Re: [Openvas-discuss] OpenVAS hangs the system while using very few ressources
Maybe use some application to log resource usage over time to disk to monitor what happens when the system slows down. Fabio > No dia 10/11/2016, às 08:18, Jan-Oliver Wagner > escreveu: > > Am Dienstag, 11. Oktober 2016, 11:51:13 schrieb tatooin: >> I'm using OpenVAS to scan large networks using default scan profiles. So >> far so good. However, at some points during the scan, the system becomes >> unresponsive, while OpenVAS keeps running and scanning. So the system >> works, but very very very slowly until the scan finish. >> >> Sometimes I can't even ssh into the system anymore. When this happens, >> if I run a top command; while the command takes ages to succeed, it >> doesn't show any particular overload. CPU and memory consumption are >> perfectly normal, and actually even low. >> >> So I suspect a problem of buffer; probably network buffers since this >> happens only when scanning large networks (/22 or above). >> >> Is there any /proc settings I could tweak to fix the issue ? I'm using >> Openvas on kali linux. > > Usually if shell the commands take very long, you see 100% CPU loads. > Maybe your disk IO? > > -- > Dr. Jan-Oliver Wagner | +49-541-335084-0 | http://www.greenbone.net/ > Greenbone Networks GmbH, Neuer Graben 17, 49074 Osnabrück | AG Osnabrück, HR > B > 202460 > Geschäftsführer: Lukas Grunwald, Dr. Jan-Oliver Wagner > ___ > Openvas-discuss mailing list > Openvas-discuss@wald.intevation.org > https://lists.wald.intevation.org/cgi-bin/mailman/listinfo/openvas-discuss ___ Openvas-discuss mailing list Openvas-discuss@wald.intevation.org https://lists.wald.intevation.org/cgi-bin/mailman/listinfo/openvas-discuss
Re: [Openvas-discuss] OpenVAS hangs the system while using very few ressources
Am Dienstag, 11. Oktober 2016, 11:51:13 schrieb tatooin: > I'm using OpenVAS to scan large networks using default scan profiles. So > far so good. However, at some points during the scan, the system becomes > unresponsive, while OpenVAS keeps running and scanning. So the system > works, but very very very slowly until the scan finish. > > Sometimes I can't even ssh into the system anymore. When this happens, > if I run a top command; while the command takes ages to succeed, it > doesn't show any particular overload. CPU and memory consumption are > perfectly normal, and actually even low. > > So I suspect a problem of buffer; probably network buffers since this > happens only when scanning large networks (/22 or above). > > Is there any /proc settings I could tweak to fix the issue ? I'm using > Openvas on kali linux. Usually if shell the commands take very long, you see 100% CPU loads. Maybe your disk IO? -- Dr. Jan-Oliver Wagner | +49-541-335084-0 | http://www.greenbone.net/ Greenbone Networks GmbH, Neuer Graben 17, 49074 Osnabrück | AG Osnabrück, HR B 202460 Geschäftsführer: Lukas Grunwald, Dr. Jan-Oliver Wagner ___ Openvas-discuss mailing list Openvas-discuss@wald.intevation.org https://lists.wald.intevation.org/cgi-bin/mailman/listinfo/openvas-discuss
[Openvas-discuss] OpenVAS hangs the system while using very few ressources
Dear all, I'm using OpenVAS to scan large networks using default scan profiles. So far so good. However, at some points during the scan, the system becomes unresponsive, while OpenVAS keeps running and scanning. So the system works, but very very very slowly until the scan finish. Sometimes I can't even ssh into the system anymore. When this happens, if I run a top command; while the command takes ages to succeed, it doesn't show any particular overload. CPU and memory consumption are perfectly normal, and actually even low. So I suspect a problem of buffer; probably network buffers since this happens only when scanning large networks (/22 or above). Is there any /proc settings I could tweak to fix the issue ? I'm using Openvas on kali linux. Thank you ! ___ Openvas-discuss mailing list Openvas-discuss@wald.intevation.org https://lists.wald.intevation.org/cgi-bin/mailman/listinfo/openvas-discuss
