Juniper ScreenOS / SSG Block A User Agent
Nov 25, 2008
I have a SSG-320M I manage, and would like to know if I can block traffic to our web servers based on the user agent hitting us? I know user agents that keep using more and more IP addresses to crawl us, one already taking up some 30 or 40 addresses under my policies and its a pain to identify these by hand and keep updating the firewall every few days to add new IP addresses for them. Is there somewhere I can add part of the user agent I do not want to ever see again? Right now I do this by having a policy at the top saying "BadBotsGroup" is denied. But I want to deny anyone with a user agent "OneUserAgent" or "SecondUserAgent"
It seems so important and simple, but I do not see anything about being able to do this. Thanks for help and pointers. Right now we have special code at the top of our sites that blocks these bots, but I would much rather do it in one location at the firewall.
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Aug 7, 2008
There's a bot that's taken to trolling my site. I'd like to block it.
1) Is there a relatively straightforward way through cPanel that I can do this?
2) Failing that, via adding some code to a page on my site (I've seen some code when googling on the 'net, but I'm new to this, and don't even know where such code belongs. As far as I can tell, depending on the bot, sometimes severe measures may need to be taken. However, from my limited reading, it seems that appropriate editing of .htaccess might do it.)
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Dec 17, 2008
how can i block this user agent through mod_rewrite
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
and is this agent will affect all the IE 6 users ?
and whats is the difference between the one above and this one :
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; InfoPath.2; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30)?
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Jan 13, 2007
I'm trying to deny from the block of "192.168.1" without much success. Could someone around here divulge the error of my ways?
Here is the exact code I have in my .htaccess file:
Code:
AuthName "Test"
AuthType Basic
<Limit GET POST>
order deny,allow
deny from all
allow from 192.168.1.
</Limit>
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Jan 27, 2014
I have a rewrite for mobile clients :
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} "android|blackberry|iphone|ipad|nokia" [NC]
RewriteRule ^$ https://www.myudomain.com/Mobile [L,R=302]
My mobile site is HTML5 written and old phones doesn't support it. How to exclude f.x. old nokias - like 6220 and rewrite old phones to /Mobile_old?
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Apr 15, 2007
Is there any way to totally block php shell scripts on users accounts, i don't mean like the java shell in cPanel i mean a php shell script like the kind frequently used by hackers...
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May 23, 2009
i have run exim -qff from SSH then i got below error let me know what to do
Code:
root@web [~]# exim -qff
sda7: write failed, user block limit reached.
sda7: write failed, user block limit reached.
sda7: write failed, user block limit reached.
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May 10, 2009
i recently got multiple logs regarding this weird browser user agent,
Browser Agent:
XXX<? echo "w0000t"; ?>XXX
anyone have information regarding this?
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Oct 5, 2009
I need to protect about 80 servers from certain attacks some of them are being victim of. Altogether, these servers use about 200Mbps being almost all of them webservers. The last time, one of them was a victim of a DDoS attack which made all the rest get some packet loss (because this attack was consuming all the bandwidth we had available).
I was looking at Juniper solutions, however I get a bit confused with all the products they have to offer. First, I was looking at IDP series, but they seem a bit pricey and I believe I donīt need all those IDP functions those devices are capable of. NetScreen is also too expensive for me. Iīm looking at a budget of 10.000$ aprox.
I found SRX series and after taking a look at SRX240 and SRX650 specs [url] those firewall numbers seem very nice and perfect for my problem. Would this be a wise choice? This device would act also as the main router for our racks. Please let me know if there are other recommendations that fit the specified budget (10K).
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May 9, 2008
Can anyone give any real world numbers as to what each model of the Juniper-J series router is capable of? How much do these routers cost, and where is the best place to get them from?
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Apr 17, 2008
Does anyone have any experience running Juniper SSG-550 firewalls in a high-traffic hosting environment?
I run network operations for a hosting provider in Australia. We currently have two J4350s running as border routers, and we are looking at putting two Juniper SSG-550s behind the border routers to do stateful firewalling / NAT.
We'll be using active/active NSRP on the SSGs for load balancing and failover.
My concern is that these devices may not be able to handle our traffic load. They have a hard-set limit of 256,000 "concurrent sessions" which may not be enough for us in peak times. Almost all of our traffic is HTTP though, so I would imagine sessions would timeout quite quickly?
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Dec 26, 2007
In one of our racks, we now just have two Procurve (J4900B) switches, and run software firewalls on our CentOS servers. We are now looking towards a hardware firewall to ease managment and reduce load on our servers.
One of our suppliers reccomends the SSG140 from Juniper, and it seems to cover our needs. The SSG320 however seems to have more features, like layer3 routing. Could this device replace our Procurve switches, and act as a firewall/switch?
Anyone familiar with these devices and have some input on what to choose? How does the anti-ddos and bruteforce attack functions work out, do they hold up? Anyone tested the Deep Inpspection Signature module? Is it worth having for a ISP/Webhost?
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Nov 10, 2007
any experience and feedback on Juniper J-series routers?
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Apr 6, 2009
My dedi host, was having all sorts of problems with simply just setting up a box, taking them roughly a week, and I'm still waiting for a resolution.
Anyhow,
Windows validation failed, I contacted them to open up a ticket, They wanted the password to root because I've changed the default password they gave me, so I gave them the password
(1)Should I not be doing this, or do you have to give them the password when they ask.
(2)Can this have been resolved without giving them password to root.
They said it'd be resolved in an hour, I emailed them back and they said they'll email me when it's done. But they've closed off the ticket.
(3)Issue hasn't been resolved, how's anyone going to be working on it if the ticket is closed? Shouldn't that ticket be left open till the issue is resolved?
Wow I'm so green behind the ears with all this stuff.
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Oct 11, 2009
I've been reading and searching on here as much as I can to try to help me in making a decision, unfortunately when I think I know what to do, I read something else and get confused again.
We are in the process of moving networks within our datacenter and will have 2 drops coming into our half-cabinet. We have about 7 servers in there, some for our own use and some for clients. In all cases, we manage the servers and are the only ones with root access (no need for VLANs for the purpose of protecting IPs etc).
We currently have a single drop and use an HP procurve 2524 layer2 switch that has been in there for over 6 years and never had a single hiccup. We also don't push much traffic at all though. Under 5mbps combined.
My question though is this: moving to the new network we will have 2 drops that are set up as HSRP on their end (upstream of me, I don't have to worry about having two switches). In order to use the dual feeds, we will need a Layer3 switch. One feed will be active, the other is not, both are connected to the switch via a VLAN and provide a gateway for VLAN2 to use. I have never used a layer3 switch, though I'm not *too* concerned since I don't expect we'll be doing anything too complex. My understanding is that one VLAN (VLAN1) will be set up with an IP address assigned to each drop and that VLAN1 will create a gateway for VLAN2. The second VLAN (VLAN2) will be all our "inside" client IPs that will then route through VLAN1.
I was briefly checking out the cisco 3750, but I think it's overkill...? I don't want to spend too much money, since I don't think we need any complex setups, at the same time, I don't want to waste money by buying something that won't work efficiently down the road.
My immediate short-list is now an HP procurve 2610, an HP procurve 3500 J9470A (not the YL), and a Cisco 3560 24-TS.
Of course, then someone mentioned Juniper (whom I have zero experience with either) and hence the title to my thread... I'm thoroughly confused. I was looking at the EX3200-24T.
Ok, so if I have to boil this down to some simple requirements/thoughts... here goes:
1. I only need 24 ports for now.
2. I use SNMP currently to monitor usage for clients (and overall)
3. I like HPs and have used them for layer2, I like their lifetime warranty and software availability
4. I don't have direct experience with Cisco at all.
5. Aside from routing from one VLAN (provider side) to another VLAN (my side), I don't think I need any other special features (hence the hp 2610 being ok I think, since it offers "lite layer3")
6. Some people say HP is great for layer2 but not for layer3? Now I dont' know what to think.
7. Currently use about 2mbps and might jump to 3 or 4mbps, but don't have major needs. I'd like for this switch to be able to last me a while though... so maybe 20~40mbps+? (but still not the hundreds of mbps that others here push
8. If possible, I'd LIKE to limit some servers to 1mbps or 2mbps on a per-port basis... but this is not a hard requirement. (I think this takes the 2610 out).
Budget: I like the $500 price tag of the 2610, but can spend the $1500~$2000 for the HP 3500, Cisco 3560, or Juniper. I would just rather not, if the price/features are not justifiable.
Hopefully I've provided enough information for someone to offer their insight? I think a few strategic key points or questions from someone with more experience might be what I need to help me bust through the "too many choices" fog and end up with the best switch for my situation...
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Nov 10, 2007
I am tried of not finding a good documentation on now to configure netscreen-25 firewall.
This is the current setup;
Ethernet Drop -> Netscreen (connected via straight RJ-45)
NetScreen -> Switch (Connected via cross-over cable)
This is the what I want to be able to do...
I am assigned a 76.36.57.32/27 subnet
Netmask 255.255.255.224
Gateway 76.36.57.33
1) Make Netscreen accessible via IP 76.36.57.34 for remote management.
2) I dont want netscreen to assign IPs for my wired devices because I've already set all their IPs and those are the ones I want to use.
Now, I did read the manual [url] and went to Network -> Interfaces -> Ethernet 1 Trust *edit* and in the "IP address" box I typed 76.36.57.34 and netmask "/27".
In the "Manage IP" box, I typed 76.36.57.39/27 according to the manual.
After doing all that, I cant access any of my "wired" devices behind firewall and neither can I access the firewall itself with the IP I assigned.
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Dec 19, 2007
we have this Juniper SSG5 firewall, our very first Juniper and wanted to use it.
While I am able to use it in NAT mode, I have been unsuccessful to use it in route mode.
We have Public IPs from the same segment and I wanted to use it with the firewall but it appears that I can't assign IPs for each port if the IP is from the same segment.
Does it mean that we can't use it other than in NAT mode?
What we want to accomplish is to have one of IPs to act as gateway and filter or route in/out traffic to/from our other IPs.
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May 3, 2009
We are searching a firewall for our small colocation.
We have chosen the Juniper SSG 520/550 or a Cisco ASA 5520 (eventually the 5540).
We want primaly filter ddos attacks on our webservers (bot-network, attacking a domain, port 80) and syn flood attacks (port 80).
Do you have real experience with the Juniper or Cisco devices?
Can we integrate such device in the fellowing network design:
(where to put the firewall ?)
- Uplink 1gbit datacenter -> our HP Procurve gigabit switch
- HP Procurve switch -> Servers
We are using /30 as eth0 "bridged", and /29 /28 /27 "routed" over eth0.
I would prefer a "live analysis" of our traffic. Is that possible?
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Oct 23, 2007
I've been looking at these two Firewalls for a quite some time and I am not sure which one I should go with. Price is not a factor since both are around the same price range.
The firewall is going to be in between my DROP and LAYER3 Switch.
So...FastE -> Firewall -> Layer3
As you can see, I dont want any fancy VLAN stuff or anything like that since my switch can take care of all that. I just want a firewall which is easy to configure and manage and has DDoS protection built-in.
If you have any other hardware based firewalls in the price range of ASA 5505 and Netscreen 5GT then I would want to hear about those as well.
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Oct 28, 2007
I've setup my ssh to login with keys and passphrase. I would like to do away with passphrases by using agent forwarding. Putty uses Pageant to store private keys, bu from all the tutorials I can find, it's a windows based feature (to add private keys). I've also tried to use ssh-add (a different agent), but it has trouble recognizing my private key passphrase (made with putty). I know the private key is working because I'm able to use use ssh without a password, just the phrase.
What's the best way to do this? Is there a putty pageant command line that I don't know about?
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Dec 20, 2014
Plesk from plesk server Migration, I want to do
I get the following error.
Error: No Migration & Transfer Agent found. Data migration cannot be performed.
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Aug 21, 2014
I'd like to upgrade my server from Ubuntu 12.04 to Ubuntu 14.04. The idea is to migrate my actual server (S1) to another one (S2). Then, format and install ubuntu 14.04 with Plesk on S1, and finally migrate the data from S2 to S1. Is it a good solution? Is it possible to do this using only one server? I don't know if I can do it making a backup, install Ubuntu 14.04 and then, restore the data into the server.
However, I have a problem with the migration agent. When I go the migration page, the migration agent tries to update itself and it keep at 0% forever (I attach an screenshot).
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Jan 10, 2015
I got error, can`t access to panel:
ERROR: Service_Agent_Exception
Unable to read apache features from the service node: [Sat Jan 10 12:25:03.013856 2015] [so:warn] [pid 32541] AH01574: module actions_module is already loaded, skipping
[Sat Jan 10 12:25:03.014058 2015] [so:warn] [pid 32541] AH01574: module auth_digest_module is already loaded, skipping
[Sat Jan 10 12:25:03.014694 2015] [so:warn] [pid 32541] AH01574: module authz_user_module is already loaded, skipping
[Code] ....
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Aug 23, 2009
Looking to upgrade to a new switch and have the following in mind. Budget is around 1-2k. We're pushing 500mbps upstream so i want to make sure that the unit can handle that well. Lots of full speed traffic between servers too.
No fancy features required, and the only need is port trunking, which all of these have.
I look at the specs for latency and pps, but I'm not sure if you can trust these figures.
Anyone have experience with the following.
HP Procurve 2910al-24
$1430
latency <2.9us
131 Mpps
176 Gbps
Bonus: 10Gb capability with expansion module
Extreme Networks Summit x350
$1300
latency < ?
65 Mpps
88 Gbps
Bonus: 10Gb capability with expansion module
Juniper Juniper EX3200-24T
$1800
latency < ?
65 Mpps
88Gbps
Bonus: 10Gb capability with expansion module
Bonus: 8 ports are POE
Netgear GS724AT
$350
latency <3us
??? Mpps
48Gbps
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Nov 5, 2007
to build a new 10GE network and have received offers from Juniper and Cisco distributors.
Juniper seems to be a bit more expensive. It was our first choice at the beginning untill we saw many big ISP's using cisco 6509 with SUP720-3BXL for routing.
Is there anyone with experience on both products? How about support for both of these?
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May 7, 2007
I thought I knew enough about my .htaccess stuff to do this, but I can't seem to work it out. What I want to do is if a user visits domain.com/folder, we check to see if the folder exists. If so, show as normal (IE domain.com/support)
If a user visits domain.com/dynamicusername (dynamicusername is not a physical folder), redirect to dynamicusername.domain.com
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Jan 3, 2014
when I find the subscription from the admin side of PPA, if I select "Login as user" I've noticed that it is different from actually logging in as the user - for example - "add domain alias" is missing when I login as a customer - but not as an admin... I need my customers to add their own aliases and manage them - how do I add that feature to the client login side?
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Jul 8, 2009
I am curious, what is the best way to ban certain IP from accessing server? I have software firewall (APF) and there is, of course, /etc/hosts.deny.
Which is the most efficient? I've read that software firewall becomes unstable after so many entries. Does the same apply to /etc/hosts.deny file?
Or is there a better way altogether?
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Jun 8, 2009
some Chinese forums hotlinking images from my site and I even delete those images they keep sending me huge amount of http requests to my hosting server and eating 800mb of memory and upto 1GB cause server crash
I tried to block incoming referrer traffic from those sites using htaccess but it didn't work , I still see their http request on my server logs and memory keep goes high , am not sure my code is the right
how can I block these http request from these domains , what is the right htaccess code , I use DirectAdmin panel by the way
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