ACE balance cookie + https
Hello Everyone,
i have a ACE 4400 Appliance, for balance some applications on the network.
i have one application(citrix), the connection to this site is https(443).
I had a balance of cookie, plus this only worked if I left only one server in "inservice" on Serverfarm if I add the second, the application showed me a scree saying "your web interface session is in an inconsistent state."
Since the above problems, I set the cookie for connection to work with "persistence rebalance," but the problem continued.
After I passed the Serverfarm to be balanced by source IP, the troubles are over, I kept the persistence rebalance.
Now comes the question, why not work with cookie? https does not work if the balancing change something in the package, such as information inside a cookie?
Old configuration:
sticky http-cookie NFUSE-COOKIE STICKY-HIAE-NFUSE-COOKIE
cookie insert browser-expire
replicate sticky
serverfarm SF-HIAE-NFUSE
Current Configuration:
sticky ip-netmask 255.255.255.255 address source STICKY-HIAE-TESTE-NFUSE
replicate sticky
serverfarm SF-HIAE-NFUSE
Class/Policy and Parameter map.
class-map match-all VS-HIAE-NFUSE
2 match virtual-address 192.168.16.30 tcp any
policy-map type loadbalance first-match VS-HIAE-NFUSE-l7slb
class class-default
sticky-serverfarm STICKY-HIAE-TESTE-NFUSE
class VS-HIAE-NFUSE
loadbalance vip inservice
loadbalance policy VS-HIAE-NFUSE-l7slb
loadbalance vip icmp-reply active primary-inservice
appl-parameter http advanced-options HTTP-OPTS
parameter-map type http HTTP-OPTS
persistence-rebalance
Tks a lot.
Rafael Mendes
Realized the configuration as specified in the link.
Apparently, everything ok.
However, I can not access the page using internet explorer. I tested with firefox, safari, opera, everything works with internet explorer not.
Configuration follows below, is something wrong?
Thanks.
serverfarm host SF-HIAE-NFUSE
description Servidores nfuse.einstein.br
rserver WPVAP06
inservice
rserver WPVAP07
inservice
parameter-map type generic sslidparam
set max-parse-length 70
sticky layer4-payload STICK-L4-NFUSE-SSL
serverfarm SF-HIAE-TESTESSLTERM
response sticky
layer4-payload offset 43 length 32 begin-pattern "\x20"
class-map match-all VS-L4-NFUSE-SSL-TERMINATOR
2 match virtual-address 192.168.16.254 tcp eq https
policy-map type loadbalance generic first-match VS-HIAE-TESTESSLTERM
class class-default
sticky-serverfarm STICK-L4-NFUSE-SSL
policy-map multi-match int10
class VS-L4-NFUSE-SSL-TERMINATOR
loadbalance vip inservice
loadbalance policy VS-HIAE-TESTESSLTERM
loadbalance vip icmp-reply active primary-inservice
appl-parameter generic advanced-options sslidparam
Similar Messages
-
ACE load-balancing-Cookie problem
In our other load-balancing environments the load-balancer-cookie contains the encrypted (real) servername or ip-address.
We think it's the same on the cisco, for that reason it's in theory not possible, that there are two 'green'-cookies with different values in the same request.
There are only two possibilities how this could happen:
a) The healthmonitor (http_probe) fails, the loadbalancer 'thinks' that the realserver is down and redistributes the traffic.
But in that case we would expect, that the old cookie will be overwritten by the new one and not simply added to the http-header.
b) The predictor in the serverfarm chooses a new realserver within the same request.
If that is really the cause of that problem this would be bug in the cisco ace.
What we found out, is that the loadbalancer performs a 'Set-Cookie'-Operation an every request even if the client submits the cookie correctly.
For example:
GET /ips-opdata/scripts/jquery.js HTTP/1.1
Host: www.xxxxx.com
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.15) Gecko/20110303 Ubuntu/10.04 (lucid) Firefox/3.6.15
Accept: */*
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 115
Connection: keep-alive
Referer: http://www.xxxxx.com/
Cookie: green=R339366665; JSESSIONID=28D91FC6FD62A3921354BB36826294C4
HTTP/1.1 200 OK
Set-Cookie: green=R339366665; path=/; expires=Tue, 29-Mar-2011 06:33:00 GMT
Server: Apache-Coyote/1.1
X-Powered-By: Servlet 2.4; JBoss-4.2.2.GA (build: SVNTag=JBoss_4_2_2_GA date=200710221139)/Tomcat-5.5
ETag: W/"72181-1298537508000"
Last-Modified: Thu, 24 Feb 2011 08:51:48 GMT
Content-Type: text/javascript
Content-Length: 72181
Date: Mon, 28 Mar 2011 06:15:19 GMT
As you can see the cookies: green=R339366665 is transmitted from the client, but the loadbalancer does a Set-Cookie Operation of the same cookie once again. This is an unexpected behaviour.
We hope that this helps you to figure out the reason of the problem.The cookie is sent by the ACE on each response to refresh the timeout value on the client. The value of the cookie doesn't change. This is the expected behaviour and shouldn't break anything in the application / browser.
For browser-based applications, don't forget to add the "browser-expire" parameter to your cookie-based stickyness config. -
HTTP POST with advance balance cookies
Hello
I am trying to keep a session sticky for 20 mins based on cookies. The problem is the application is using HTTP POSTs and the balance method only looks into the HTTP GET. How can I get the CSS to look into the HTTP POST?
Any examples would be great.
Thanks.
DonaghHi Gilles
Thanks for your reply. I have obviously been misinformed about the POST and the GET. That is good but now I don't have an answer to my problem!! I am balancing on a cookie called ASP.NET_SessionId=
Here is my config
content Toughbook_PDAs
vip address 10.40.21.28
add service w2k-eolasprd1
add service w2k-eolasprd2
protocol tcp
port 80
string prefix "ASP.NET_SessionId="
sticky-inact-timeout 20
advanced-balance cookies
active
I have attached a trace and I am looking for
ASP.NET_SessionId=1w0cql550wou04albf4jrjfoy45
Hopefully my config is incorrect.
Thank You
Donagh -
Hello,
I have a following configuration:
sticky http-cookie STICKY_TMP STICKY_TMP
cookie insert ...
Cookies are sent and stickiness works. Everything is ok... Almost :-)
Now I have a question regarding value of cookies created by ACE.
Currently cookies have values that look like this "R4224709512"
Is it possible to change this value so it reflects the target node that processes requests for this sticky session. This cookie could contain i.e. ip address of real server.
Arrowpoint cookie on CSS1150 worked this way...
Another question. How do I identify this cookie value with sticky-entries in "show sticky database static" output?
This command doesn't show anything like R4224709512, but only numbers like 18293255029648678255
best regards
KubaI am using ACE with version A3(2.1).
The “sticky-entry” in "show sticky data static"is a hash of the cookie-value set by ACE for the real server. so you need to use "show sticky database http-cookie " to determine which server are serving the client.
ACE-1/routed(config-pmap-lb-c)# do show sticky database http-cookie
sticky group : web-sticky
type : HTTP-COOKIE
timeout : 5 timeout-activeconns : FALSE
sticky-entry rserver-instance time-to-expire flags
---------------------+----------------------+--------------+-------+
16820511103801384579 lnx1:0 0 -
sticky group : web-sticky
type : HTTP-COOKIE
timeout : 5 timeout-activeconns : FALSE
sticky-entry rserver-instance time-to-expire flags
---------------------+----------------------+--------------+-------+
3347854103021350619 lnx2:0 0 -
..sometimes they'd only show up w/ the static instead of the cookies option for some reason.
found some explanation about this:
http://docwiki.cisco.com/wiki/Session_Persistence_Using_Cookie_Learning_on_the_Cisco_Application_Control_Engine_Configuration_Example
There is a difference between inserting an ACE-generated cookie or using one learned by the ACE. The cookie-insert feature creates a static cookie.
To look at static cookies you need to use the command:
show sticky database static
if you try static cookie (cookie inserted by ACE), the value is placed in the static sticky table at the time of configuration...
so no need to send traffic, once the static sticky config is in place, you should see an entry with 'show sticky database static'.
Do not try to filter the table with some other parameters...they do not work until A2(1.4)
There are 2 database:
One for static entries and one for dynamic entries.
Every show command that does not include the static keyword will look into the dynamic database.
So, you won't see anything by using those commands.
You could perform some test to identify which cookie is sent to which server.
The cookie value is static, so the number of value is limited to the number of servers.
There is a dynamic cookie learning feature available in ACE.
Kinly tell me if you want to discuus about that.
Kindly rate if possible.
Kind regards,
Sachin garg -
What is behavior for cookie-http-only?
I noticed cookie-http-only property available in 9.2 and also 10.3 but what exactly does enabling this do?
The documentation isn't very clear.
"Specifies whether HttpOnly cookies are enabled. When this element is set to true, all session cookies would be unavailable to the browser scripts. The default value is true. Therefore, HttpOnly cookies are enabled by default."
Does that mean it will make my jsessionid as httponly? In 9.2, enabling this property didn't do this.
Does it just mean it will honor httponly settings? But that would be on the browser end.
Does it mean it will make my other session cookies as httponly and not jsession id?
Please clarifySmart Mailboxes don't do anything to messages except list them. The messages must reside somewhere else. If the message is deleted from wherever it lives, or if it no longer satisfies the search criteria that define the Smart Mailbox, it will no longer appear. For example, suppose the Smart Mailbox specifies "unread" messages. Once the message has been read, it will not appear in that Smart Mailbox the next time it is opened.
-
I leverage "cookie insert broswer-expire" to use ACE generated static cookie.
Now I add some additional "static cookie-value "xxx" rserver xxx", in order to make cookie more "meanful" and would be easier for troubleshooting.
But how can I activate the new static cookie, since the previous static cookit never expires? thanks.If I understand you question correctly then
you would like to configure cookie string value when using the COOKIE insert feature.
This was possible in CSS using string command.
With ACE currently you cannot configure a cookie-value for the cookie that is inserted by ACE (-- using cookie-insert feature). ACE
always automatically add a cookie value for the cookie it inserts.
This cookie value is similar to R2482639152
If you use
static cookie-value "xxx" rserver yyy"
The static cookie option will only work if a client happens to come in with
the cookie=xxx. Then that connection will be stuck to rserver yyy.
Syed -
ACE with sticky http-cookies across two server farms issue
Hi,
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-qformat:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman","serif";}
We need the same sticky http cookie to applied to two server farms (which are actually the same servers but listening on different ports in each farm) to persist sessions to the same real backend server.
e.g.
Farm1 (front end HTTP service) - StickyGroup1
rserver1 - 192.168.0.1:80
rserver2 - 192.168.0.2:80
rserver3 - 192.168.0.3:80
Farm2 (SSL front end authentication service) - StickyGroup2
rserver1 - 192.168.0.1:443
rserver2 - 192.168.0.2:443
rserver3 - 192.168.0.3:443
We have setup two Sticky Groups (one for each of the farms above) both using the same cookie name e.g. cookieXYZ
Our service is behind a single virtual server configured as follows (example URL and addresses):
Virtual Server Configuration
Virtual server name: www.somedomain.com
Virtual IP: 2.2.2.2
TCP/443 (https)
SSL Termination - Proxy service name: www.somedomain.com (all keys and certs loaded and correct)
L7 Load Balancing - **inline** rule match HTTP URL:(/AuthenticateMe/).* Action : Sticky, Group: StickyGroup2, SSL Initiation enabled (www.somedomain.com)
Default L7 Load Balancing action : Sticky, Group: StickyGroup1
So normally we would expect users to first hit www.somedomain.com first and therefore Farm1, get cookieXYZ from the ACE (cookie insert is only enabled on StickyGroup1) and then be redirected to www.somedomain.com/AuthenticateMe which matches the inline URL L7 rule which directs the request at Farm2 - at this point we expected the ACE to use cookieXYZ to persist the user to the same real server hit in Farm1 but instead the stickiness doesn't seem to work.
We suspect that the ACE uses IP:port as the unique value in the Cookie ID and therefore the ACE fails to match the same real host in a different farm because we are using a mix of port numbers across farms. Is this correct? Is there another way of accomplishing what we are after with a different configuration but still the same setup with single VIP and multiple services on the backend servers?
Any suggestions or solutions appreciated.
Thanks
PaulThe issue is related to the fact that it's not about persistence because there are only "new" services in the backend in SSL, you want to keep the IP address.
With a little bit of dev, the only way to acheive this is to redirect the user when he has been sent to http and adding a "tag" (cookie / token in the URL), then on the SSL virtual server, when performing SSL offload matching this tag to send to user to the right server. But it will be a 1-to-1 mapping. -
ACE - Balance HTTP and sticky only SSL/TLS
Hi there,
I have a situation that I am trying to solve. We have lot of services trough ACE, but now I have to modify one of them, PROXY servers.
I have six (6) servers working with Sticky, but with a MASK 255.255.255.0, which produce an unbalanced situation some times, and that affect some servers on depending of how many users connected to that server. We have between 40K and 50K conns in that serverfarm, but in Sticky terms we have arround 700 /24 subnets.
I want to modify the configuration, specificaly the MASK to 255.255.255.255, which is going to increase a lot Sticky resources. But thinking in optimize Sticky resources, I want to know if there is a way to select only e-commerce, Home Banking or other kind of SSL/TSL traffic (always using port 80 trough proxy servers), so I could use Sticky only for connections that need it, and leave other HTTP traffic without this feature.
I´m sorry, may be I'm doing a silly question, but don´t have the experience to make this configuration, and I will apreciate your help.
Here is the actual configuration:
probe tcp HTTP
description Keepalive web servers
interval 20
passdetect interval 30
rserver host Server1
ip address 10.1.1.1
inservice
rserver host Server2
ip address 10.1.1.2
inservice
rserver host Server3
ip address 10.1.1.3
inservice
rserver host Server4
ip address 10.1.1.4
inservice
rserver host Server5
ip address 10.1.1.5
inservice
rserver host Server6
ip address 10.1.1.6
inservice
serverfarm host PRX
failaction purge
predictor leastconns
probe HTTP
rserver Server1
inservice
rserver Server2
inservice
rserver Server3
inservice
rserver Server4
inservice
rserver Server5
inservice
rserver Server6
inservice
sticky ip-netmask 255.255.255.0 address source sticky-PRX
timeout 60
serverfarm PRX
class-map match-any VIP-PRX
2 match virtual-address 10.10.10.101 tcp eq www
policy-map type loadbalance first-match POLICY-L7-PRX
class class-default
sticky-serverfarm sticky-PRX
policy-map multi-match PRX-Balance
class VIP-PRX
loadbalance vip inservice
loadbalance policy POLICY-L7-PRX
loadbalance vip icmp-reply
interface vlan 100
ip address 10.10.10.11 255.255.255.0
alias 10.10.10.10 255.255.255.0
peer ip address 10.10.10.12 255.255.255.0
no normalization
access-group output SOLO-SLB
service-policy input PRX-Balance
Thanks
AlexisYou might want to check out this new product called ITD.
Simple and faster solution:
ITD provides :
ASIC based multi-terabit/s L3/L4 load-balancing at line-rate
No service module or external L3/L4 load-balancer needed. Every N7k port can be used as load-balancer.
Redirect line-rate traffic to any devices, for example web cache engines, Web Accelerator Engines (WAE), video-caches, etc.
Capability to create clusters of devices, for example, Firewalls, Intrusion Prevention System (IPS), or Web Application Firewall (WAF), Hadoop cluster
IP-stickiness
Resilient (like resilient ECMP)
VIP based L4 load-balancing
NAT (available for EFT/PoC). Allows non-DSR deployments.
Weighted load-balancing
Load-balances to large number of devices/servers
ACL along with redirection and load balancing simultaneously.
Bi-directional flow-coherency. Traffic from A-->B and B-->A goes to same node.
Order of magnitude OPEX savings : reduction in configuration, and ease of deployment
Order of magnitude CAPEX savings : Wiring, Power, Rackspace and Cost savings
The servers/appliances don’t have to be directly connected to N7k
Monitoring the health of servers/appliances.
N + M redundancy.
Automatic failure handling of servers/appliances.
VRF support, vPC support, VDC support
Supported on both Nexus 7000 and Nexus 7700 series.
Supports both IPv4 and IPv6
N5k / N6k support : coming soon
Blog
At a glance
ITD config guide
Email Query or feedback:[email protected] -
Load balancing FTP/HTTP on same VIP
Hi,
Please could someone confirm if it is possible to load balance FTP and HTTP on same VIP? Would something like this work in a one-armed design?
class-map match-any WCVS
2 match virtual-address 20.0.0.1 tcp eq www
4 match virtual-address 20.0.0.1 tcp eq ftp
policy-map multi-match int3
class WCVS
loadbalance vip inservice
loadbalance policy VS-l7slb
inspect ftp
nat dynamic 5 vlan 20
int vl20
service-policy input int3Hello,
I assume you want to ultimately use cookie sticky, since it is in your config, but not yet used. The '80' next to the rservers within the serverfarm will keep FTP from working because that will force the ACE to always use a destination port of 80 to the rservers, which is good for HTTP, but not so good for FTP. Below is your config with some modifications. I've created a new serverfarm for FTP, created a new probe for that farm, included HTTP cookie-sticky, and created a new L7 policy-map. There is one line that I would like you to remove and see if it works. If it does not, then add this line and see if it works.
Let me know how it goes...
logging enable
logging buffered 6
access-list ALL line 8 extended permit ip any any
access-list ALL line 16 extended permit icmp any any
probe http Probe_HTTP
interval 5
passdetect interval 60
expect status 200 200
open 2
receive 2
probe tcp Probe_FTP
port 21
interval 5
passdetect interval 60
open 2
receive 2
rserver host Server1
ip address 10.10.10.10
conn-limit max 4000000 min 4000000
inservice
rserver host Server2
ip address 10.10.10.11
conn-limit max 4000000 min 4000000
inservice
serverfarm host FARM-HTTP
probe Probe_HTTP
rserver Server1 80
conn-limit max 4000000 min 4000000
inservice
rserver Server2 80
conn-limit max 4000000 min 4000000
inservice
serverfarm host FARM-FTP
probe Probe_FTP
rserver Server1
conn-limit max 4000000 min 4000000
inservice
rserver Server2
conn-limit max 4000000 min 4000000
inservice
sticky http-cookie XXX_tempCookie XXX_tempCookie
cookie insert
serverfarm FARM-HTTP
class-map type management match-any Management
201 match protocol http any
202 match protocol https any
203 match protocol icmp any
204 match protocol kalap-udp any
205 match protocol ssh any
206 match protocol telnet any
207 match protocol xml-https any
class-map match-any XXX-WCVS-WWW
2 match virtual-address 10.10.10.100 tcp eq www
class-map match-any XXX-WCVS-FTP
2 match virtual-address 10.10.10.100 tcp eq ftp
3 match virtual-address 10.10.10.100 tcp range 1023 65535 <-- try first without this, then with this
class-map match-any NAT-VIP
2 match destination-address 10.10.10.100 255.255.255.255
policy-map type management first-match Management
class Management
permit
policy-map type loadbalance first-match XXX_VS-l7slb-WWW
class class-default
sticky-serverfarm XXX_tempCookie
policy-map type loadbalance first-match XXX_VS-l7slb-FTP
class class-default
Serverfarm FARM-FTP
policy-map multi-match int3
class XXX-WCVS-WWW
loadbalance vip inservice
loadbalance policy XXX_VS-l7slb-WWW
class XXX-WCVS-FTP
loadbalance vip inservice
loadbalance policy XXX_VS-l7slb-FTP
inspect ftp
class NAT-VIP
nat dynamic 5 vlan 12
interface vlan 12
ip address 10.10.10.1 255.255.255.0
alias 10.10.10.3 255.255.255.0
peer ip address 10.10.10.2 255.255.255.0
access-group input ALL
nat-pool 5 10.10.10.100 10.10.10.100 netmask 255.255.255.0 pat
service-policy input Management
service-policy input int3
no shutdown
ip route 0.0.0.0 0.0.0.0 10.10.10.254 -
Advance Balance and Https pages
Hello,
I have setup load blancing on our web server, using a content rule and services, with Protocol tcp and any port.
I find that it will allow Https traffic through when the Advance Balance option is not enabled but i get a "server or DNS error" when i have A.B enabled.
My switch is the former Arrowpoint CS-100 software ver 3.02.
Help!!
Pearlthe type of "Advanced Balance" option selected is important. Note that the HTTPS traffic is encrypted so we can NOT do any advanced balance that needs to look at the payload (it's encrypted so the CSS can NOT see it). The "advanced-balance sticky-srcip" would work.
Cookies can't be used because they are encrypted,
SSL is not useful as IE will change the SSL session ID,
URL can't be used because it's encrypted. -
ACE VIP OK HTTP, NOK other TCP port
Hi,
we are having issues in configuring load balancing for a TCP port. For HTTP it's working without issues and we have the ACE also balancing for other TCP ports.
Here goes the relevant config:
probe http PROBE-HTTP
interval 5
passdetect interval 2
passdetect count 1
request method get url /idc/
expect status 200 200
probe tcp PROBE-TCP
port 4444
interval 5
passdetect interval 10
rserver host PRD1
ip address 10.10.10.1
inservice
rserver host PRD2
ip address 10.10.10.2
inservice
serverfarm host SF-HTTP
probe PROBE-HTTP
rserver PRD1 80
inservice
rserver PRD2 80
inservice
serverfarm host SF-TCP
probe PROBE-TCP
rserver PRD1 4444
inservice
rserver PRD2 4444
inservice
sticky ip-netmask 255.255.255.255 address source SC-IP-PRD-HTTP
timeout 10
serverfarm SF-HTTP
class-map match-all NAT-VIP-HTTP
2 match virtual-address 10.10.35.1 any
class-map match-all NAT-VIP-TCP
2 match virtual-address 10.10.35.1 tcp eq 4444
policy-map type loadbalance first-match LB-VIP-HTTP
class class-default
sticky-serverfarm SC-IP-PRD-HTTP
insert-http x-forward header-value "%is"
policy-map type loadbalance first-match LB-NAT-VIP-TCP
class class-default
serverfarm SF-TCP
policy-map multi-match POLICY-RSERVER-VIP
class NAT-VIP-TCP
loadbalance vip inservice
loadbalance policy LB-NAT-VIP-TCP
loadbalance vip icmp-reply active
nat dynamic 1 vlan 200
class NAT-VIP-HTTP
loadbalance vip inservice
loadbalance policy LB-VIP-HTTP
loadbalance vip icmp-reply active
nat dynamic 1 vlan 200
interface vlan 200
description SERVER-SIDE
ip address 10.10.14.2 255.255.255.0
alias 10.10.14.1 255.255.255.0
peer ip address 10.10.14.3 255.255.255.0
access-group input EVERYONE
nat-pool 1 10.10.4.6 10.10.4.6 netmask 255.255.255.255 pat
service-policy input AllowICMP
service-policy input POLICY-RSERVER-VIP
no shutdown
The probe are OK, but nothing seems to get to the VIP:
ACE/CTX# show probe PROBE-TCP
probe : PROBE-TCP
type : TCP
state : ACTIVE
port : 4444 address : 0.0.0.0 addr type : -
interval : 5 pass intvl : 10 pass count : 3
fail count: 3 recv timeout: 10
--------------------- probe results --------------------
probe association probed-address probes failed passed health
------------------- ---------------+----------+----------+----------+-------
serverfarm : SF-TCP
real : PRD1[4444]
10.10.10.1 8853 1 8852 SUCCESS
real : PRD2[4444]
10.10.10.2 8853 1 8852 SUCCESS
ACE/CTX# show serverfarm SF-TCP detail
serverfarm : SF-TCP, type: HOST
total rservers : 2
active rservers: 2
description : -
state : ACTIVE
predictor : ROUNDROBIN
failaction : -
back-inservice : 0
partial-threshold : 0
num times failover : 0
num times back inservice : 1
total conn-dropcount : 0
Probe(s) :
PROBE-TCP, type = TCP
----------connections-----------
real weight state current total failures
---+---------------------+------+------------+----------+----------+---------
rserver: PRD1
10.10.10.1:4444 8 OPERATIONAL 0 0 0
max-conns : - , out-of-rotation count : -
min-conns : -
conn-rate-limit : - , out-of-rotation count : -
bandwidth-rate-limit : - , out-of-rotation count : -
retcode out-of-rotation count : -
load value : 0
rserver: PRD2
10.10.10.2:4444 8 OPERATIONAL 0 0 0
max-conns : - , out-of-rotation count : -
min-conns : -
conn-rate-limit : - , out-of-rotation count : -
bandwidth-rate-limit : - , out-of-rotation count : -
retcode out-of-rotation count : -
load value : 0
ACE/CTX# show service-policy POLICY-RSERVER-VIP
Status : ACTIVE
Interface: vlan 1 200
service-policy: POLICY-RSERVER-VIP
class: NAT-VIP-TCP
nat:
nat dynamic 1 vlan 200
curr conns : 0 , hit count : 0
dropped conns : 0
client pkt count : 0 , client byte count: 0
server pkt count : 0 , server byte count: 0
conn-rate-limit : 0 , drop-count : 0
bandwidth-rate-limit : 0 , drop-count : 0
loadbalance:
L7 loadbalance policy: LB-NAT-VIP-TCP
VIP ICMP Reply : ENABLED-WHEN-ACTIVE
VIP State: INSERVICE
curr conns : 0 , hit count : 0
dropped conns : 0
client pkt count : 0 , client byte count: 0
server pkt count : 0 , server byte count: 0
conn-rate-limit : 0 , drop-count : 0
bandwidth-rate-limit : 0 , drop-count : 0
compression:
bytes_in : 0
bytes_out : 0
I see a lot of this messages in the logging of the ACE:
show logging | i 4444
22:02:52 : %ACE-6-302023: Teardown TCP connection 0x18b6 for vlan200:10.10.14.2/26768 to vlan200:10.10.10.2/4444 duration 0:00:00 bytes 1051 TCP FINs
22:02:55 : %ACE-6-302022: Built TCP connection 0x14dc for vlan200:10.10.14.2/30318 (10.10.10.1/30318) to vlan200:10.10.10.1/4444 (10.10.14.2/4444)
22:02:55 : %ACE-6-302023: Teardown TCP connection 0x14dc for vlan200:10.10.14.2/30318 to vlan200:10.10.10.1/4444 duration 0:00:00 bytes 1103 TCP FINs
22:02:57 : %ACE-6-302022: Built TCP connection 0xc6c for vlan200:10.10.14.2/26784 (10.10.10.2/26784) to vlan200:10.10.10.2/4444 (10.10.14.2/4444)
22:02:57 : %ACE-6-302023: Teardown TCP connection 0xc6c for vlan200:10.10.14.2/26784 to vlan200:10.10.10.2/4444 duration 0:00:00 bytes 1103 TCP FINs
22:03:02 : %ACE-6-302022: Built TCP connection 0x151a for vlan200:10.10.14.2/26800 (10.10.10.2/26800) to vlan200:10.10.10.2/4444 (10.10.14.2/4444)
show logging | i 4444
22:02:52 : %ACE-6-302023: Teardown TCP connection 0x18b6 for vlan200:10.10.14.2/26768 to vlan200:10.10.10.2/4444 duration 0:00:00 bytes 1051 TCP FINs
22:02:55 : %ACE-6-302022: Built TCP connection 0x14dc for vlan200:10.10.14.2/30318 (10.10.10.1/30318) to vlan200:10.10.10.1/4444 (10.10.14.2/4444)
22:02:55 : %ACE-6-302023: Teardown TCP connection 0x14dc for vlan200:10.10.14.2/30318 to vlan200:10.10.10.1/4444 duration 0:00:00 bytes 1103 TCP FINs
22:02:57 : %ACE-6-302022: Built TCP connection 0xc6c for vlan200:10.10.14.2/26784 (10.10.10.2/26784) to vlan200:10.10.10.2/4444 (10.10.14.2/4444)
22:02:57 : %ACE-6-302023: Teardown TCP connection 0xc6c for vlan200:10.10.14.2/26784 to vlan200:10.10.10.2/4444 duration 0:00:00 bytes 1103 TCP FINs
22:03:02 : %ACE-6-302022: Built TCP connection 0x151a for vlan200:10.10.14.2/26800 (10.10.10.2/26800) to vlan200:10.10.10.2/4444 (10.10.14.2/4444)
The client request it's going trough an ASA, in the ASA side I see that the TCP connection it' half-open with SAaB flags. It seems that the VIP never replies with SYN+ACK to the ASA...
Thank you.
Best regardsHi Norberto,
The log messages you are getting are most probably the probe connections and not a failure, looking to them you will see your ACE is establishing TCP connection on 4444 then it will teardown the connection with FIN which is expected since you are using TCP keepalives.
I would recommend to go back and define the problem exactly, what are you exteriancing when you try to telnet on port 4444 toward the VIP from the client?
Run sniffing software on the client, the server and enable capture on ACE and ASA will give you exact idea what you are experiencing.
Note: The ASA and the ACE has great capture feature which will show you exactly the packet flows.
Note: Since you are applying NAT on the client requests, you should see the NATed IP address on the server capture.
Note: With L4 load balancing the ACE is not spoofing the clients' request, it just forward the SYN, SYN+ACK and ACK between the server and the client.
Let me know if you have any other questions.
Best regards,
Ahmad -
Arrowpoint cookie HTTP Only flag set.
Hi All,
I have a site running an application on which we have identified a vulnerability we wish to close. The CSS11501 is using the advance balance arrowpoint cookie method, however tests are showing that the HTTP only parameter is not set. I am unable to find a way of doing this at present. Does anyone know how to acheive this?
Until I can do so there is a remote possibilty I am leaving my application open to cross site scripting attacks.
Microsoft use the HTTPOnly cookie option which sets a HTTPOnly flag. he following url has some information for review.
Thanks in advance for your help.
Alfie...Alfie,
your security test tool assume the CSS is a webserver and therefore complains when seeing some missing *flag*.
However, you won't be able to attack the CSS with whatever method that works against a webserver.
We have our own onboard DOS feature.
So, there is no option to use this microsoft HTTPOnly flag because there is no need for it.
Make sure the servers behind the CSS are protected and have your HTTPOnly flag.
Gilles. -
ACE Module Cookie Parsing causes Reset Connection
I am trying to upgrade my ACE Modules from A2(1.3) to A2(3.2) . Unfortunately, the cookie parsing breaks when there are illegal characters and causes a connection reset (RST) when there is an invalid cookie, but only on code later than A2(1.3).
The cookie in question is being passed by a third party so making them change the cookie is not necessarily do-able. The cookie has the following value:
Cookie: CurrentUser={"UserKey":{"Key":"anonymous"},"LastUpdated":"10/13/2010 1:35:52 PM"}
We are using the following parameter map:
parameter-map type http CASE_PARAM
case-insensitive
persistence-rebalance
set header-maxparse-length 20480
length-exceed continue
On the older code, the request is passed on to the server.
Is there a setting similar to "length-exceed continue" that I can give the ACE to tell it to ignore cookies it cannot parse?HTTP inspection is not enabled.
Did you mean adding a class-default to the policy-map?
Adding it to the policy-map does make it match the class-default. Unfortunately, cookie parse errors result in the inability to parse both the cookie and the host header as well. It seems that rather than just failing to parse the cookie and being unable to do sticky matching - it completely fails the entire header parsing.
Here's our setup:
rserver host test1
ip address 192.168.1.101
inservice
rserver host test2
ip address 192.168.1.102
inservice
rserver host test3
ip address 192.168.1.103
inservice
rserver host test4
ip address 192.168.1.104
inservice
serverfarm host auto
probe HTTP-diagnostic
rserver test1
inservice
rserver test2
inservice
serverfarm host news
probe HTTP-diagnostic
rserver test3
inservice
rserver test4
inservice
sticky http-cookie autoCookie auto-cookie
cookie insert browser-expire
replicate sticky
serverfarm auto
sticky http-cookie newsCookie news-cookie
cookie insert browser-expire
replicate sticky
serverfarm news
class-map type http loadbalance match-any auto
2 match http header Host header-value "www.auto.local"
3 match http header Host header-value "auto.local"
class-map type http loadbalance match-any news
2 match http header Host header-value "www.news.local"
3 match http header Host header-value "news.local"
class-map match-all prod_VIP
2 match virtual-address XXX.XXX.XXX.XXX tcp eq www
policy-map type loadbalance first-match prod_POLICY
class auto
sticky-serverfarm auto-cookie
class news
sticky-serverfarm news-cookie
class class-default
sticky-serverfarm auto-cookie
policy-map multi-match aggregate-slb-apps
class prod_VIP
loadbalance vip inservice
loadbalance policy prod_POLICY
loadbalance vip icmp-reply active
loadbalance vip advertise
appl-parameter http advanced-options CASE_PARAM -
I just implemented ACE 4710, A3(2.4) in our network. It is doing loadbalancing with ssl termination. I configured stickiness using server cookies. My client is telling me cookie is sent in clear text on the Inernet. Is there a way on ACE to encrypt it?
your help is greately appreciated.This is just not possible.
The cookie is part of the http header and the complete http data (header + content) is encrypted in the same SSL connection.
So not possible.
Have your customer send you the sniffer trace showing the problem.
Gilles. -
WCF service fronted with SSL enabled NGINX load balancer shows HTTP based WSDL url instead of HTTPS
Hi,
I have WCF service hosted using IIS 8.5 on application server. And application servers are fronted with NGINX load balancer with SSL enabled. Backend communication protocol between NGINX to application server is http.
When customer visits public domain url (https://xxx.com/service.svc), they can see the WSDL url with http://xxx.com/service.svc?wsdl.
What change should I make so that WSDL url will have https instead of http ?
This is service side configuration.
<system.serviceModel>
<services>
<service name="Service.IService">
<endpoint address="" binding="basicHttpBinding" bindingNamespace="http://xyz.com/Service" name="Service_Endpoint" contract="Service.IService" />
</service>
</services>
<bindings>
<basicHttpBinding />
</bindings>
<client />
<behaviors>
<serviceBehaviors>
<behavior>
<serviceThrottling maxConcurrentCalls="5000" maxConcurrentInstances="2147483647" maxConcurrentSessions="5000" />
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
</system.serviceModel>
Thanks in advance !!Hi,
For this scenario, you could just enable SSL in IIS to get HTTPS endpoints. If your service is exposed at https then you configure the same using “httpsGetEnabled”:
<behaviors>
<serviceBehaviors>
<behavior
name="MyServiceTypeBehaviors"
>
<serviceMetadata
httpGetEnabled="true"
/>
</behavior>
</serviceBehaviors>
</behaviors>
For more information, you could refer to:
http://www.codeproject.com/Articles/327260/What-s-new-in-WCF-Automatic-HTTPS-endpoint-for
http://blogs.msdn.com/b/brajens/archive/2007/04/26/accessing-description-metadata-wsdl-of-wcf-web-service.aspx
Regards
Maybe you are looking for
-
Blackberry Link for Q10 with Outlook Sync has very poor performance and not good Functionality
I am wondering if anyone has tested this software. Blackberry Sync software for my previous phones were wonderful. I can sync my contacts and calender in a very short time. With this new Blackberry Link it takes about 1 1/2 hours Plus to complete. An
-
QuickTime Crashing--AviImporter Plug-In problem?
First off, an advance apology if I've posted this to the wrong category...I didn't see any groups for QuickTime. After a friend used my Macbook Pro, my .avi movies quit playing. In fact, if my Finder is in a directory with avi files in it, it resets
-
Forms: How to add large text without getting wrapped
hi Waveset/Sun IDM folks, I need to add a large text to the form via a Field at the bottom of the Form. So using Title and SubTitle form properties is not an option. When I use Label/Text/TextArea type of Fiels, I see that the text is getting wrapped
-
I would like to control my MacMini (Late 2012) 2.3GHz Intel Quad Core i7 processor directly from my iOS device, either my iPhone 6 or my iPad G3. By directly I mean without having a wireless or wired network in place. I know there are a number of iOS
-
hi gurus, I want to cancel order and purchase order.i am doing Third party returns process.So where can i can cancle these both any transaction code exits .. suresh