Έχουν
παρουσιαστεί κάποια προβλήματα σε Exchange Clusters όταν λειτουργούν
μαζί με το RightFax Connector της Captaris. Το πρόβλημα έχει να κάνει
με τη συνεργασία του Right Fax και του Intelligent Message Filter (IMF)
του Exchange Server 2003. Συγκεκριμένα έχει παρατηρηθεί πως κάτω από
συγκεκριμένες συνθήκες, τα nodes του cluster κάνουν συνεχώς fail-over.
Το παρακάτω άρθρο από την κατασκευάστρια εταιρία του Right Fax αναφέρει
κάποιο workaround έτσι ώστε να μην κάνουν συνέχεια restart τα nodes. Να
σημειωθεί πως αν το IMF δεν είναι ενεργοποιημένο στον Exchange Server
τότε το πρόβλημα δεν υπάρχει.
Γνωσιακή Βάση της Captaris
Rootkit και σε DVD;
in Τα "πρωτοσέλιδα"
Posted
Ανακαλύφθηκε άλλο ένα rootkit, αντίστοιχο με αυτό της Sony BMG, τώρα σε γερμανικό DVD από την F-Secure:
A popular movie DVD has been discovered using rootkit-like copy protection, Anti-virus com
pany F-Secure has revealed.
The German DVD of Hollywood blockbuster Mr and Mrs Smith, released on 24 January, contains
copy-protection software called Alpha-DVD, according to news organisation Heise, which fi
rst reported the issue. The disc will not play on Windows PCs unless the software is insta
lled. Alpha-DVD contains user-mode rootkit-like features that hide its own process, accord
ing to F-Secure.
The discovery comes not long after the controversy over similar features found in copy-pro
tection software on CDs distributed by Sony BMG. Rootkits are used by intruders to maintai
n persistent access to a system, while keeping malicious processes hidden.
Heise said another recent German DVD, "Edison", also contains Alpha-DVD, as does a Korea
n edition of "Oldboy".
What's more, like Sony BMG's copy-protection software, Alpha-DVD can be misused by third
-party software for malicious purposes, according to Heise. The organisation said it has d
eveloped a proof-of-concept application that could call on Alpha-DVD to hide itself from t
he OS. "It takes only a few lines of code to make use of Alpha-DVDs stealth functionality
," Heise said in a report.
Unlike the Sony BMG software, Alpha-DVD doesn't hide files or registry entries, according
to F-Secure. "This makes the feature a bit less dangerous, as anti-virus products will s
till be able to scan all files on the disk," said F-Secure vice president Antti Vihavaine
n in a blog post. "However, it's not that uncommon for real malware to only hide (its) p
rocesses."
The creator of Alpha-DVD, a South Korean LG spinoff called Settec, is providing removal so
ftware for those concerned about the impact of its copy protection system. By default Alph
a-DVD provides neither a Start Menu entry nor an entry in Windows' Add/Remove Programs fe
ature.
F-Secure said software makers should always avoid hiding anything from users, and particul
arly administrators. "It rarely serves the needs of the user, and in many cases it's ver
y easy to create a security vulnerability this way," wrote Vihavainen.
Source: http://www.techworld.com