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  • Theory of formal languages - Automaton

    - by dader51
    Hi everybody ! I'm wondering about formal languages. I have a kind of parser : It reads à xml-like serialized tree structure and turn it into a multidimmensionnal array. I figured out that i need at least three variables to achieve the job : $tree = array(); // a new array $pTree = array(&$tree); // a new array which the first element points to $tree; $deep = 0; plus the one containing the sentence splitted into words. My point is on the similarities between the algorithm deing used and the differents kinds of automatons ( state machines turing machines stack ... ). The $words variable is the "tape" of the automaton, the test/conditions of the algorithm are transitions, $deep is the state and $tree is the output. I cannont figure what is $pTree. So the question is : which is the automaton I implictly use here, and to which formal languages family does it fit ? And what's about recursion ?

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  • Formal separation marker of syslog events?

    - by Server Horror
    I've been looking at RFC5424 to find the formally specified marker that will end a syslog event. Unfortunately I couldn't find it. So If I wanted to implement some small syslog server that reacts on certain messages what is the marker that ends a message (yes commonly an event is a single line, but I just couldn't find it in the specification) Clarification: I call it event because I associate a message with a single line. An event could possibly be some thing like Type: foo Source: webservers whereas a message to me is this: Type: foo Source: webservers http://tools.ietf.org/html/rfc5424#section-6 defines: SYSLOG-MSG = HEADER SP STRUCTURED-DATA [SP MSG] neither STRUCTURED-DATA nor MSG tell me how these fields end. Especially MSG is defined as as MSG-ANY / MSG-UTF8 which expands to virtually anything. There's nothing that says a newline marks the end (or an 8 or an a for that matter). Given the example messages (section 6.5): This is one valid message, or 2 valid messages depending on wether you say that a HEADER element must never occur in any MSG element: literal whitespace <34>1 2003-10-11T22:14:15.003Z mymachine.example.com su - ID47 - <34>1 2003-10-11T22:14:15.003Z mymachine.example.com su - ID47 | is this an end marker? \t stands for a tab <34>1 2003-10-11T22:14:15.003Z mymachine.example.com su - ID47 -\t<34>1 2003-10-11T22:14:15.003Z mymachine.example.com su - ID47 | is this an end marker? \n stands for a newline <34>1 2003-10-11T22:14:15.003Z mymachine.example.com su - ID47 -\n<34>1 2003-10-11T22:14:15.003Z mymachine.example.com su - ID47 | is this an end marker? Either I'm misreading the RFC or there just isn't any mention. The sizes specified in the RFC just say what the minimum length is expected that I can work with...

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  • Do we ethically have the right to use the MAC Address for verification purposes?

    - by Matt Ridge
    I am writing a program, or starting at the very beginning of it, and I am thinking of purchase verification systems as a final step. I will be catering to Macs, PCs, and possibly Linux if all is said and done. I will also be programming this for smartphones as well using C++ and Objective-C. (I am writing a blueprint before going head first into it) That being said, I am not asking for help on doing it yet, but what I’m looking for is a realistic measurement for what could be expected as a viable and ethical option for purchase verification systems. Apple through the Apple Store, and some other stores out there have their own "You bought it" check. I am looking to use a three prong verification system. Email/password 16 to 32 character serial number using alpha/numeric and symbols with Upper and lowercase variants. MAC Address. The first two are in my mind ok, but I have to ask on an ethical standpoint, is a MAC Address to lock the software to said hardware unethical, or is it smart? I understand if an Ethernet card changes if not part of the logic board, or if the logic board changes so does the MAC address, so if that changes it will have to be re-verified, but I have to ask with how everything is today... Is it ethical to actually use the MAC address as a validation key or no? Should I be forward with this kind of verification system or should I keep it hidden as a secret? Yes I know hackers and others will find ways of knowing what I am doing, but in reality this is why I am asking. I know no verification is foolproof, but making it so that its harder to break is something I've always been interested in, and learning how to program is bringing up these questions, because I don't want to assume one thing and find out it's not really accepted in the programming world as a "you shouldn't do that" maneuver... Thanks in advance... I know this is my first programming question, but I am just learning how to program, and I am just making sure I'm not breaking some ethical programmer credo I shouldn't...

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  • How do I bypass pkgadd signature verification?

    - by Brian Knoblauch
    Trying to install CollabNet Subversion Client on Solaris x64, but I'm hung up with: ## Verifying signature for signer <Alexander Thomas(AT)> pkgadd: ERROR: Signature verification failed while verifying certificate <subject=Alexander Thomas(AT), issuer=Alexander Thomas(AT)>:<self signed certificate>. Any way to just bypass the certificate check? None of the options listed in the man page seemed appropriate.

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  • Using a SD card as a smart card for two-step verification for Mac logon

    - by Greg Brown
    What I am trying to do is create two-step verification to logon to my mac, one being that you would need to input a SD card (formated with special format or something) and then also have a password. Is there any software out there that could do this or any way of programming it so that once it reads the SD Card it makes the password bar visible for logon. Would it be easier to do it with Linux since it is open source? Any help in the right direction is appreciated. Thanks

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  • saslauthd + PostFix producing password verification and authentication errors

    - by Aram Papazian
    So I'm trying to setup PostFix while using SASL (Cyrus variety preferred, I was using dovecot earlier but I'm switching from dovecot to courier so I want to use cyrus instead of dovecot) but I seem to be having issues. Here are the errors I'm receiving: ==> mail.log <== Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: SASL authentication failure: Password verification failed Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: ipname[xx.xx.xx.xx]: SASL PLAIN authentication failed: authentication failure ==> mail.info <== Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: SASL authentication failure: Password verification failed Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: ipname[xx.xx.xx.xx]: SASL PLAIN authentication failed: authentication failure ==> mail.warn <== Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: SASL authentication failure: Password verification failed Aug 10 05:11:49 crazyinsanoman postfix/smtpd[779]: warning: ipname[xx.xx.xx.xx]: SASL PLAIN authentication failed: authentication failure I tried $testsaslauthd -u xxxx -p xxxx 0: OK "Success." So I know that the password/user I'm using is correct. I'm thinking that most likely I have a setting wrong somewhere, but can't seem to find where. Here is my files. Here is my main.cf for postfix: # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. myorigin = /etc/mailname # This is already done in /etc/mailname #myhostname = crazyinsanoman.xxxxx.com smtpd_banner = $myhostname ESMTP $mail_name #biff = no # appending .domain is the MUA's job. #append_dot_mydomain = no readme_directory = /usr/share/doc/postfix # TLS parameters smtpd_tls_cert_file = /etc/postfix/smtpd.cert smtpd_tls_key_file = /etc/postfix/smtpd.key smtpd_use_tls = yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # Relay smtp through another server or leave blank to do it yourself #relayhost = smtp.yourisp.com # Network details; Accept connections from anywhere, and only trust this machine mynetworks = 127.0.0.0/8 inet_interfaces = all #mynetworks_style = host #As we will be using virtual domains, these need to be empty local_recipient_maps = mydestination = # how long if undelivered before sending "delayed mail" warning update to sender delay_warning_time = 4h # will it be a permanent error or temporary unknown_local_recipient_reject_code = 450 # how long to keep message on queue before return as failed. # some have 3 days, I have 16 days as I am backup server for some people # whom go on holiday with their server switched off. maximal_queue_lifetime = 7d # max and min time in seconds between retries if connection failed minimal_backoff_time = 1000s maximal_backoff_time = 8000s # how long to wait when servers connect before receiving rest of data smtp_helo_timeout = 60s # how many address can be used in one message. # effective stopper to mass spammers, accidental copy in whole address list # but may restrict intentional mail shots. smtpd_recipient_limit = 16 # how many error before back off. smtpd_soft_error_limit = 3 # how many max errors before blocking it. smtpd_hard_error_limit = 12 # Requirements for the HELO statement smtpd_helo_restrictions = permit_mynetworks, warn_if_reject reject_non_fqdn_hostname, reject_invalid_hostname, permit # Requirements for the sender details smtpd_sender_restrictions = permit_mynetworks, warn_if_reject reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unauth_pipelining, permit # Requirements for the connecting server smtpd_client_restrictions = reject_rbl_client sbl.spamhaus.org, reject_rbl_client blackholes.easynet.nl, reject_rbl_client dnsbl.njabl.org # Requirement for the recipient address smtpd_recipient_restrictions = reject_unauth_pipelining, permit_mynetworks, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_unauth_destination, permit smtpd_data_restrictions = reject_unauth_pipelining # require proper helo at connections smtpd_helo_required = yes # waste spammers time before rejecting them smtpd_delay_reject = yes disable_vrfy_command = yes # not sure of the difference of the next two # but they are needed for local aliasing alias_maps = hash:/etc/postfix/aliases alias_database = hash:/etc/postfix/aliases # this specifies where the virtual mailbox folders will be located virtual_mailbox_base = /var/spool/mail/vmail # this is for the mailbox location for each user virtual_mailbox_maps = mysql:/etc/postfix/mysql_mailbox.cf # and this is for aliases virtual_alias_maps = mysql:/etc/postfix/mysql_alias.cf # and this is for domain lookups virtual_mailbox_domains = mysql:/etc/postfix/mysql_domains.cf # this is how to connect to the domains (all virtual, but the option is there) # not used yet # transport_maps = mysql:/etc/postfix/mysql_transport.cf # Setup the uid/gid of the owner of the mail files - static:5000 allows virtual ones virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 inet_protocols=all # Cyrus SASL Support smtpd_sasl_path = smtpd smtpd_sasl_local_domain = xxxxx.com ####################### ## OLD CONFIGURATION ## ####################### #myorigin = /etc/mailname #mydestination = crazyinsanoman.xxxxx.com, localhost, localhost.localdomain #mailbox_size_limit = 0 #recipient_delimiter = + #html_directory = /usr/share/doc/postfix/html message_size_limit = 30720000 #virtual_alias_domains = ##virtual_alias_maps = hash:/etc/postfix/virtual #virtual_mailbox_base = /home/vmail ##luser_relay = webmaster #smtpd_sasl_type = dovecot #smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes #smtpd_sasl_authenticated_header = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination #virtual_create_maildirsize = yes #virtual_maildir_extended = yes #proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $virtual_mailbox_limit_maps #virtual_transport = dovecot #dovecot_destination_recipient_limit = 1 Here is my master.cf: # # Postfix master process configuration file. For details on the format # of the file, see the master(5) manual page (command: "man 5 master"). # # Do not forget to execute "postfix reload" after editing this file. # # ========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== smtp inet n - - - - smtpd submission inet n - - - - smtpd -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #smtps inet n - - - - smtpd # -o smtpd_tls_wrappermode=yes # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #628 inet n - - - - qmqpd pickup fifo n - - 60 1 pickup cleanup unix n - - - 0 cleanup qmgr fifo n - n 300 1 qmgr #qmgr fifo n - - 300 1 oqmgr tlsmgr unix - - - 1000? 1 tlsmgr rewrite unix - - - - - trivial-rewrite bounce unix - - - - 0 bounce defer unix - - - - 0 bounce trace unix - - - - 0 bounce verify unix - - - - 1 verify flush unix n - - 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - - - - smtp # When relaying mail as backup MX, disable fallback_relay to avoid MX loops relay unix - - - - - smtp -o smtp_fallback_relay= # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - - - - showq error unix - - - - - error retry unix - - - - - error discard unix - - - - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - - - - lmtp anvil unix - - - - 1 anvil scache unix - - - - 1 scache # # ==================================================================== # Interfaces to non-Postfix software. Be sure to examine the manual # pages of the non-Postfix software to find out what options it wants. # # Many of the following services use the Postfix pipe(8) delivery # agent. See the pipe(8) man page for information about ${recipient} # and other message envelope options. # ==================================================================== # # maildrop. See the Postfix MAILDROP_README file for details. # Also specify in main.cf: maildrop_destination_recipient_limit=1 # maildrop unix - n n - - pipe flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient} # # ==================================================================== # # Recent Cyrus versions can use the existing "lmtp" master.cf entry. # # Specify in cyrus.conf: # lmtp cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4 # # Specify in main.cf one or more of the following: # mailbox_transport = lmtp:inet:localhost # virtual_transport = lmtp:inet:localhost # # ==================================================================== # # Cyrus 2.1.5 (Amos Gouaux) # Also specify in main.cf: cyrus_destination_recipient_limit=1 # cyrus unix - n n - - pipe user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user} # # ==================================================================== # Old example of delivery via Cyrus. # #old-cyrus unix - n n - - pipe # flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user} # # ==================================================================== # # See the Postfix UUCP_README file for configuration details. # uucp unix - n n - - pipe flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) # # Other external delivery methods. # ifmail unix - n n - - pipe flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp unix - n n - - pipe flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient scalemail-backend unix - n n - 2 pipe flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension} mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user} #dovecot unix - n n - - pipe # flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -d ${recipient} Here is what I'm using for /etc/postfix/sasl/smtpd.conf log_level: 7 pwcheck_method: saslauthd pwcheck_method: auxprop mech_list: PLAIN LOGIN CRAM-MD5 DIGEST-MD5 allow_plaintext: true auxprop_plugin: mysql sql_hostnames: 127.0.0.1 sql_user: xxxxx sql_passwd: xxxxx sql_database: maildb sql_select: select crypt from users where id = '%u' As you can see I'm trying to use mysql as my authentication method. The password in 'users' is set through the 'ENCRYPT()' function. I also followed the methods found in http://www.jimmy.co.at/weblog/?p=52 in order to redo /var/spool/postfix/var/run/saslauthd as that seems to be a lot of people's problems, but that didn't help at all. Also, here is my /etc/default/saslauthd START=yes DESC="SASL Authentication Daemon" NAME="saslauthd" # Which authentication mechanisms should saslauthd use? (default: pam) # # Available options in this Debian package: # getpwent -- use the getpwent() library function # kerberos5 -- use Kerberos 5 # pam -- use PAM # rimap -- use a remote IMAP server # shadow -- use the local shadow password file # sasldb -- use the local sasldb database file # ldap -- use LDAP (configuration is in /etc/saslauthd.conf) # # Only one option may be used at a time. See the saslauthd man page # for more information. # # Example: MECHANISMS="pam" MECHANISMS="pam" MECH_OPTIONS="" THREADS=5 OPTIONS="-c -m /var/spool/postfix/var/run/saslauthd -r" I had heard that potentially changing MECHANISM to MECHANISMS="mysql" but obviously that didn't help as is shown by the options listed above and also by trying it out anyway in case the documentation was outdated. So, I'm now at a loss... I have no idea where to go from here or what steps I need to do to get this working =/ Anyone have any ideas? EDIT: Here is the error that is coming from auth.log ... I don't know if this will help at all, but here you go: Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql auxprop plugin using mysql engine Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: begin transaction Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin create statement from userPassword user xxxxxx.com Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin doing query select crypt from users where id = '[email protected]'; Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin create statement from cmusaslsecretPLAIN user xxxxxx.com Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin doing query select crypt from users where id = '[email protected]'; Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: commit transaction Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1' Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: begin transaction Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin create statement from userPassword user xxxxxx.com Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin doing query select crypt from users where id = '[email protected]'; Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin create statement from cmusaslsecretPLAIN user xxxxxx.com Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin doing query select crypt from users where id = '[email protected]'; Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: commit transaction Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin Parse the username [email protected] Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin try and connect to a host Aug 11 17:19:56 crazyinsanoman postfix/smtpd[9503]: sql plugin trying to open db 'maildb' on host '127.0.0.1'

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  • Postfix certificate verification failed for smtp.gmail.com

    - by Andi Unpam
    I have problem, my email server using postfix with gmail smtp, i use account google apps, but always ask for SASL authentication failed, I sent an email using php script, after I see the error logs in the wrong password, after I open the URL from the browser and no verification postfixnya captcha and could return, but after 2-3 days later happen like that again. This my config postfix #myorigin = /etc/mailname smtpd_banner = Hostingbitnet Mail Server biff = no append_dot_mydomain = no readme_directory = no myhostname = webmaster.hostingbitnet.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = localhost, webmaster.hostingbitnet.com, localhost.localdomain, 103.9.126.163 relayhost = [smtp.googlemail.com]:587 relay_transport = relay relay_destination_concurrency_limit = 1 mynetworks = 127.0.0.0/8, 192.168.0.0/16, 172.16.0.0/16, 10.0.0.0/8, 103.9.126.0/24 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all default_transport = smtp relayhost = [smtp.gmail.com]:587 smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/google-apps smtp_sasl_security_options = noanonymous smtp_use_tls = yes smtp_sender_dependent_authentication = yes tls_random_source = dev:/dev/urandom default_destination_concurrency_limit = 1 smtp_tls_CAfile = /etc/postfix/tls/root.crt smtp_tls_cert_file = /etc/postfix/tls/cert.pem smtp_tls_key_file = /etc/postfix/tls/privatekey.pem smtp_tls_session_cache_database = btree:$data_directory/smtp_tls_session_cache smtp_tls_security_level = may smtp_tls_loglevel = 1 smtpd_tls_CAfile = /etc/postfix/tls/root.crt smtpd_tls_cert_file = /etc/postfix/tls/cert.pem smtpd_tls_key_file = /etc/postfix/tls/privatekey.pem smtpd_tls_session_cache_database = btree:$data_directory/smtpd_tls_session_cache smtpd_tls_security_level = may smtpd_tls_loglevel = 1 #secure smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,check_client_access hash:/var/lib/pop-before-smtp/hosts,reject_unauth_destination Log from mail.log Oct 30 14:51:13 webmaster postfix/smtp[9506]: Untrusted TLS connection established to smtp.gmail.com[74.125.25.109]:587: TLSv1 with cipher RC4-SHA (128/128 bits) Oct 30 14:51:15 webmaster postfix/smtp[9506]: 87E2739400B1: SASL authentication failed; server smtp.gmail.com[74.125.25.109] said: 535-5.7.1 Please log in with your web browser and then try again. Learn more at?535 5.7.1 https://support.google.com/mail/bin/answer.py?answer=78754 ix9sm156630pbc.7 Oct 30 14:51:15 webmaster postfix/smtp[9506]: setting up TLS connection to smtp.gmail.com[74.125.25.108]:587 Oct 30 14:51:15 webmaster postfix/smtp[9506]: certificate verification failed for smtp.gmail.com[74.125.25.108]:587: untrusted issuer /C=US/O=Equifax/OU=Equifax Secure Certificate Authority Oct 30 14:51:16 webmaster postfix/smtp[9506]: Untrusted TLS connection established to smtp.gmail.com[74.125.25.108]:587: TLSv1 with cipher RC4-SHA (128/128 bits) Oct 30 14:51:17 webmaster postfix/smtp[9506]: 87E2739400B1: to=<[email protected]>, relay=smtp.gmail.com[74.125.25.108]:587, delay=972, delays=967/0.03/5.5/0, dsn=4.7.1, status=deferred (SASL authentication failed; server smtp.gmail.com[74.125.25.108] said: 535-5.7.1 Please log in with your web browser and then try again. Learn more at?535 5.7.1 https://support.google.com/mail/bin/answer.py?answer=78754 s1sm3850paz.0) Oct 30 14:51:17 webmaster postfix/error[9508]: B3960394009D: to=<[email protected]>, orig_to=<root>, relay=none, delay=29992, delays=29986/5.6/0/0.07, dsn=4.7.1, status=deferred (delivery temporarily suspended: SASL authentication failed; server smtp.gmail.com[74.125.25.108] said: 535-5.7.1 Please log in with your web browser and then try again. Learn more at?535 5.7.1 https://support.google.com/mail/bin/answer.py?answer=78754 s1sm3850paz.0) BTW I made cert follow the link here http://koti.kapsi.fi/ptk/postfix/postfix-tls-cacert.shtml and it worked, but after 2/3 days my email back to problem invalid SASL, and then i'm required to log in use a browser and enter the captcha there but success log in after input captcha, and my email server can send emails from telnet or php script. but it will be back in trouble after 2/3days later. My question is how to make it permanent certificate? Thanks n greeting.

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  • How can an amateur programmer become professional without formal education (college) outside the US

    - by AlexRednic
    What is the path? Do I get certified (Microsoft,Sun,etc)? How do I build reputation? How do I make myself valuable without a college degree? How do I make others recognize my value? These are just a few questions but all point in the same direction. Are any of you in the same situation? What paths did you follow to become a successful programmer without the need of formal education?

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  • Avoid warning 'Unreferenced Formal Parameter'

    - by bdhar
    I have a super class like this: class Parent { public: virtual void Function(int param); }; void Parent::Function(int param) { std::cout << param << std::endl; } ..and a sub-class like this: class Child : public Parent { public: void Function(int param); }; void Child::Function(int param) { ;//Do nothing } When I compile the sub-class .cpp file, I get this error warning C4100: 'param' : unreferenced formal parameter As a practise, we used to treat warnings as errors. How to avoid the above warning? Thanks.

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  • Formal name of Magento’s Class Override Design Pattern?

    - by Alan Storm
    Magento is a newish (past 5 years) PHP based Ecommerce system with an architecture that's similar to the Java Spring framework (or so I've been told) One of the features of the Framework is certain classes are not directly instantiated. Rather than do something like $model = new Mage_Foo_Model_Name(); you pass an identifier into a static method on a global application object $model = Mage::getModel('foo/name'); and this instantiates the class for you. One of the wins with this approach is getModel checks a global configuration system for the foo/name identifier, and instantiates the class name it finds in the configuration system. This allows you to change the behavior of a Model system wide with a single configuration change. Is there a formal, Gang of Four or otherwise, name that describes this system/design pattern? The instantiation itself looks like a classic Factory pattern, but I'm specifically interested in the whole "override a class in the system via configuration" aspect. Is there a name/concept that covers this, or is it contained within the worldview of a Factory?

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  • Hyper-V Server hvremote.wsf Script - ns lookup for DNS Verification test fails

    - by Vazgen
    I'm trying to connect my Hyper-V Server to a Windows 8 client for remote management. I have: Joined server to WORKGROUP Enabled Remote Management Set the server name Set a static IP Set the DNS servers to my ISPs DNS Servers (same as default DNS Servers on my Windows 8 remote management client) Set the correct time zone Created net user on server (net user /add admin password) Added user to special Administrators group on server (hvremote /add:admin) Granted anonymous dcom access on client using hvremote However, the "ns lookup for DNS verification" fails on both the client and server with the same error: Server: my.isps.server.name.net Address: 111.222.333.1 *** my.isps.server.name.net can't find 192.168.1.3: Non-existent domain Thanks for the help.

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  • Why some consider static analysis a testing and some do not?

    - by user970696
    Preparing myself also to ISTQB certification, I found they call static analysis actually as a static testing, while some engineering book distinct between static analysis and testing, which is the dynamic activity. I tent to think that static analysis is not a testing in the true sense as it does not test, it checks/verifies. But sure I would love to hear opinion of the true experts here. Thank you

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  • How to verify real people?

    - by Gerben Jacobs
    For a music community, I want bands to be able to verify themselves. What is the best way to do this? For example I could let the record label mail me, but some bands are indepedent. I could also ask them to put a 'code' on their website or Facebook page and then check manually. I'm not per se looking for a waterproof solution, so no scanning of real life documents and I'm okay with doing the checks manually. In other words, how can you verify real people with their virtual presence?

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  • Types of semantic bugs, logic errors [closed]

    - by C-Otto
    I am a PhD student and currently focus on automatically finding instances of new types of bugs in (Java) programs that cannot be found by existing tools like FindBugs. The existing tool currently is used to prove/disprove termination of (Java) programs. I have some ideas (see below), but I could need more input from you (experienced programmers, potential users of my tool). What kind of bugs do you wish to find? What types of bugs exist and might be suitable for my analysis? One strength of the approach I use is detailled information about the heap. So in contrast to FindBugs, I can work with knowledge of the form "variable x and variable y are disjoint on the heap" or "variable z is not cyclic". It is also possible to see if a method might have side effects (and if so, which variables may/may not be affected by it). Example 1: Vacuous call: Graph graphOne = createGraph(); Graph graphTwo = createGraph(); Node source = graphTwo.getRootNode(); for (Node n : graphOne.getNodes()) { if (areConnected(source, n)) { graphTwo.addNode(n); } } Imagine createGraph() creates a fresh graph, so that graphOne and graphTwo are disjoint on the heap. Then, because source is taken from graphTwo instead of graphOne, the call to areConnected always returns false. In this situation I could find out that the call areConnected is useless (because it does not have any side effect and the return value always is false) which helps finding the real bug (taking source from the wrong graph). For this the information that x and y are disjoint (because graphOne and graphTwo are disjoint) is crucial. This bug is related to calling x.equals(y) where x and y are objects of different classes. In this scenario, most implementations of equals() always return false, which most likely is not the intended result. FindBugs already finds this bug (hardcoded to equals(), semantics of implementation is not checked). Example 2: Useless code: someCode(); while (something()) { yetMoreSomething(); } moreCode(); In the case that the loop (so the code in something() and yetMoreSomething()) does not modify anything visible outside the loop, it does not make sense to run this code - the program has the same behaviour as someCode(); moreCode() (i.e., without the loop). To find this out, one needs detailled information about the side effects of the (possibly useless) code. If I can prove that the code does not have any side effect that can be observed afterwards (in the example: in moreCode() or later), then the code indeed is useless. Of course, here Input/Output of any form must be seen as a side effect, so that a System.out.println(...) is not considered useless. Example 3: Ignored return value: Instead of x = foo(); and making use of x, the method is called without storing the result: foo();. If the method does not have any side effect, its invocation is useless and can be dropped. Most likely, the bug here is that the returned value should have been used. Here, too, detailled information about side effects are needed. Can you think of similar types of bugs that might be detected (only) with detailled information about the heap, side effects, semantics of called methods, ...? Did you encounter bugs related to the ones shown below in "real life"? By the way, the tool is AProVE and Java related publications can be found on my homepage. Thanks a lot, Carsten

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  • Is asking for control totals on a file an outdated means of verifying a file?

    - by CTKeane
    I'm in a new position where I need to process a flat files on a regular basis. The last time I did this was 5 or 6 years ago but as part of the file layout I received control totals. It gave me simplistic information on the file like the total number of records as well as sums of the important fields. This helped me during testing then also during production to verify the file arrived and has correct information. I have asked for similar data for this new project and have hit a wall of no. Is this no longer a standard practice? Is there a better way?

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  • apache Client Certificate Authentication errors: Certificate Verification: Error (18): self signed certificate

    - by decoy
    So I have been following instructions on setting up Client Certificate Authentication in Apache2 w/ mod_ssl. This is solely for the purpose of testing an application against CAA, not for any sort of production use. So far I've followed http://www.impetus.us/~rjmooney/projects/misc/clientcertauth.html for advice on generating my CA, server, and client encryption information. I've put all three of them into /etc/ssl/ca/private. I've setup the following additional directives in my default_ssl site file: <IfModule mod_ssl.c> <VirtualHost _default_:443> ... SSLEngine on SSLCertificateFile /etc/ssl/ca/private/server.crt SSLCertificateKeyFile /etc/ssl/ca/private/server.key SSLVerifyClient require SSLVerifyDepth 2 SSLCACertificatePath /etc/ssl/ca/private SSLCACertificateFile /etc/ssl/ca/private/ca.crt <Location /> SSLRequireSSL SSLVerifyClient require SSLVerifyDepth 2 </Location> <FilesMatch "\.(cgi|shtml|phtml|php)$"> SSLOptions +StdEnvVars </FilesMatch> <Directory /usr/lib/cgi-bin> SSLOptions +StdEnvVars </Directory> ... </VirtualHost> </IfModule> I've install the p12 file into Chrome, but when I go to visit https://localhost, I get the following errors Chrome: Error 107 (net::ERR_SSL_PROTOCOL_ERROR): SSL protocol error. Apache: Certificate Verification: Error (18): self signed certificate If I had to guess, one of my directives is not setup right to load and verify the p12 w/ my self created CA. But I can't for the life of me figure out what it is. Would anyone have more experience here who could point me in the right direction?

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  • Exchange backup verification shows no files

    - by Olaf
    [SBS2003SP2] If i read the exhange log it shows the backup contains no files just folders and the total size seems to be Ok. I i try to restore the folders are empty... But the 14 files that where backupped dissapeared in the verification log?! Other backups on the same medium turned out to be fine. Any idea what's wrong here? This is my log: Backup Status Operation: Backup Active backup destination: File Media name: "testbackup.bkf created 2-6-2010 at 11:25" Volume shadow copy creation: Attempt 1. Backup of "SERVER1\Microsoft Information Store\First Storage Group" Backup set #1 on media #1 Backup description: "Set created 2-6-2010 at 11:25" Media name: "testbackup.bkf created 2-6-2010 at 11:25" Backup Type: Normal Backup started on 2-6-2010 at 11:26. Backup completed on 2-6-2010 at 12:21. Directories: 4 Files: 14 Bytes: 26.842.932.104 Time: 55 minutes and 38 seconds Verify Status Operation: Verify After Backup Active backup destination: File Active backup destination: \backup\Server1\Backup Files\testbackup.bkf Verify of "SERVER1\Microsoft Information Store\First Storage Group" Backup set #1 on media #1 Backup description: "Set created 2-6-2010 at 11:25" Verify started on 2-6-2010 at 12:21. Verify completed on 2-6-2010 at 12:47. Directories: 4 Files: 0 Different: 0 Bytes: 26.842.932.104 Time: 25 minutes and 46 seconds

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  • Verification of downloaded package with rpm

    - by moooeeeep
    I wanted to install a package on CentOS 6 via rpm (e.g., the current epel-release). EDIT: Of course I would always prefer the installation via yum but somehow I failed to get that specific package installed using this normal approach. As such, the EPEL/FAQ recommends Version 2. As I'm downloading the package through an insecure channel (http) I wanted to make sure that the integrity of the file is verified using information that is not provided with the downloaded file itself. Is this especially true for all of these approaches? I've seen various approaches to this on the internet: Version 1 rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-7.noarch.rpm Version 2 rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-7.noarch.rpm Version 3 wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-7.noarch.rpm rpm --import https://fedoraproject.org/static/0608B895.txt rpm -K epel-release-6-7.noarch.rpm rpm -i epel-release-6-7.noarch.rpm I do not know rpm very well, so I wondered how they might differ? My guess (after reading the manpage) is that the first should only be used when the package is previously not installed, the second would additionally remove previous versions of the package after installation, the first two omit some verification steps before the actual installation that are done by rpm -K. So my main questions at this point are Are my guesses correct or am I missing something? Is the rpm --import ... implicitly done for the first two approaches as well, and if not, isn't it necessary to do so after all? Are these additional checks performed by rpm -K ... any relevant? What is the best (most secure, most reliable, most maintainable, ...) way of installing packages via rpm in general?

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  • MIDlet + BlackBerry API = verification error?

    - by Kilnr
    Hi, Is there any way to write a MIDlet, but still use BlackBerry API classes and functions (including the APIs that require code signing)? In particular, I'm trying to use Kuix (http://www.kalmeo.org/projects/kuix). A pure MIDlet + Kuix (so without BlackBerry stuff) works perfectly after I converted the jar/jad to a cod file. As soon as I add BlackBerry API-stuff (CoverageInfo.COVERAGE_DIRECT in this case) I get a verification error when trying to run the cod file: Error starting $name: Module $name has verification error 2410 at offset 9a4f What can I do to solve this?

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  • openvpn WARNING: No server certificate verification method has been enabled

    - by tmedtcom
    I tried to install openvpn on debian squeez (server) and connect from my fedora 17 as (client). Here is my configuration: server configuration ###cat server.conf # Serveur TCP ** proto tcp** port 1194 dev tun # Cles et certificats ca /etc/openvpn/easy-rsa/keys/ca.crt cert /etc/openvpn/easy-rsa/keys/server.crt key /etc/openvpn/easy-rsa/keys/server.key dh /etc/openvpn/easy-rsa/keys/dh1024.pem # Reseau #Adresse virtuel du reseau vpn server 192.170.70.0 255.255.255.0 #Cette ligne ajoute sur le client la route du reseau vers le serveur push "route 192.168.1.0 255.255.255.0" #Creer une route du server vers l'interface tun. #route 192.170.70.0 255.255.255.0 # Securite keepalive 10 120 #type d'encryptage des données **cipher AES-128-CBC** #activation de la compression comp-lzo #nombre maximum de clients autorisés max-clients 10 #pas d'utilisateur et groupe particuliers pour l'utilisation du VPN user nobody group nogroup #pour rendre la connexion persistante persist-key persist-tun #Log d'etat d'OpenVPN status /var/log/openvpn-status.log #logs openvpnlog /var/log/openvpn.log log-append /var/log/openvpn.log #niveau de verbosité verb 5 ###cat client.conf # Client client dev tun [COLOR="Red"]proto tcp-client[/COLOR] remote <my server wan IP> 1194 resolv-retry infinite **cipher AES-128-CBC** # Cles ca ca.crt cert client.crt key client.key # Securite nobind persist-key persist-tun comp-lzo verb 3 Message from the host client (fedora 17) in the log file / var / log / messages: Dec 6 21:56:00 GlobalTIC NetworkManager[691]: <info> Starting VPN service 'openvpn'... Dec 6 21:56:00 GlobalTIC NetworkManager[691]: <info> VPN service 'openvpn' started (org.freedesktop.NetworkManager.openvpn), PID 7470 Dec 6 21:56:00 GlobalTIC NetworkManager[691]: <info> VPN service 'openvpn' appeared; activating connections Dec 6 21:56:00 GlobalTIC NetworkManager[691]: <info> VPN plugin state changed: starting (3) Dec 6 21:56:01 GlobalTIC NetworkManager[691]: <info> VPN connection 'Connexion VPN 1' (Connect) reply received. Dec 6 21:56:01 GlobalTIC nm-openvpn[7472]: OpenVPN 2.2.2 x86_64-redhat-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] [eurephia] built on Sep 5 2012 Dec 6 21:56:01 GlobalTIC nm-openvpn[7472]:[COLOR="Red"][U][B] WARNING: No server certificate verification method has been enabled.[/B][/U][/COLOR] See http://openvpn.net/howto.html#mitm for more info. Dec 6 21:56:01 GlobalTIC nm-openvpn[7472]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts Dec 6 21:56:01 GlobalTIC nm-openvpn[7472]:[COLOR="Red"] WARNING: file '/home/login/client/client.key' is group or others accessible[/COLOR] Dec 6 21:56:01 GlobalTIC nm-openvpn[7472]: UDPv4 link local: [undef] Dec 6 21:56:01 GlobalTIC nm-openvpn[7472]: UDPv4 link remote: [COLOR="Red"]<my server wan IP>[/COLOR]:1194 Dec 6 21:56:01 GlobalTIC nm-openvpn[7472]: [COLOR="Red"]read UDPv4 [ECONNREFUSED]: Connection refused (code=111)[/COLOR] Dec 6 21:56:03 GlobalTIC nm-openvpn[7472]: [COLOR="Red"]read UDPv4[/COLOR] [ECONNREFUSED]: Connection refused (code=111) Dec 6 21:56:07 GlobalTIC nm-openvpn[7472]: read UDPv4 [ECONNREFUSED]: Connection refused (code=111) Dec 6 21:56:15 GlobalTIC nm-openvpn[7472]: read UDPv4 [ECONNREFUSED]: Connection refused (code=111) Dec 6 21:56:31 GlobalTIC nm-openvpn[7472]: read UDPv4 [ECONNREFUSED]: Connection refused (code=111) Dec 6 21:56:41 GlobalTIC NetworkManager[691]: <warn> VPN connection 'Connexion VPN 1' (IP Conf[/CODE] ifconfig on server host(debian): ifconfig eth0 Link encap:Ethernet HWaddr 08:00:27:16:21:ac inet addr:192.168.1.6 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::a00:27ff:fe16:21ac/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:9059 errors:0 dropped:0 overruns:0 frame:0 TX packets:5660 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:919427 (897.8 KiB) TX bytes:1273891 (1.2 MiB) tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:192.170.70.1 P-t-P:192.170.70.2 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) ifconfig on the client host (fedora 17) as0t0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500 inet 5.5.0.1 netmask 255.255.252.0 destination 5.5.0.1 unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 200 (UNSPEC) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2 bytes 321 (321.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 as0t1: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500 inet 5.5.4.1 netmask 255.255.252.0 destination 5.5.4.1 unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 200 (UNSPEC) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2 bytes 321 (321.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 as0t2: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500 inet 5.5.8.1 netmask 255.255.252.0 destination 5.5.8.1 unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 200 (UNSPEC) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2 bytes 321 (321.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 as0t3: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500 inet 5.5.12.1 netmask 255.255.252.0 destination 5.5.12.1 unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 200 (UNSPEC) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2 bytes 321 (321.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 **p255p1**: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.2 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::21d:baff:fe20:b7e6 prefixlen 64 scopeid 0x20<link> ether 00:1d:ba:20:b7:e6 txqueuelen 1000 (Ethernet) RX packets 4842070 bytes 3579798184 (3.3 GiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3996158 bytes 2436442882 (2.2 GiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 16 p255p1 is label for eth0 interface and on the server : root@hoteserver:/etc/openvpn# tree . +-- client ¦** +-- ca.crt ¦** +-- client.conf ¦** +-- client.crt ¦** +-- client.csr ¦** +-- client.key ¦** +-- client.ovpn ¦* ¦** +-- easy-rsa ¦** +-- build-ca ¦** +-- build-dh ¦** +-- build-inter ¦** +-- build-key ¦** +-- build-key-pass ¦** +-- build-key-pkcs12 ¦** +-- build-key-server ¦** +-- build-req ¦** +-- build-req-pass ¦** +-- clean-all ¦** +-- inherit-inter ¦** +-- keys ¦** ¦** +-- 01.pem ¦** ¦** +-- 02.pem ¦** ¦** +-- ca.crt ¦** ¦** +-- ca.key ¦** ¦** +-- client.crt ¦** ¦** +-- client.csr ¦** ¦** +-- client.key ¦** ¦** +-- dh1024.pem ¦** ¦** +-- index.txt ¦** ¦** +-- index.txt.attr ¦** ¦** +-- index.txt.attr.old ¦** ¦** +-- index.txt.old ¦** ¦** +-- serial ¦** ¦** +-- serial.old ¦** ¦** +-- server.crt ¦** ¦** +-- server.csr ¦** ¦** +-- server.key ¦** +-- list-crl ¦** +-- Makefile ¦** +-- openssl-0.9.6.cnf.gz ¦** +-- openssl.cnf ¦** +-- pkitool ¦** +-- README.gz ¦** +-- revoke-full ¦** +-- sign-req ¦** +-- vars ¦** +-- whichopensslcnf +-- openvpn.log +-- openvpn-status.log +-- server.conf +-- update-resolv-conf on the client: [login@hoteclient openvpn]$ tree . |-- easy-rsa | |-- 1.0 | | |-- build-ca | | |-- build-dh | | |-- build-inter | | |-- build-key | | |-- build-key-pass | | |-- build-key-pkcs12 | | |-- build-key-server | | |-- build-req | | |-- build-req-pass | | |-- clean-all | | |-- list-crl | | |-- make-crl | | |-- openssl.cnf | | |-- README | | |-- revoke-crt | | |-- revoke-full | | |-- sign-req | | `-- vars | `-- 2.0 | |-- build-ca | |-- build-dh | |-- build-inter | |-- build-key | |-- build-key-pass | |-- build-key-pkcs12 | |-- build-key-server | |-- build-req | |-- build-req-pass | |-- clean-all | |-- inherit-inter | |-- keys [error opening dir] | |-- list-crl | |-- Makefile | |-- openssl-0.9.6.cnf | |-- openssl-0.9.8.cnf | |-- openssl-1.0.0.cnf | |-- pkitool | |-- README | |-- revoke-full | |-- sign-req | |-- vars | `-- whichopensslcnf |-- keys -> ./easy-rsa/2.0/keys/ `-- server.conf the problem source is cipher AES-128-CBC ,proto tcp-client or UDP or the interface p255p1 on fedora17 or file authentification ta.key is not found ????

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  • Trouble understanding SSL certificate chain verification

    - by Josh K
    My app uses SSL to communicate securely with a server and it's having trouble verifying the certificate chain. The chain looks like this: Entrust.net Secure Server Certification Authority - DigiCert Global CA - *.ourdomain.com We are using a certificate store pulled from Mozilla. It contains the Entrust.net certificate, but not the DigiCert Global CA one. My understanding is that an intermediate authority doesn't have to be trusted as long as the root authority is, but the verification fails: % openssl verify -CAfile mozilla-root-certs.crt ourdomain.com.crt error 20 at 0 depth lookup:unable to get local issuer certificate So do I need to explicitly trust the DigiCert Global CA in order for verification to pass? That seems wrong. But you tell me! EDIT: I now understand that the certificate file needs to be available to OpenSSL up front. Something like this works: % openssl verify -CAfile mozilla-root-certs.crt -untrusted digicert.crt ourdomain.com.crt ourdomain.com.crt: OK This allows me to provide a copy of the DigiCert CA without explicitly saying "I trust it", the whole chain still needs to be verified. But surely browsers like Firefox won't always ship with a copy of every single certificate it'll ever need. There's always going to be new CAs and the point is to use the security of the root certificate to make sure all intermediate CAs are valid. Right? So how does this work? Is it really as silly as it looks?

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  • Formal Equivalence between programming languages

    - by Ketan
    Hello We have 2 languages which are (informally) semantically equivalent but syntactically different. One is xml and another is script based. How can I go about formally proving that both languages are in fact equivalent. Script approach is just a convenient way to write a same program that would be tedious to write in xml. Thanks Ketan

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  • POSTmethod and PHP- login verification

    - by Neethusha
    I wrote a code for login verification..I got output with GET. But i need output with POST since it is more secure.pls let me know if there is any error in my code. javascript code: var xml; function verifyusernamepasswd(pass) { //pass is password that will be passed as parameter xml=new XMLHttpRequest(); var url="http://localhost/loginvalidate.php"; var para="q="+username+"&p="+pass;//username is global xml.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); xml.setRequestHeader("Content-length", para.length); xml.setRequestHeader("Connection", "close"); xml.open("POST",url,true); xml.onreadystatechange=statechanged1; xml.send(para); } function statechanged1() { if(xml.readyState==4) alert(xml.responseText); } php code: <?php $username=$_POST["q"]; $password=$_POST["p"]; $con=mysql_connect("localhost","root","blaze"); if(!$con) { die('Could not connect: '.mysql.error()); } mysql_select_db("BLAZE",$con) or die("No such Db"); $result=mysql_query("SELECT Passwword FROM USERTABLE WHERE Userhandle='$username'"); if($result==null) echo "false"; else if($result!=null) { $row=mysql_fetch_array($result); if((strcmp($row['Passwword'],$password)==0)) echo "true"; else echo "false"; } ?> the verification does not return anything, cos my alert is not displayed at all...pls tell me whats wrong....

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