in a while, we all get burned out. Sometimes, charred. And while a healthy dose of cynicism and skepticism may help us get by, its in those times that we need nothing more than to embrace lifes promise of positivity with open arms. Here are seven wonderful books that help do just that with an arsenal ranging from the light visceral stimulation of optimistic design to the serious neuroscience findings about our proclivity for the positive.
		+
		+	[[http://goodvillenews.com/7-Essential-Books-on-Optimism-6pgcLt.html 7 Essential Books on Optimism]]
		+
		+	[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]
		+
		+	== 5 Easy Steps to Turn Your Life Into an Abundant Garden ==
		+
		+	Dont judge each day by the harvest you reap but by the seeds that you plant. ~ Robert Lewis StevensonIt has been my experience that life is what you make of it. You can look at it many ways. It can be like a cup of coffee it is all in how you make it. I have decided to look at my life as a garden because your harvest all depends on what seeds you plant.
		+
		+	[[http://goodvillenews.com/5-Easy-Steps-to-Turn-Your-Life-Into-an-Abundant-Garden-5eoXgS.html 5 Easy Steps to Turn Your Life Into an Abundant Garden]]
		+
		+	[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]
		+
		+	== Why You Should Always Trust Yourself ==
		+
		+	Trust yourself. You know more than you think you do. Benjamin SpockAs time passes by and the more work you will do on discovering and improving yourself, the more you will realize that the ancient Latin quotation: Ne te quaesiveris extra - Do not look outside of yourself for the truth, is true.
		+
		+	[[http://goodvillenews.com/Why-You-Should-Always-Trust-Yourself-TR2gYW.html Why You Should Always Trust Yourself]]
		+
		+	[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]
		+
		+	== Reuse of Wastewater May Improve Drinking Water Supply ==
		+
		+	With recent advances in technology and design, treating municipal wastewater and reusing it for drinking water, irrigation, industry, and other applications could significantly increase the nations total available water resources, particularly in coastal areas facing water shortages, says a new report from the National Research Council.
		+
		+	[[http://goodvillenews.com/Reuse-of-Wastewater-May-Improve-Drinking-Water-Supply-SD47qe.html Reuse of Wastewater May Improve Drinking Water Supply]]
		+
		+	[[http://goodvillenews.com/wk.html GoodvilleNews.com - good, positive news, inspirational stories, articles]]

@@ Line 72: / Line 72: @@
   #!/bin/sh
-  pfctl -t ssh-violations -T flush
+  /sbin/pfctl -t ssh-violations -T flush
   for ips in `cat /var/log/auth.log | grep sshd | grep -i "illegal" | awk '{print $10}' | uniq -d` ; do
-         pfctl -t ssh-violations -T add $ips
+         /sbin/pfctl -t ssh-violations -T add $ips
   done
   cat /var/log/auth.log | grep sshd | grep -i "failed" | rev  | cut -d\  -f 4 | rev | sort | uniq -c | \
   ( while read num ips; do
       if [ $num -gt 5 ]; then
-           if ! pfctl -s rules | grep -q $ips ; then
+           if ! /sbin/pfctl -s rules | grep -q $ips ; then
-                  pfctl -t ssh-violations -T add $ips
+                  /sbin/pfctl -t ssh-violations -T add $ips
           fi
       fi

@@ Line 12: / Line 12: @@
 ==Firewall repeated illegal or failed SSH logins attempts==
-To firewall failed login attemps, a simple script that will scan the log file for illegal or failed attempts and firewall repeated IP's will do the trick. It will slow down and stop a brute force dictionary login attack.
+To firewall failed login attempts, a simple script that will scan the log file for illegal or failed attempts and firewall repeated IP's will do the trick. It will slow down and stop a brute force dictionary login attack.
 Using the examples below you can create a file called sshd-fwscan.sh, then use [[cron]] to run the file every ''x'' minutes and it will automatically firewall the IP once it detects 5 or more failed login attempts.

@@ Line 119: / Line 119: @@
 ==External links==
 * [http://danger.rulez.sk/projects/bruteforceblocker/ BruteForceBlocker] is a script, that works along with pf - OpenBSD's firewall.
 * [http://denyhosts.sourceforge.net/ DenyHosts] a similar tool (available in security/denyhosts in ports)

← Older revision		Revision as of 00:58, 18 November 2009
Line 1:		Line 1:
−	<a ~~href="http://wiki~~.~~openg.org/User:Scenehandley">angel loliata</~~a~~> asdfasfds <a href=~~"~~http://www.metacafe.com/channels/profieedprosiev~~"~~>lolita biz</~~a>	+	==Introduction==
		+	We're starting to see a rash of password guessing attacks via [[SSH]] on exposed [[BSD]] servers which are running the SSH [[daemon]]. These login attempts are coming from multiple addresses, which makes some people suspect that they're being carried out by a network of "bots" rather than a single attacker.

	==Limiting SSH login sessions==		==Limiting SSH login sessions==